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![Linus Torvalds](/assets/img/avatar_default.png)
In this round, we've tried to address some performance issues in f2fs_checkpoint and direct IO flows. Also, there was a work to enhance the page cache management used for compression. Other than them, we've done typical work including sysfs, code clean-ups, tracepoint, sanity check, in addition to bug fixes on corner cases. Enhancement: - use iomap for direct IO - try to avoid lock contention to improve f2fs_ckpt speed - avoid unnecessary memory allocation in compression flow - POSIX_FADV_DONTNEED drops the page cache containing compression pages - add some sysfs entries (gc_urgent_high_remaining, pending_discard) Bug fix: - try not to expose unwritten blocks to user by DIO : this was added to avoid merge conflict; another patch is coming to address other missing case. - relax minor error condition for file pinning feature used in Android OTA - fix potential deadlock case in compression flow - should not truncate any block on pinned file In addition, we've done some code clean-ups and tracepoint/sanity check improvement. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE00UqedjCtOrGVvQiQBSofoJIUNIFAmHnY0sACgkQQBSofoJI UNIOkg//UmjCSSG63/YZM/lQQQe4kK/tT6QTT8W/VQtzWL9vXcL7bcaxzwX3LQbR Gb47Zmsw9bzVJt6GQ2VRbODE1py/KPNMl5SDXJXHo6fOZ/dOnHve32gLwcLEzhPd casB0TbwQJ6bpEsJiZ5ho741mURxUrSCHAAX6QIQVXh8ofm9qAqlWu74OLI6UHiV MM84XmXcHtGUZG5SCTWfSCJhJM6Az/3A83ws9KVeu86dlE7IrigphU2nI2vdCKiO trR3CiLC/364fiM+9ssLS3X2wKFPD/unEU7ljBv5UaG36jsVfW+tisjTKldzpiKK 44cNgDv1FEDxC0g3FKUhEGezAhxT8AJZB0in0zn8+5scarKGJtFCy9XhCGMVaeP+ usxvHVy8Ga1I7sMV6oHEBcGiPJWkmurzq1XXobtj6oL/JxN4gqUJeHTcod89hQHA lx9kZs7MLKm2au+T3gZf5xyx35YCie8sY/N1qoPy8tU9Q7FJ54NdqqAc9JEZ6mSk k9ybMaa/srHG/EI/XYPw0DrobHg6P5+bYtmsRvw2vP/nsNsD3ZI/EwBBEll2ITxC V5Dn7MljYWI/5kB41Hl5xz6X65WeIN7koRyTXw5mp9tkNrLugqII5hzhwhSlcqJ1 3k9TAN3RbVpWHBcyryDyLbm/+dcbwIJ4v/eJEMIDk8F2SrBGOZs= =LCJH -----END PGP SIGNATURE----- Merge tag 'f2fs-for-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs Pull f2fs updates from Jaegeuk Kim: "In this round, we've tried to address some performance issues in f2fs_checkpoint and direct IO flows. Also, there was a work to enhance the page cache management used for compression. Other than them, we've done typical work including sysfs, code clean-ups, tracepoint, sanity check, in addition to bug fixes on corner cases. Enhancements: - use iomap for direct IO - try to avoid lock contention to improve f2fs_ckpt speed - avoid unnecessary memory allocation in compression flow - POSIX_FADV_DONTNEED drops the page cache containing compression pages - add some sysfs entries (gc_urgent_high_remaining, pending_discard) Bug fixes: - try not to expose unwritten blocks to user by DIO (this was added to avoid merge conflict; another patch is coming to address other missing case) - relax minor error condition for file pinning feature used in Android OTA - fix potential deadlock case in compression flow - should not truncate any block on pinned file In addition, we've done some code clean-ups and tracepoint/sanity check improvement" * tag 'f2fs-for-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (29 commits) f2fs: do not allow partial truncation on pinned file f2fs: remove redunant invalidate compress pages f2fs: Simplify bool conversion f2fs: don't drop compressed page cache in .{invalidate,release}page f2fs: fix to reserve space for IO align feature f2fs: fix to check available space of CP area correctly in update_ckpt_flags() f2fs: support fault injection to f2fs_trylock_op() f2fs: clean up __find_inline_xattr() with __find_xattr() f2fs: fix to do sanity check on last xattr entry in __f2fs_setxattr() f2fs: do not bother checkpoint by f2fs_get_node_info f2fs: avoid down_write on nat_tree_lock during checkpoint f2fs: compress: fix potential deadlock of compress file f2fs: avoid EINVAL by SBI_NEED_FSCK when pinning a file f2fs: add gc_urgent_high_remaining sysfs node f2fs: fix to do sanity check in is_alive() f2fs: fix to avoid panic in is_alive() if metadata is inconsistent f2fs: fix to do sanity check on inode type during garbage collection f2fs: avoid duplicate call of mark_inode_dirty f2fs: show number of pending discard commands f2fs: support POSIX_FADV_DONTNEED drop compressed page cache ...
4432 lines
143 KiB
C
4432 lines
143 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* fs/f2fs/f2fs.h
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*
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* Copyright (c) 2012 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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*/
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#ifndef _LINUX_F2FS_H
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#define _LINUX_F2FS_H
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#include <linux/uio.h>
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#include <linux/types.h>
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#include <linux/page-flags.h>
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#include <linux/buffer_head.h>
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#include <linux/slab.h>
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#include <linux/crc32.h>
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#include <linux/magic.h>
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#include <linux/kobject.h>
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#include <linux/sched.h>
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#include <linux/cred.h>
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#include <linux/vmalloc.h>
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#include <linux/bio.h>
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#include <linux/blkdev.h>
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#include <linux/quotaops.h>
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#include <linux/part_stat.h>
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#include <crypto/hash.h>
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#include <linux/fscrypt.h>
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#include <linux/fsverity.h>
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struct pagevec;
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#ifdef CONFIG_F2FS_CHECK_FS
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#define f2fs_bug_on(sbi, condition) BUG_ON(condition)
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#else
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#define f2fs_bug_on(sbi, condition) \
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do { \
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if (WARN_ON(condition)) \
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set_sbi_flag(sbi, SBI_NEED_FSCK); \
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} while (0)
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#endif
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enum {
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FAULT_KMALLOC,
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FAULT_KVMALLOC,
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FAULT_PAGE_ALLOC,
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FAULT_PAGE_GET,
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FAULT_ALLOC_BIO, /* it's obsolete due to bio_alloc() will never fail */
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FAULT_ALLOC_NID,
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FAULT_ORPHAN,
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FAULT_BLOCK,
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FAULT_DIR_DEPTH,
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FAULT_EVICT_INODE,
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FAULT_TRUNCATE,
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FAULT_READ_IO,
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FAULT_CHECKPOINT,
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FAULT_DISCARD,
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FAULT_WRITE_IO,
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FAULT_SLAB_ALLOC,
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FAULT_DQUOT_INIT,
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FAULT_LOCK_OP,
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FAULT_MAX,
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};
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#ifdef CONFIG_F2FS_FAULT_INJECTION
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#define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
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struct f2fs_fault_info {
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atomic_t inject_ops;
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unsigned int inject_rate;
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unsigned int inject_type;
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};
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extern const char *f2fs_fault_name[FAULT_MAX];
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#define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
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#endif
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/*
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* For mount options
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*/
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#define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
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#define F2FS_MOUNT_DISCARD 0x00000004
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#define F2FS_MOUNT_NOHEAP 0x00000008
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#define F2FS_MOUNT_XATTR_USER 0x00000010
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#define F2FS_MOUNT_POSIX_ACL 0x00000020
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#define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
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#define F2FS_MOUNT_INLINE_XATTR 0x00000080
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#define F2FS_MOUNT_INLINE_DATA 0x00000100
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#define F2FS_MOUNT_INLINE_DENTRY 0x00000200
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#define F2FS_MOUNT_FLUSH_MERGE 0x00000400
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#define F2FS_MOUNT_NOBARRIER 0x00000800
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#define F2FS_MOUNT_FASTBOOT 0x00001000
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#define F2FS_MOUNT_EXTENT_CACHE 0x00002000
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#define F2FS_MOUNT_DATA_FLUSH 0x00008000
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#define F2FS_MOUNT_FAULT_INJECTION 0x00010000
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#define F2FS_MOUNT_USRQUOTA 0x00080000
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#define F2FS_MOUNT_GRPQUOTA 0x00100000
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#define F2FS_MOUNT_PRJQUOTA 0x00200000
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#define F2FS_MOUNT_QUOTA 0x00400000
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#define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
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#define F2FS_MOUNT_RESERVE_ROOT 0x01000000
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#define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
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#define F2FS_MOUNT_NORECOVERY 0x04000000
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#define F2FS_MOUNT_ATGC 0x08000000
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#define F2FS_MOUNT_MERGE_CHECKPOINT 0x10000000
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#define F2FS_MOUNT_GC_MERGE 0x20000000
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#define F2FS_MOUNT_COMPRESS_CACHE 0x40000000
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#define F2FS_OPTION(sbi) ((sbi)->mount_opt)
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#define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
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#define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
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#define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
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#define ver_after(a, b) (typecheck(unsigned long long, a) && \
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typecheck(unsigned long long, b) && \
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((long long)((a) - (b)) > 0))
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typedef u32 block_t; /*
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* should not change u32, since it is the on-disk block
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* address format, __le32.
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*/
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typedef u32 nid_t;
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#define COMPRESS_EXT_NUM 16
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struct f2fs_mount_info {
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unsigned int opt;
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int write_io_size_bits; /* Write IO size bits */
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block_t root_reserved_blocks; /* root reserved blocks */
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kuid_t s_resuid; /* reserved blocks for uid */
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kgid_t s_resgid; /* reserved blocks for gid */
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int active_logs; /* # of active logs */
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int inline_xattr_size; /* inline xattr size */
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#ifdef CONFIG_F2FS_FAULT_INJECTION
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struct f2fs_fault_info fault_info; /* For fault injection */
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#endif
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#ifdef CONFIG_QUOTA
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/* Names of quota files with journalled quota */
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char *s_qf_names[MAXQUOTAS];
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int s_jquota_fmt; /* Format of quota to use */
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#endif
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/* For which write hints are passed down to block layer */
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int whint_mode;
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int alloc_mode; /* segment allocation policy */
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int fsync_mode; /* fsync policy */
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int fs_mode; /* fs mode: LFS or ADAPTIVE */
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int bggc_mode; /* bggc mode: off, on or sync */
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int discard_unit; /*
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* discard command's offset/size should
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* be aligned to this unit: block,
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* segment or section
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*/
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struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */
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block_t unusable_cap_perc; /* percentage for cap */
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block_t unusable_cap; /* Amount of space allowed to be
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* unusable when disabling checkpoint
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*/
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/* For compression */
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unsigned char compress_algorithm; /* algorithm type */
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unsigned char compress_log_size; /* cluster log size */
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unsigned char compress_level; /* compress level */
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bool compress_chksum; /* compressed data chksum */
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unsigned char compress_ext_cnt; /* extension count */
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unsigned char nocompress_ext_cnt; /* nocompress extension count */
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int compress_mode; /* compression mode */
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unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
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unsigned char noextensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
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};
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#define F2FS_FEATURE_ENCRYPT 0x0001
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#define F2FS_FEATURE_BLKZONED 0x0002
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#define F2FS_FEATURE_ATOMIC_WRITE 0x0004
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#define F2FS_FEATURE_EXTRA_ATTR 0x0008
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#define F2FS_FEATURE_PRJQUOTA 0x0010
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#define F2FS_FEATURE_INODE_CHKSUM 0x0020
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#define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
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#define F2FS_FEATURE_QUOTA_INO 0x0080
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#define F2FS_FEATURE_INODE_CRTIME 0x0100
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#define F2FS_FEATURE_LOST_FOUND 0x0200
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#define F2FS_FEATURE_VERITY 0x0400
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#define F2FS_FEATURE_SB_CHKSUM 0x0800
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#define F2FS_FEATURE_CASEFOLD 0x1000
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#define F2FS_FEATURE_COMPRESSION 0x2000
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#define F2FS_FEATURE_RO 0x4000
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#define __F2FS_HAS_FEATURE(raw_super, mask) \
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((raw_super->feature & cpu_to_le32(mask)) != 0)
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#define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
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#define F2FS_SET_FEATURE(sbi, mask) \
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(sbi->raw_super->feature |= cpu_to_le32(mask))
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#define F2FS_CLEAR_FEATURE(sbi, mask) \
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(sbi->raw_super->feature &= ~cpu_to_le32(mask))
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/*
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* Default values for user and/or group using reserved blocks
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*/
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#define F2FS_DEF_RESUID 0
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#define F2FS_DEF_RESGID 0
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/*
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* For checkpoint manager
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*/
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enum {
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NAT_BITMAP,
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SIT_BITMAP
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};
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#define CP_UMOUNT 0x00000001
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#define CP_FASTBOOT 0x00000002
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#define CP_SYNC 0x00000004
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#define CP_RECOVERY 0x00000008
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#define CP_DISCARD 0x00000010
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#define CP_TRIMMED 0x00000020
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#define CP_PAUSE 0x00000040
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#define CP_RESIZE 0x00000080
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#define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
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#define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
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#define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
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#define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
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#define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
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#define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
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#define DEF_CP_INTERVAL 60 /* 60 secs */
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#define DEF_IDLE_INTERVAL 5 /* 5 secs */
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#define DEF_DISABLE_INTERVAL 5 /* 5 secs */
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#define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
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#define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
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struct cp_control {
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int reason;
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__u64 trim_start;
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__u64 trim_end;
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__u64 trim_minlen;
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};
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/*
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* indicate meta/data type
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*/
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enum {
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META_CP,
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META_NAT,
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META_SIT,
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META_SSA,
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META_MAX,
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META_POR,
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DATA_GENERIC, /* check range only */
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DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
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DATA_GENERIC_ENHANCE_READ, /*
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* strong check on range and segment
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* bitmap but no warning due to race
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* condition of read on truncated area
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* by extent_cache
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*/
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META_GENERIC,
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};
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/* for the list of ino */
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enum {
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ORPHAN_INO, /* for orphan ino list */
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APPEND_INO, /* for append ino list */
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UPDATE_INO, /* for update ino list */
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TRANS_DIR_INO, /* for trasactions dir ino list */
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FLUSH_INO, /* for multiple device flushing */
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MAX_INO_ENTRY, /* max. list */
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};
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struct ino_entry {
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struct list_head list; /* list head */
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nid_t ino; /* inode number */
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unsigned int dirty_device; /* dirty device bitmap */
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};
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/* for the list of inodes to be GCed */
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struct inode_entry {
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struct list_head list; /* list head */
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struct inode *inode; /* vfs inode pointer */
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};
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struct fsync_node_entry {
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struct list_head list; /* list head */
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struct page *page; /* warm node page pointer */
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unsigned int seq_id; /* sequence id */
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};
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struct ckpt_req {
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struct completion wait; /* completion for checkpoint done */
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struct llist_node llnode; /* llist_node to be linked in wait queue */
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int ret; /* return code of checkpoint */
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ktime_t queue_time; /* request queued time */
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};
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struct ckpt_req_control {
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struct task_struct *f2fs_issue_ckpt; /* checkpoint task */
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int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */
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wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */
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atomic_t issued_ckpt; /* # of actually issued ckpts */
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atomic_t total_ckpt; /* # of total ckpts */
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atomic_t queued_ckpt; /* # of queued ckpts */
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struct llist_head issue_list; /* list for command issue */
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spinlock_t stat_lock; /* lock for below checkpoint time stats */
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unsigned int cur_time; /* cur wait time in msec for currently issued checkpoint */
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unsigned int peak_time; /* peak wait time in msec until now */
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};
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/* for the bitmap indicate blocks to be discarded */
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struct discard_entry {
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struct list_head list; /* list head */
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block_t start_blkaddr; /* start blockaddr of current segment */
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unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
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};
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/* default discard granularity of inner discard thread, unit: block count */
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#define DEFAULT_DISCARD_GRANULARITY 16
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/* max discard pend list number */
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#define MAX_PLIST_NUM 512
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#define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
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(MAX_PLIST_NUM - 1) : ((blk_num) - 1))
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enum {
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D_PREP, /* initial */
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D_PARTIAL, /* partially submitted */
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D_SUBMIT, /* all submitted */
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D_DONE, /* finished */
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};
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struct discard_info {
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block_t lstart; /* logical start address */
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block_t len; /* length */
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block_t start; /* actual start address in dev */
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};
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struct discard_cmd {
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struct rb_node rb_node; /* rb node located in rb-tree */
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union {
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struct {
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block_t lstart; /* logical start address */
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block_t len; /* length */
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block_t start; /* actual start address in dev */
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};
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struct discard_info di; /* discard info */
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};
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struct list_head list; /* command list */
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struct completion wait; /* compleation */
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struct block_device *bdev; /* bdev */
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unsigned short ref; /* reference count */
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unsigned char state; /* state */
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unsigned char queued; /* queued discard */
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int error; /* bio error */
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spinlock_t lock; /* for state/bio_ref updating */
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unsigned short bio_ref; /* bio reference count */
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};
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enum {
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DPOLICY_BG,
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DPOLICY_FORCE,
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DPOLICY_FSTRIM,
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DPOLICY_UMOUNT,
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MAX_DPOLICY,
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};
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struct discard_policy {
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int type; /* type of discard */
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unsigned int min_interval; /* used for candidates exist */
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unsigned int mid_interval; /* used for device busy */
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unsigned int max_interval; /* used for candidates not exist */
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unsigned int max_requests; /* # of discards issued per round */
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unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
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bool io_aware; /* issue discard in idle time */
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bool sync; /* submit discard with REQ_SYNC flag */
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bool ordered; /* issue discard by lba order */
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bool timeout; /* discard timeout for put_super */
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unsigned int granularity; /* discard granularity */
|
|
};
|
|
|
|
struct discard_cmd_control {
|
|
struct task_struct *f2fs_issue_discard; /* discard thread */
|
|
struct list_head entry_list; /* 4KB discard entry list */
|
|
struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
|
|
struct list_head wait_list; /* store on-flushing entries */
|
|
struct list_head fstrim_list; /* in-flight discard from fstrim */
|
|
wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
|
|
unsigned int discard_wake; /* to wake up discard thread */
|
|
struct mutex cmd_lock;
|
|
unsigned int nr_discards; /* # of discards in the list */
|
|
unsigned int max_discards; /* max. discards to be issued */
|
|
unsigned int discard_granularity; /* discard granularity */
|
|
unsigned int undiscard_blks; /* # of undiscard blocks */
|
|
unsigned int next_pos; /* next discard position */
|
|
atomic_t issued_discard; /* # of issued discard */
|
|
atomic_t queued_discard; /* # of queued discard */
|
|
atomic_t discard_cmd_cnt; /* # of cached cmd count */
|
|
struct rb_root_cached root; /* root of discard rb-tree */
|
|
bool rbtree_check; /* config for consistence check */
|
|
};
|
|
|
|
/* for the list of fsync inodes, used only during recovery */
|
|
struct fsync_inode_entry {
|
|
struct list_head list; /* list head */
|
|
struct inode *inode; /* vfs inode pointer */
|
|
block_t blkaddr; /* block address locating the last fsync */
|
|
block_t last_dentry; /* block address locating the last dentry */
|
|
};
|
|
|
|
#define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
|
|
#define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
|
|
|
|
#define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
|
|
#define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
|
|
#define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
|
|
#define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
|
|
|
|
#define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
|
|
#define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
|
|
|
|
static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
|
|
{
|
|
int before = nats_in_cursum(journal);
|
|
|
|
journal->n_nats = cpu_to_le16(before + i);
|
|
return before;
|
|
}
|
|
|
|
static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
|
|
{
|
|
int before = sits_in_cursum(journal);
|
|
|
|
journal->n_sits = cpu_to_le16(before + i);
|
|
return before;
|
|
}
|
|
|
|
static inline bool __has_cursum_space(struct f2fs_journal *journal,
|
|
int size, int type)
|
|
{
|
|
if (type == NAT_JOURNAL)
|
|
return size <= MAX_NAT_JENTRIES(journal);
|
|
return size <= MAX_SIT_JENTRIES(journal);
|
|
}
|
|
|
|
/* for inline stuff */
|
|
#define DEF_INLINE_RESERVED_SIZE 1
|
|
static inline int get_extra_isize(struct inode *inode);
|
|
static inline int get_inline_xattr_addrs(struct inode *inode);
|
|
#define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
|
|
(CUR_ADDRS_PER_INODE(inode) - \
|
|
get_inline_xattr_addrs(inode) - \
|
|
DEF_INLINE_RESERVED_SIZE))
|
|
|
|
/* for inline dir */
|
|
#define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
|
|
((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
|
|
BITS_PER_BYTE + 1))
|
|
#define INLINE_DENTRY_BITMAP_SIZE(inode) \
|
|
DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
|
|
#define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
|
|
((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
|
|
NR_INLINE_DENTRY(inode) + \
|
|
INLINE_DENTRY_BITMAP_SIZE(inode)))
|
|
|
|
/*
|
|
* For INODE and NODE manager
|
|
*/
|
|
/* for directory operations */
|
|
|
|
struct f2fs_filename {
|
|
/*
|
|
* The filename the user specified. This is NULL for some
|
|
* filesystem-internal operations, e.g. converting an inline directory
|
|
* to a non-inline one, or roll-forward recovering an encrypted dentry.
|
|
*/
|
|
const struct qstr *usr_fname;
|
|
|
|
/*
|
|
* The on-disk filename. For encrypted directories, this is encrypted.
|
|
* This may be NULL for lookups in an encrypted dir without the key.
|
|
*/
|
|
struct fscrypt_str disk_name;
|
|
|
|
/* The dirhash of this filename */
|
|
f2fs_hash_t hash;
|
|
|
|
#ifdef CONFIG_FS_ENCRYPTION
|
|
/*
|
|
* For lookups in encrypted directories: either the buffer backing
|
|
* disk_name, or a buffer that holds the decoded no-key name.
|
|
*/
|
|
struct fscrypt_str crypto_buf;
|
|
#endif
|
|
#ifdef CONFIG_UNICODE
|
|
/*
|
|
* For casefolded directories: the casefolded name, but it's left NULL
|
|
* if the original name is not valid Unicode, if the directory is both
|
|
* casefolded and encrypted and its encryption key is unavailable, or if
|
|
* the filesystem is doing an internal operation where usr_fname is also
|
|
* NULL. In all these cases we fall back to treating the name as an
|
|
* opaque byte sequence.
|
|
*/
|
|
struct fscrypt_str cf_name;
|
|
#endif
|
|
};
|
|
|
|
struct f2fs_dentry_ptr {
|
|
struct inode *inode;
|
|
void *bitmap;
|
|
struct f2fs_dir_entry *dentry;
|
|
__u8 (*filename)[F2FS_SLOT_LEN];
|
|
int max;
|
|
int nr_bitmap;
|
|
};
|
|
|
|
static inline void make_dentry_ptr_block(struct inode *inode,
|
|
struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
|
|
{
|
|
d->inode = inode;
|
|
d->max = NR_DENTRY_IN_BLOCK;
|
|
d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
|
|
d->bitmap = t->dentry_bitmap;
|
|
d->dentry = t->dentry;
|
|
d->filename = t->filename;
|
|
}
|
|
|
|
static inline void make_dentry_ptr_inline(struct inode *inode,
|
|
struct f2fs_dentry_ptr *d, void *t)
|
|
{
|
|
int entry_cnt = NR_INLINE_DENTRY(inode);
|
|
int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
|
|
int reserved_size = INLINE_RESERVED_SIZE(inode);
|
|
|
|
d->inode = inode;
|
|
d->max = entry_cnt;
|
|
d->nr_bitmap = bitmap_size;
|
|
d->bitmap = t;
|
|
d->dentry = t + bitmap_size + reserved_size;
|
|
d->filename = t + bitmap_size + reserved_size +
|
|
SIZE_OF_DIR_ENTRY * entry_cnt;
|
|
}
|
|
|
|
/*
|
|
* XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
|
|
* as its node offset to distinguish from index node blocks.
|
|
* But some bits are used to mark the node block.
|
|
*/
|
|
#define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
|
|
>> OFFSET_BIT_SHIFT)
|
|
enum {
|
|
ALLOC_NODE, /* allocate a new node page if needed */
|
|
LOOKUP_NODE, /* look up a node without readahead */
|
|
LOOKUP_NODE_RA, /*
|
|
* look up a node with readahead called
|
|
* by get_data_block.
|
|
*/
|
|
};
|
|
|
|
#define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO or flush count */
|
|
|
|
/* congestion wait timeout value, default: 20ms */
|
|
#define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20))
|
|
|
|
/* maximum retry quota flush count */
|
|
#define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
|
|
|
|
#define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
|
|
|
|
#define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
|
|
|
|
/* dirty segments threshold for triggering CP */
|
|
#define DEFAULT_DIRTY_THRESHOLD 4
|
|
|
|
/* for in-memory extent cache entry */
|
|
#define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
|
|
|
|
/* number of extent info in extent cache we try to shrink */
|
|
#define EXTENT_CACHE_SHRINK_NUMBER 128
|
|
|
|
struct rb_entry {
|
|
struct rb_node rb_node; /* rb node located in rb-tree */
|
|
union {
|
|
struct {
|
|
unsigned int ofs; /* start offset of the entry */
|
|
unsigned int len; /* length of the entry */
|
|
};
|
|
unsigned long long key; /* 64-bits key */
|
|
} __packed;
|
|
};
|
|
|
|
struct extent_info {
|
|
unsigned int fofs; /* start offset in a file */
|
|
unsigned int len; /* length of the extent */
|
|
u32 blk; /* start block address of the extent */
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION
|
|
unsigned int c_len; /* physical extent length of compressed blocks */
|
|
#endif
|
|
};
|
|
|
|
struct extent_node {
|
|
struct rb_node rb_node; /* rb node located in rb-tree */
|
|
struct extent_info ei; /* extent info */
|
|
struct list_head list; /* node in global extent list of sbi */
|
|
struct extent_tree *et; /* extent tree pointer */
|
|
};
|
|
|
|
struct extent_tree {
|
|
nid_t ino; /* inode number */
|
|
struct rb_root_cached root; /* root of extent info rb-tree */
|
|
struct extent_node *cached_en; /* recently accessed extent node */
|
|
struct extent_info largest; /* largested extent info */
|
|
struct list_head list; /* to be used by sbi->zombie_list */
|
|
rwlock_t lock; /* protect extent info rb-tree */
|
|
atomic_t node_cnt; /* # of extent node in rb-tree*/
|
|
bool largest_updated; /* largest extent updated */
|
|
};
|
|
|
|
/*
|
|
* This structure is taken from ext4_map_blocks.
|
|
*
|
|
* Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
|
|
*/
|
|
#define F2FS_MAP_NEW (1 << BH_New)
|
|
#define F2FS_MAP_MAPPED (1 << BH_Mapped)
|
|
#define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
|
|
#define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
|
|
F2FS_MAP_UNWRITTEN)
|
|
|
|
struct f2fs_map_blocks {
|
|
struct block_device *m_bdev; /* for multi-device dio */
|
|
block_t m_pblk;
|
|
block_t m_lblk;
|
|
unsigned int m_len;
|
|
unsigned int m_flags;
|
|
pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
|
|
pgoff_t *m_next_extent; /* point to next possible extent */
|
|
int m_seg_type;
|
|
bool m_may_create; /* indicate it is from write path */
|
|
bool m_multidev_dio; /* indicate it allows multi-device dio */
|
|
};
|
|
|
|
/* for flag in get_data_block */
|
|
enum {
|
|
F2FS_GET_BLOCK_DEFAULT,
|
|
F2FS_GET_BLOCK_FIEMAP,
|
|
F2FS_GET_BLOCK_BMAP,
|
|
F2FS_GET_BLOCK_DIO,
|
|
F2FS_GET_BLOCK_PRE_DIO,
|
|
F2FS_GET_BLOCK_PRE_AIO,
|
|
F2FS_GET_BLOCK_PRECACHE,
|
|
};
|
|
|
|
/*
|
|
* i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
|
|
*/
|
|
#define FADVISE_COLD_BIT 0x01
|
|
#define FADVISE_LOST_PINO_BIT 0x02
|
|
#define FADVISE_ENCRYPT_BIT 0x04
|
|
#define FADVISE_ENC_NAME_BIT 0x08
|
|
#define FADVISE_KEEP_SIZE_BIT 0x10
|
|
#define FADVISE_HOT_BIT 0x20
|
|
#define FADVISE_VERITY_BIT 0x40
|
|
#define FADVISE_TRUNC_BIT 0x80
|
|
|
|
#define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
|
|
|
|
#define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
|
|
#define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
|
|
#define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
|
|
|
|
#define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
|
|
#define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
|
|
#define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
|
|
|
|
#define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
|
|
#define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
|
|
|
|
#define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
|
|
#define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
|
|
|
|
#define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
|
|
#define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
|
|
|
|
#define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
|
|
#define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
|
|
#define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
|
|
|
|
#define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
|
|
#define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
|
|
|
|
#define file_should_truncate(inode) is_file(inode, FADVISE_TRUNC_BIT)
|
|
#define file_need_truncate(inode) set_file(inode, FADVISE_TRUNC_BIT)
|
|
#define file_dont_truncate(inode) clear_file(inode, FADVISE_TRUNC_BIT)
|
|
|
|
#define DEF_DIR_LEVEL 0
|
|
|
|
enum {
|
|
GC_FAILURE_PIN,
|
|
GC_FAILURE_ATOMIC,
|
|
MAX_GC_FAILURE
|
|
};
|
|
|
|
/* used for f2fs_inode_info->flags */
|
|
enum {
|
|
FI_NEW_INODE, /* indicate newly allocated inode */
|
|
FI_DIRTY_INODE, /* indicate inode is dirty or not */
|
|
FI_AUTO_RECOVER, /* indicate inode is recoverable */
|
|
FI_DIRTY_DIR, /* indicate directory has dirty pages */
|
|
FI_INC_LINK, /* need to increment i_nlink */
|
|
FI_ACL_MODE, /* indicate acl mode */
|
|
FI_NO_ALLOC, /* should not allocate any blocks */
|
|
FI_FREE_NID, /* free allocated nide */
|
|
FI_NO_EXTENT, /* not to use the extent cache */
|
|
FI_INLINE_XATTR, /* used for inline xattr */
|
|
FI_INLINE_DATA, /* used for inline data*/
|
|
FI_INLINE_DENTRY, /* used for inline dentry */
|
|
FI_APPEND_WRITE, /* inode has appended data */
|
|
FI_UPDATE_WRITE, /* inode has in-place-update data */
|
|
FI_NEED_IPU, /* used for ipu per file */
|
|
FI_ATOMIC_FILE, /* indicate atomic file */
|
|
FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
|
|
FI_VOLATILE_FILE, /* indicate volatile file */
|
|
FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
|
|
FI_DROP_CACHE, /* drop dirty page cache */
|
|
FI_DATA_EXIST, /* indicate data exists */
|
|
FI_INLINE_DOTS, /* indicate inline dot dentries */
|
|
FI_DO_DEFRAG, /* indicate defragment is running */
|
|
FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
|
|
FI_PREALLOCATED_ALL, /* all blocks for write were preallocated */
|
|
FI_HOT_DATA, /* indicate file is hot */
|
|
FI_EXTRA_ATTR, /* indicate file has extra attribute */
|
|
FI_PROJ_INHERIT, /* indicate file inherits projectid */
|
|
FI_PIN_FILE, /* indicate file should not be gced */
|
|
FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
|
|
FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
|
|
FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
|
|
FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */
|
|
FI_MMAP_FILE, /* indicate file was mmapped */
|
|
FI_ENABLE_COMPRESS, /* enable compression in "user" compression mode */
|
|
FI_COMPRESS_RELEASED, /* compressed blocks were released */
|
|
FI_ALIGNED_WRITE, /* enable aligned write */
|
|
FI_MAX, /* max flag, never be used */
|
|
};
|
|
|
|
struct f2fs_inode_info {
|
|
struct inode vfs_inode; /* serve a vfs inode */
|
|
unsigned long i_flags; /* keep an inode flags for ioctl */
|
|
unsigned char i_advise; /* use to give file attribute hints */
|
|
unsigned char i_dir_level; /* use for dentry level for large dir */
|
|
unsigned int i_current_depth; /* only for directory depth */
|
|
/* for gc failure statistic */
|
|
unsigned int i_gc_failures[MAX_GC_FAILURE];
|
|
unsigned int i_pino; /* parent inode number */
|
|
umode_t i_acl_mode; /* keep file acl mode temporarily */
|
|
|
|
/* Use below internally in f2fs*/
|
|
unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */
|
|
struct rw_semaphore i_sem; /* protect fi info */
|
|
atomic_t dirty_pages; /* # of dirty pages */
|
|
f2fs_hash_t chash; /* hash value of given file name */
|
|
unsigned int clevel; /* maximum level of given file name */
|
|
struct task_struct *task; /* lookup and create consistency */
|
|
struct task_struct *cp_task; /* separate cp/wb IO stats*/
|
|
nid_t i_xattr_nid; /* node id that contains xattrs */
|
|
loff_t last_disk_size; /* lastly written file size */
|
|
spinlock_t i_size_lock; /* protect last_disk_size */
|
|
|
|
#ifdef CONFIG_QUOTA
|
|
struct dquot *i_dquot[MAXQUOTAS];
|
|
|
|
/* quota space reservation, managed internally by quota code */
|
|
qsize_t i_reserved_quota;
|
|
#endif
|
|
struct list_head dirty_list; /* dirty list for dirs and files */
|
|
struct list_head gdirty_list; /* linked in global dirty list */
|
|
struct list_head inmem_ilist; /* list for inmem inodes */
|
|
struct list_head inmem_pages; /* inmemory pages managed by f2fs */
|
|
struct task_struct *inmem_task; /* store inmemory task */
|
|
struct mutex inmem_lock; /* lock for inmemory pages */
|
|
struct extent_tree *extent_tree; /* cached extent_tree entry */
|
|
|
|
/* avoid racing between foreground op and gc */
|
|
struct rw_semaphore i_gc_rwsem[2];
|
|
struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
|
|
|
|
int i_extra_isize; /* size of extra space located in i_addr */
|
|
kprojid_t i_projid; /* id for project quota */
|
|
int i_inline_xattr_size; /* inline xattr size */
|
|
struct timespec64 i_crtime; /* inode creation time */
|
|
struct timespec64 i_disk_time[4];/* inode disk times */
|
|
|
|
/* for file compress */
|
|
atomic_t i_compr_blocks; /* # of compressed blocks */
|
|
unsigned char i_compress_algorithm; /* algorithm type */
|
|
unsigned char i_log_cluster_size; /* log of cluster size */
|
|
unsigned char i_compress_level; /* compress level (lz4hc,zstd) */
|
|
unsigned short i_compress_flag; /* compress flag */
|
|
unsigned int i_cluster_size; /* cluster size */
|
|
};
|
|
|
|
static inline void get_extent_info(struct extent_info *ext,
|
|
struct f2fs_extent *i_ext)
|
|
{
|
|
ext->fofs = le32_to_cpu(i_ext->fofs);
|
|
ext->blk = le32_to_cpu(i_ext->blk);
|
|
ext->len = le32_to_cpu(i_ext->len);
|
|
}
|
|
|
|
static inline void set_raw_extent(struct extent_info *ext,
|
|
struct f2fs_extent *i_ext)
|
|
{
|
|
i_ext->fofs = cpu_to_le32(ext->fofs);
|
|
i_ext->blk = cpu_to_le32(ext->blk);
|
|
i_ext->len = cpu_to_le32(ext->len);
|
|
}
|
|
|
|
static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
|
|
u32 blk, unsigned int len)
|
|
{
|
|
ei->fofs = fofs;
|
|
ei->blk = blk;
|
|
ei->len = len;
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION
|
|
ei->c_len = 0;
|
|
#endif
|
|
}
|
|
|
|
static inline bool __is_discard_mergeable(struct discard_info *back,
|
|
struct discard_info *front, unsigned int max_len)
|
|
{
|
|
return (back->lstart + back->len == front->lstart) &&
|
|
(back->len + front->len <= max_len);
|
|
}
|
|
|
|
static inline bool __is_discard_back_mergeable(struct discard_info *cur,
|
|
struct discard_info *back, unsigned int max_len)
|
|
{
|
|
return __is_discard_mergeable(back, cur, max_len);
|
|
}
|
|
|
|
static inline bool __is_discard_front_mergeable(struct discard_info *cur,
|
|
struct discard_info *front, unsigned int max_len)
|
|
{
|
|
return __is_discard_mergeable(cur, front, max_len);
|
|
}
|
|
|
|
static inline bool __is_extent_mergeable(struct extent_info *back,
|
|
struct extent_info *front)
|
|
{
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION
|
|
if (back->c_len && back->len != back->c_len)
|
|
return false;
|
|
if (front->c_len && front->len != front->c_len)
|
|
return false;
|
|
#endif
|
|
return (back->fofs + back->len == front->fofs &&
|
|
back->blk + back->len == front->blk);
|
|
}
|
|
|
|
static inline bool __is_back_mergeable(struct extent_info *cur,
|
|
struct extent_info *back)
|
|
{
|
|
return __is_extent_mergeable(back, cur);
|
|
}
|
|
|
|
static inline bool __is_front_mergeable(struct extent_info *cur,
|
|
struct extent_info *front)
|
|
{
|
|
return __is_extent_mergeable(cur, front);
|
|
}
|
|
|
|
extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
|
|
static inline void __try_update_largest_extent(struct extent_tree *et,
|
|
struct extent_node *en)
|
|
{
|
|
if (en->ei.len > et->largest.len) {
|
|
et->largest = en->ei;
|
|
et->largest_updated = true;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* For free nid management
|
|
*/
|
|
enum nid_state {
|
|
FREE_NID, /* newly added to free nid list */
|
|
PREALLOC_NID, /* it is preallocated */
|
|
MAX_NID_STATE,
|
|
};
|
|
|
|
enum nat_state {
|
|
TOTAL_NAT,
|
|
DIRTY_NAT,
|
|
RECLAIMABLE_NAT,
|
|
MAX_NAT_STATE,
|
|
};
|
|
|
|
struct f2fs_nm_info {
|
|
block_t nat_blkaddr; /* base disk address of NAT */
|
|
nid_t max_nid; /* maximum possible node ids */
|
|
nid_t available_nids; /* # of available node ids */
|
|
nid_t next_scan_nid; /* the next nid to be scanned */
|
|
unsigned int ram_thresh; /* control the memory footprint */
|
|
unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
|
|
unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
|
|
|
|
/* NAT cache management */
|
|
struct radix_tree_root nat_root;/* root of the nat entry cache */
|
|
struct radix_tree_root nat_set_root;/* root of the nat set cache */
|
|
struct rw_semaphore nat_tree_lock; /* protect nat entry tree */
|
|
struct list_head nat_entries; /* cached nat entry list (clean) */
|
|
spinlock_t nat_list_lock; /* protect clean nat entry list */
|
|
unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */
|
|
unsigned int nat_blocks; /* # of nat blocks */
|
|
|
|
/* free node ids management */
|
|
struct radix_tree_root free_nid_root;/* root of the free_nid cache */
|
|
struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
|
|
unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
|
|
spinlock_t nid_list_lock; /* protect nid lists ops */
|
|
struct mutex build_lock; /* lock for build free nids */
|
|
unsigned char **free_nid_bitmap;
|
|
unsigned char *nat_block_bitmap;
|
|
unsigned short *free_nid_count; /* free nid count of NAT block */
|
|
|
|
/* for checkpoint */
|
|
char *nat_bitmap; /* NAT bitmap pointer */
|
|
|
|
unsigned int nat_bits_blocks; /* # of nat bits blocks */
|
|
unsigned char *nat_bits; /* NAT bits blocks */
|
|
unsigned char *full_nat_bits; /* full NAT pages */
|
|
unsigned char *empty_nat_bits; /* empty NAT pages */
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
|
char *nat_bitmap_mir; /* NAT bitmap mirror */
|
|
#endif
|
|
int bitmap_size; /* bitmap size */
|
|
};
|
|
|
|
/*
|
|
* this structure is used as one of function parameters.
|
|
* all the information are dedicated to a given direct node block determined
|
|
* by the data offset in a file.
|
|
*/
|
|
struct dnode_of_data {
|
|
struct inode *inode; /* vfs inode pointer */
|
|
struct page *inode_page; /* its inode page, NULL is possible */
|
|
struct page *node_page; /* cached direct node page */
|
|
nid_t nid; /* node id of the direct node block */
|
|
unsigned int ofs_in_node; /* data offset in the node page */
|
|
bool inode_page_locked; /* inode page is locked or not */
|
|
bool node_changed; /* is node block changed */
|
|
char cur_level; /* level of hole node page */
|
|
char max_level; /* level of current page located */
|
|
block_t data_blkaddr; /* block address of the node block */
|
|
};
|
|
|
|
static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
|
|
struct page *ipage, struct page *npage, nid_t nid)
|
|
{
|
|
memset(dn, 0, sizeof(*dn));
|
|
dn->inode = inode;
|
|
dn->inode_page = ipage;
|
|
dn->node_page = npage;
|
|
dn->nid = nid;
|
|
}
|
|
|
|
/*
|
|
* For SIT manager
|
|
*
|
|
* By default, there are 6 active log areas across the whole main area.
|
|
* When considering hot and cold data separation to reduce cleaning overhead,
|
|
* we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
|
|
* respectively.
|
|
* In the current design, you should not change the numbers intentionally.
|
|
* Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
|
|
* logs individually according to the underlying devices. (default: 6)
|
|
* Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
|
|
* data and 8 for node logs.
|
|
*/
|
|
#define NR_CURSEG_DATA_TYPE (3)
|
|
#define NR_CURSEG_NODE_TYPE (3)
|
|
#define NR_CURSEG_INMEM_TYPE (2)
|
|
#define NR_CURSEG_RO_TYPE (2)
|
|
#define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
|
|
#define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE)
|
|
|
|
enum {
|
|
CURSEG_HOT_DATA = 0, /* directory entry blocks */
|
|
CURSEG_WARM_DATA, /* data blocks */
|
|
CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
|
|
CURSEG_HOT_NODE, /* direct node blocks of directory files */
|
|
CURSEG_WARM_NODE, /* direct node blocks of normal files */
|
|
CURSEG_COLD_NODE, /* indirect node blocks */
|
|
NR_PERSISTENT_LOG, /* number of persistent log */
|
|
CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG,
|
|
/* pinned file that needs consecutive block address */
|
|
CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */
|
|
NO_CHECK_TYPE, /* number of persistent & inmem log */
|
|
};
|
|
|
|
struct flush_cmd {
|
|
struct completion wait;
|
|
struct llist_node llnode;
|
|
nid_t ino;
|
|
int ret;
|
|
};
|
|
|
|
struct flush_cmd_control {
|
|
struct task_struct *f2fs_issue_flush; /* flush thread */
|
|
wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
|
|
atomic_t issued_flush; /* # of issued flushes */
|
|
atomic_t queued_flush; /* # of queued flushes */
|
|
struct llist_head issue_list; /* list for command issue */
|
|
struct llist_node *dispatch_list; /* list for command dispatch */
|
|
};
|
|
|
|
struct f2fs_sm_info {
|
|
struct sit_info *sit_info; /* whole segment information */
|
|
struct free_segmap_info *free_info; /* free segment information */
|
|
struct dirty_seglist_info *dirty_info; /* dirty segment information */
|
|
struct curseg_info *curseg_array; /* active segment information */
|
|
|
|
struct rw_semaphore curseg_lock; /* for preventing curseg change */
|
|
|
|
block_t seg0_blkaddr; /* block address of 0'th segment */
|
|
block_t main_blkaddr; /* start block address of main area */
|
|
block_t ssa_blkaddr; /* start block address of SSA area */
|
|
|
|
unsigned int segment_count; /* total # of segments */
|
|
unsigned int main_segments; /* # of segments in main area */
|
|
unsigned int reserved_segments; /* # of reserved segments */
|
|
unsigned int additional_reserved_segments;/* reserved segs for IO align feature */
|
|
unsigned int ovp_segments; /* # of overprovision segments */
|
|
|
|
/* a threshold to reclaim prefree segments */
|
|
unsigned int rec_prefree_segments;
|
|
|
|
/* for batched trimming */
|
|
unsigned int trim_sections; /* # of sections to trim */
|
|
|
|
struct list_head sit_entry_set; /* sit entry set list */
|
|
|
|
unsigned int ipu_policy; /* in-place-update policy */
|
|
unsigned int min_ipu_util; /* in-place-update threshold */
|
|
unsigned int min_fsync_blocks; /* threshold for fsync */
|
|
unsigned int min_seq_blocks; /* threshold for sequential blocks */
|
|
unsigned int min_hot_blocks; /* threshold for hot block allocation */
|
|
unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
|
|
|
|
/* for flush command control */
|
|
struct flush_cmd_control *fcc_info;
|
|
|
|
/* for discard command control */
|
|
struct discard_cmd_control *dcc_info;
|
|
};
|
|
|
|
/*
|
|
* For superblock
|
|
*/
|
|
/*
|
|
* COUNT_TYPE for monitoring
|
|
*
|
|
* f2fs monitors the number of several block types such as on-writeback,
|
|
* dirty dentry blocks, dirty node blocks, and dirty meta blocks.
|
|
*/
|
|
#define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
|
|
enum count_type {
|
|
F2FS_DIRTY_DENTS,
|
|
F2FS_DIRTY_DATA,
|
|
F2FS_DIRTY_QDATA,
|
|
F2FS_DIRTY_NODES,
|
|
F2FS_DIRTY_META,
|
|
F2FS_INMEM_PAGES,
|
|
F2FS_DIRTY_IMETA,
|
|
F2FS_WB_CP_DATA,
|
|
F2FS_WB_DATA,
|
|
F2FS_RD_DATA,
|
|
F2FS_RD_NODE,
|
|
F2FS_RD_META,
|
|
F2FS_DIO_WRITE,
|
|
F2FS_DIO_READ,
|
|
NR_COUNT_TYPE,
|
|
};
|
|
|
|
/*
|
|
* The below are the page types of bios used in submit_bio().
|
|
* The available types are:
|
|
* DATA User data pages. It operates as async mode.
|
|
* NODE Node pages. It operates as async mode.
|
|
* META FS metadata pages such as SIT, NAT, CP.
|
|
* NR_PAGE_TYPE The number of page types.
|
|
* META_FLUSH Make sure the previous pages are written
|
|
* with waiting the bio's completion
|
|
* ... Only can be used with META.
|
|
*/
|
|
#define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
|
|
enum page_type {
|
|
DATA,
|
|
NODE,
|
|
META,
|
|
NR_PAGE_TYPE,
|
|
META_FLUSH,
|
|
INMEM, /* the below types are used by tracepoints only. */
|
|
INMEM_DROP,
|
|
INMEM_INVALIDATE,
|
|
INMEM_REVOKE,
|
|
IPU,
|
|
OPU,
|
|
};
|
|
|
|
enum temp_type {
|
|
HOT = 0, /* must be zero for meta bio */
|
|
WARM,
|
|
COLD,
|
|
NR_TEMP_TYPE,
|
|
};
|
|
|
|
enum need_lock_type {
|
|
LOCK_REQ = 0,
|
|
LOCK_DONE,
|
|
LOCK_RETRY,
|
|
};
|
|
|
|
enum cp_reason_type {
|
|
CP_NO_NEEDED,
|
|
CP_NON_REGULAR,
|
|
CP_COMPRESSED,
|
|
CP_HARDLINK,
|
|
CP_SB_NEED_CP,
|
|
CP_WRONG_PINO,
|
|
CP_NO_SPC_ROLL,
|
|
CP_NODE_NEED_CP,
|
|
CP_FASTBOOT_MODE,
|
|
CP_SPEC_LOG_NUM,
|
|
CP_RECOVER_DIR,
|
|
};
|
|
|
|
enum iostat_type {
|
|
/* WRITE IO */
|
|
APP_DIRECT_IO, /* app direct write IOs */
|
|
APP_BUFFERED_IO, /* app buffered write IOs */
|
|
APP_WRITE_IO, /* app write IOs */
|
|
APP_MAPPED_IO, /* app mapped IOs */
|
|
FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
|
|
FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
|
|
FS_META_IO, /* meta IOs from kworker/reclaimer */
|
|
FS_GC_DATA_IO, /* data IOs from forground gc */
|
|
FS_GC_NODE_IO, /* node IOs from forground gc */
|
|
FS_CP_DATA_IO, /* data IOs from checkpoint */
|
|
FS_CP_NODE_IO, /* node IOs from checkpoint */
|
|
FS_CP_META_IO, /* meta IOs from checkpoint */
|
|
|
|
/* READ IO */
|
|
APP_DIRECT_READ_IO, /* app direct read IOs */
|
|
APP_BUFFERED_READ_IO, /* app buffered read IOs */
|
|
APP_READ_IO, /* app read IOs */
|
|
APP_MAPPED_READ_IO, /* app mapped read IOs */
|
|
FS_DATA_READ_IO, /* data read IOs */
|
|
FS_GDATA_READ_IO, /* data read IOs from background gc */
|
|
FS_CDATA_READ_IO, /* compressed data read IOs */
|
|
FS_NODE_READ_IO, /* node read IOs */
|
|
FS_META_READ_IO, /* meta read IOs */
|
|
|
|
/* other */
|
|
FS_DISCARD, /* discard */
|
|
NR_IO_TYPE,
|
|
};
|
|
|
|
struct f2fs_io_info {
|
|
struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
|
|
nid_t ino; /* inode number */
|
|
enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
|
|
enum temp_type temp; /* contains HOT/WARM/COLD */
|
|
int op; /* contains REQ_OP_ */
|
|
int op_flags; /* req_flag_bits */
|
|
block_t new_blkaddr; /* new block address to be written */
|
|
block_t old_blkaddr; /* old block address before Cow */
|
|
struct page *page; /* page to be written */
|
|
struct page *encrypted_page; /* encrypted page */
|
|
struct page *compressed_page; /* compressed page */
|
|
struct list_head list; /* serialize IOs */
|
|
bool submitted; /* indicate IO submission */
|
|
int need_lock; /* indicate we need to lock cp_rwsem */
|
|
bool in_list; /* indicate fio is in io_list */
|
|
bool is_por; /* indicate IO is from recovery or not */
|
|
bool retry; /* need to reallocate block address */
|
|
int compr_blocks; /* # of compressed block addresses */
|
|
bool encrypted; /* indicate file is encrypted */
|
|
enum iostat_type io_type; /* io type */
|
|
struct writeback_control *io_wbc; /* writeback control */
|
|
struct bio **bio; /* bio for ipu */
|
|
sector_t *last_block; /* last block number in bio */
|
|
unsigned char version; /* version of the node */
|
|
};
|
|
|
|
struct bio_entry {
|
|
struct bio *bio;
|
|
struct list_head list;
|
|
};
|
|
|
|
#define is_read_io(rw) ((rw) == READ)
|
|
struct f2fs_bio_info {
|
|
struct f2fs_sb_info *sbi; /* f2fs superblock */
|
|
struct bio *bio; /* bios to merge */
|
|
sector_t last_block_in_bio; /* last block number */
|
|
struct f2fs_io_info fio; /* store buffered io info. */
|
|
struct rw_semaphore io_rwsem; /* blocking op for bio */
|
|
spinlock_t io_lock; /* serialize DATA/NODE IOs */
|
|
struct list_head io_list; /* track fios */
|
|
struct list_head bio_list; /* bio entry list head */
|
|
struct rw_semaphore bio_list_lock; /* lock to protect bio entry list */
|
|
};
|
|
|
|
#define FDEV(i) (sbi->devs[i])
|
|
#define RDEV(i) (raw_super->devs[i])
|
|
struct f2fs_dev_info {
|
|
struct block_device *bdev;
|
|
char path[MAX_PATH_LEN];
|
|
unsigned int total_segments;
|
|
block_t start_blk;
|
|
block_t end_blk;
|
|
#ifdef CONFIG_BLK_DEV_ZONED
|
|
unsigned int nr_blkz; /* Total number of zones */
|
|
unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
|
|
block_t *zone_capacity_blocks; /* Array of zone capacity in blks */
|
|
#endif
|
|
};
|
|
|
|
enum inode_type {
|
|
DIR_INODE, /* for dirty dir inode */
|
|
FILE_INODE, /* for dirty regular/symlink inode */
|
|
DIRTY_META, /* for all dirtied inode metadata */
|
|
ATOMIC_FILE, /* for all atomic files */
|
|
NR_INODE_TYPE,
|
|
};
|
|
|
|
/* for inner inode cache management */
|
|
struct inode_management {
|
|
struct radix_tree_root ino_root; /* ino entry array */
|
|
spinlock_t ino_lock; /* for ino entry lock */
|
|
struct list_head ino_list; /* inode list head */
|
|
unsigned long ino_num; /* number of entries */
|
|
};
|
|
|
|
/* for GC_AT */
|
|
struct atgc_management {
|
|
bool atgc_enabled; /* ATGC is enabled or not */
|
|
struct rb_root_cached root; /* root of victim rb-tree */
|
|
struct list_head victim_list; /* linked with all victim entries */
|
|
unsigned int victim_count; /* victim count in rb-tree */
|
|
unsigned int candidate_ratio; /* candidate ratio */
|
|
unsigned int max_candidate_count; /* max candidate count */
|
|
unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */
|
|
unsigned long long age_threshold; /* age threshold */
|
|
};
|
|
|
|
/* For s_flag in struct f2fs_sb_info */
|
|
enum {
|
|
SBI_IS_DIRTY, /* dirty flag for checkpoint */
|
|
SBI_IS_CLOSE, /* specify unmounting */
|
|
SBI_NEED_FSCK, /* need fsck.f2fs to fix */
|
|
SBI_POR_DOING, /* recovery is doing or not */
|
|
SBI_NEED_SB_WRITE, /* need to recover superblock */
|
|
SBI_NEED_CP, /* need to checkpoint */
|
|
SBI_IS_SHUTDOWN, /* shutdown by ioctl */
|
|
SBI_IS_RECOVERED, /* recovered orphan/data */
|
|
SBI_CP_DISABLED, /* CP was disabled last mount */
|
|
SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
|
|
SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
|
|
SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
|
|
SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
|
|
SBI_IS_RESIZEFS, /* resizefs is in process */
|
|
};
|
|
|
|
enum {
|
|
CP_TIME,
|
|
REQ_TIME,
|
|
DISCARD_TIME,
|
|
GC_TIME,
|
|
DISABLE_TIME,
|
|
UMOUNT_DISCARD_TIMEOUT,
|
|
MAX_TIME,
|
|
};
|
|
|
|
enum {
|
|
GC_NORMAL,
|
|
GC_IDLE_CB,
|
|
GC_IDLE_GREEDY,
|
|
GC_IDLE_AT,
|
|
GC_URGENT_HIGH,
|
|
GC_URGENT_LOW,
|
|
MAX_GC_MODE,
|
|
};
|
|
|
|
enum {
|
|
BGGC_MODE_ON, /* background gc is on */
|
|
BGGC_MODE_OFF, /* background gc is off */
|
|
BGGC_MODE_SYNC, /*
|
|
* background gc is on, migrating blocks
|
|
* like foreground gc
|
|
*/
|
|
};
|
|
|
|
enum {
|
|
FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
|
|
FS_MODE_LFS, /* use lfs allocation only */
|
|
FS_MODE_FRAGMENT_SEG, /* segment fragmentation mode */
|
|
FS_MODE_FRAGMENT_BLK, /* block fragmentation mode */
|
|
};
|
|
|
|
enum {
|
|
WHINT_MODE_OFF, /* not pass down write hints */
|
|
WHINT_MODE_USER, /* try to pass down hints given by users */
|
|
WHINT_MODE_FS, /* pass down hints with F2FS policy */
|
|
};
|
|
|
|
enum {
|
|
ALLOC_MODE_DEFAULT, /* stay default */
|
|
ALLOC_MODE_REUSE, /* reuse segments as much as possible */
|
|
};
|
|
|
|
enum fsync_mode {
|
|
FSYNC_MODE_POSIX, /* fsync follows posix semantics */
|
|
FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
|
|
FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
|
|
};
|
|
|
|
enum {
|
|
COMPR_MODE_FS, /*
|
|
* automatically compress compression
|
|
* enabled files
|
|
*/
|
|
COMPR_MODE_USER, /*
|
|
* automatical compression is disabled.
|
|
* user can control the file compression
|
|
* using ioctls
|
|
*/
|
|
};
|
|
|
|
enum {
|
|
DISCARD_UNIT_BLOCK, /* basic discard unit is block */
|
|
DISCARD_UNIT_SEGMENT, /* basic discard unit is segment */
|
|
DISCARD_UNIT_SECTION, /* basic discard unit is section */
|
|
};
|
|
|
|
static inline int f2fs_test_bit(unsigned int nr, char *addr);
|
|
static inline void f2fs_set_bit(unsigned int nr, char *addr);
|
|
static inline void f2fs_clear_bit(unsigned int nr, char *addr);
|
|
|
|
/*
|
|
* Layout of f2fs page.private:
|
|
*
|
|
* Layout A: lowest bit should be 1
|
|
* | bit0 = 1 | bit1 | bit2 | ... | bit MAX | private data .... |
|
|
* bit 0 PAGE_PRIVATE_NOT_POINTER
|
|
* bit 1 PAGE_PRIVATE_ATOMIC_WRITE
|
|
* bit 2 PAGE_PRIVATE_DUMMY_WRITE
|
|
* bit 3 PAGE_PRIVATE_ONGOING_MIGRATION
|
|
* bit 4 PAGE_PRIVATE_INLINE_INODE
|
|
* bit 5 PAGE_PRIVATE_REF_RESOURCE
|
|
* bit 6- f2fs private data
|
|
*
|
|
* Layout B: lowest bit should be 0
|
|
* page.private is a wrapped pointer.
|
|
*/
|
|
enum {
|
|
PAGE_PRIVATE_NOT_POINTER, /* private contains non-pointer data */
|
|
PAGE_PRIVATE_ATOMIC_WRITE, /* data page from atomic write path */
|
|
PAGE_PRIVATE_DUMMY_WRITE, /* data page for padding aligned IO */
|
|
PAGE_PRIVATE_ONGOING_MIGRATION, /* data page which is on-going migrating */
|
|
PAGE_PRIVATE_INLINE_INODE, /* inode page contains inline data */
|
|
PAGE_PRIVATE_REF_RESOURCE, /* dirty page has referenced resources */
|
|
PAGE_PRIVATE_MAX
|
|
};
|
|
|
|
#define PAGE_PRIVATE_GET_FUNC(name, flagname) \
|
|
static inline bool page_private_##name(struct page *page) \
|
|
{ \
|
|
return PagePrivate(page) && \
|
|
test_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)) && \
|
|
test_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
|
|
}
|
|
|
|
#define PAGE_PRIVATE_SET_FUNC(name, flagname) \
|
|
static inline void set_page_private_##name(struct page *page) \
|
|
{ \
|
|
if (!PagePrivate(page)) { \
|
|
get_page(page); \
|
|
SetPagePrivate(page); \
|
|
set_page_private(page, 0); \
|
|
} \
|
|
set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)); \
|
|
set_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
|
|
}
|
|
|
|
#define PAGE_PRIVATE_CLEAR_FUNC(name, flagname) \
|
|
static inline void clear_page_private_##name(struct page *page) \
|
|
{ \
|
|
clear_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
|
|
if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) { \
|
|
set_page_private(page, 0); \
|
|
if (PagePrivate(page)) { \
|
|
ClearPagePrivate(page); \
|
|
put_page(page); \
|
|
}\
|
|
} \
|
|
}
|
|
|
|
PAGE_PRIVATE_GET_FUNC(nonpointer, NOT_POINTER);
|
|
PAGE_PRIVATE_GET_FUNC(reference, REF_RESOURCE);
|
|
PAGE_PRIVATE_GET_FUNC(inline, INLINE_INODE);
|
|
PAGE_PRIVATE_GET_FUNC(gcing, ONGOING_MIGRATION);
|
|
PAGE_PRIVATE_GET_FUNC(atomic, ATOMIC_WRITE);
|
|
PAGE_PRIVATE_GET_FUNC(dummy, DUMMY_WRITE);
|
|
|
|
PAGE_PRIVATE_SET_FUNC(reference, REF_RESOURCE);
|
|
PAGE_PRIVATE_SET_FUNC(inline, INLINE_INODE);
|
|
PAGE_PRIVATE_SET_FUNC(gcing, ONGOING_MIGRATION);
|
|
PAGE_PRIVATE_SET_FUNC(atomic, ATOMIC_WRITE);
|
|
PAGE_PRIVATE_SET_FUNC(dummy, DUMMY_WRITE);
|
|
|
|
PAGE_PRIVATE_CLEAR_FUNC(reference, REF_RESOURCE);
|
|
PAGE_PRIVATE_CLEAR_FUNC(inline, INLINE_INODE);
|
|
PAGE_PRIVATE_CLEAR_FUNC(gcing, ONGOING_MIGRATION);
|
|
PAGE_PRIVATE_CLEAR_FUNC(atomic, ATOMIC_WRITE);
|
|
PAGE_PRIVATE_CLEAR_FUNC(dummy, DUMMY_WRITE);
|
|
|
|
static inline unsigned long get_page_private_data(struct page *page)
|
|
{
|
|
unsigned long data = page_private(page);
|
|
|
|
if (!test_bit(PAGE_PRIVATE_NOT_POINTER, &data))
|
|
return 0;
|
|
return data >> PAGE_PRIVATE_MAX;
|
|
}
|
|
|
|
static inline void set_page_private_data(struct page *page, unsigned long data)
|
|
{
|
|
if (!PagePrivate(page)) {
|
|
get_page(page);
|
|
SetPagePrivate(page);
|
|
set_page_private(page, 0);
|
|
}
|
|
set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page));
|
|
page_private(page) |= data << PAGE_PRIVATE_MAX;
|
|
}
|
|
|
|
static inline void clear_page_private_data(struct page *page)
|
|
{
|
|
page_private(page) &= (1 << PAGE_PRIVATE_MAX) - 1;
|
|
if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) {
|
|
set_page_private(page, 0);
|
|
if (PagePrivate(page)) {
|
|
ClearPagePrivate(page);
|
|
put_page(page);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* For compression */
|
|
enum compress_algorithm_type {
|
|
COMPRESS_LZO,
|
|
COMPRESS_LZ4,
|
|
COMPRESS_ZSTD,
|
|
COMPRESS_LZORLE,
|
|
COMPRESS_MAX,
|
|
};
|
|
|
|
enum compress_flag {
|
|
COMPRESS_CHKSUM,
|
|
COMPRESS_MAX_FLAG,
|
|
};
|
|
|
|
#define COMPRESS_WATERMARK 20
|
|
#define COMPRESS_PERCENT 20
|
|
|
|
#define COMPRESS_DATA_RESERVED_SIZE 4
|
|
struct compress_data {
|
|
__le32 clen; /* compressed data size */
|
|
__le32 chksum; /* compressed data chksum */
|
|
__le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */
|
|
u8 cdata[]; /* compressed data */
|
|
};
|
|
|
|
#define COMPRESS_HEADER_SIZE (sizeof(struct compress_data))
|
|
|
|
#define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000
|
|
|
|
#define COMPRESS_LEVEL_OFFSET 8
|
|
|
|
/* compress context */
|
|
struct compress_ctx {
|
|
struct inode *inode; /* inode the context belong to */
|
|
pgoff_t cluster_idx; /* cluster index number */
|
|
unsigned int cluster_size; /* page count in cluster */
|
|
unsigned int log_cluster_size; /* log of cluster size */
|
|
struct page **rpages; /* pages store raw data in cluster */
|
|
unsigned int nr_rpages; /* total page number in rpages */
|
|
struct page **cpages; /* pages store compressed data in cluster */
|
|
unsigned int nr_cpages; /* total page number in cpages */
|
|
unsigned int valid_nr_cpages; /* valid page number in cpages */
|
|
void *rbuf; /* virtual mapped address on rpages */
|
|
struct compress_data *cbuf; /* virtual mapped address on cpages */
|
|
size_t rlen; /* valid data length in rbuf */
|
|
size_t clen; /* valid data length in cbuf */
|
|
void *private; /* payload buffer for specified compression algorithm */
|
|
void *private2; /* extra payload buffer */
|
|
};
|
|
|
|
/* compress context for write IO path */
|
|
struct compress_io_ctx {
|
|
u32 magic; /* magic number to indicate page is compressed */
|
|
struct inode *inode; /* inode the context belong to */
|
|
struct page **rpages; /* pages store raw data in cluster */
|
|
unsigned int nr_rpages; /* total page number in rpages */
|
|
atomic_t pending_pages; /* in-flight compressed page count */
|
|
};
|
|
|
|
/* Context for decompressing one cluster on the read IO path */
|
|
struct decompress_io_ctx {
|
|
u32 magic; /* magic number to indicate page is compressed */
|
|
struct inode *inode; /* inode the context belong to */
|
|
pgoff_t cluster_idx; /* cluster index number */
|
|
unsigned int cluster_size; /* page count in cluster */
|
|
unsigned int log_cluster_size; /* log of cluster size */
|
|
struct page **rpages; /* pages store raw data in cluster */
|
|
unsigned int nr_rpages; /* total page number in rpages */
|
|
struct page **cpages; /* pages store compressed data in cluster */
|
|
unsigned int nr_cpages; /* total page number in cpages */
|
|
struct page **tpages; /* temp pages to pad holes in cluster */
|
|
void *rbuf; /* virtual mapped address on rpages */
|
|
struct compress_data *cbuf; /* virtual mapped address on cpages */
|
|
size_t rlen; /* valid data length in rbuf */
|
|
size_t clen; /* valid data length in cbuf */
|
|
|
|
/*
|
|
* The number of compressed pages remaining to be read in this cluster.
|
|
* This is initially nr_cpages. It is decremented by 1 each time a page
|
|
* has been read (or failed to be read). When it reaches 0, the cluster
|
|
* is decompressed (or an error is reported).
|
|
*
|
|
* If an error occurs before all the pages have been submitted for I/O,
|
|
* then this will never reach 0. In this case the I/O submitter is
|
|
* responsible for calling f2fs_decompress_end_io() instead.
|
|
*/
|
|
atomic_t remaining_pages;
|
|
|
|
/*
|
|
* Number of references to this decompress_io_ctx.
|
|
*
|
|
* One reference is held for I/O completion. This reference is dropped
|
|
* after the pagecache pages are updated and unlocked -- either after
|
|
* decompression (and verity if enabled), or after an error.
|
|
*
|
|
* In addition, each compressed page holds a reference while it is in a
|
|
* bio. These references are necessary prevent compressed pages from
|
|
* being freed while they are still in a bio.
|
|
*/
|
|
refcount_t refcnt;
|
|
|
|
bool failed; /* IO error occurred before decompression? */
|
|
bool need_verity; /* need fs-verity verification after decompression? */
|
|
void *private; /* payload buffer for specified decompression algorithm */
|
|
void *private2; /* extra payload buffer */
|
|
struct work_struct verity_work; /* work to verify the decompressed pages */
|
|
};
|
|
|
|
#define NULL_CLUSTER ((unsigned int)(~0))
|
|
#define MIN_COMPRESS_LOG_SIZE 2
|
|
#define MAX_COMPRESS_LOG_SIZE 8
|
|
#define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size))
|
|
|
|
struct f2fs_sb_info {
|
|
struct super_block *sb; /* pointer to VFS super block */
|
|
struct proc_dir_entry *s_proc; /* proc entry */
|
|
struct f2fs_super_block *raw_super; /* raw super block pointer */
|
|
struct rw_semaphore sb_lock; /* lock for raw super block */
|
|
int valid_super_block; /* valid super block no */
|
|
unsigned long s_flag; /* flags for sbi */
|
|
struct mutex writepages; /* mutex for writepages() */
|
|
|
|
#ifdef CONFIG_BLK_DEV_ZONED
|
|
unsigned int blocks_per_blkz; /* F2FS blocks per zone */
|
|
unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
|
|
#endif
|
|
|
|
/* for node-related operations */
|
|
struct f2fs_nm_info *nm_info; /* node manager */
|
|
struct inode *node_inode; /* cache node blocks */
|
|
|
|
/* for segment-related operations */
|
|
struct f2fs_sm_info *sm_info; /* segment manager */
|
|
|
|
/* for bio operations */
|
|
struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
|
|
/* keep migration IO order for LFS mode */
|
|
struct rw_semaphore io_order_lock;
|
|
mempool_t *write_io_dummy; /* Dummy pages */
|
|
|
|
/* for checkpoint */
|
|
struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
|
|
int cur_cp_pack; /* remain current cp pack */
|
|
spinlock_t cp_lock; /* for flag in ckpt */
|
|
struct inode *meta_inode; /* cache meta blocks */
|
|
struct rw_semaphore cp_global_sem; /* checkpoint procedure lock */
|
|
struct rw_semaphore cp_rwsem; /* blocking FS operations */
|
|
struct rw_semaphore node_write; /* locking node writes */
|
|
struct rw_semaphore node_change; /* locking node change */
|
|
wait_queue_head_t cp_wait;
|
|
unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
|
|
long interval_time[MAX_TIME]; /* to store thresholds */
|
|
struct ckpt_req_control cprc_info; /* for checkpoint request control */
|
|
|
|
struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
|
|
|
|
spinlock_t fsync_node_lock; /* for node entry lock */
|
|
struct list_head fsync_node_list; /* node list head */
|
|
unsigned int fsync_seg_id; /* sequence id */
|
|
unsigned int fsync_node_num; /* number of node entries */
|
|
|
|
/* for orphan inode, use 0'th array */
|
|
unsigned int max_orphans; /* max orphan inodes */
|
|
|
|
/* for inode management */
|
|
struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
|
|
spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
|
|
struct mutex flush_lock; /* for flush exclusion */
|
|
|
|
/* for extent tree cache */
|
|
struct radix_tree_root extent_tree_root;/* cache extent cache entries */
|
|
struct mutex extent_tree_lock; /* locking extent radix tree */
|
|
struct list_head extent_list; /* lru list for shrinker */
|
|
spinlock_t extent_lock; /* locking extent lru list */
|
|
atomic_t total_ext_tree; /* extent tree count */
|
|
struct list_head zombie_list; /* extent zombie tree list */
|
|
atomic_t total_zombie_tree; /* extent zombie tree count */
|
|
atomic_t total_ext_node; /* extent info count */
|
|
|
|
/* basic filesystem units */
|
|
unsigned int log_sectors_per_block; /* log2 sectors per block */
|
|
unsigned int log_blocksize; /* log2 block size */
|
|
unsigned int blocksize; /* block size */
|
|
unsigned int root_ino_num; /* root inode number*/
|
|
unsigned int node_ino_num; /* node inode number*/
|
|
unsigned int meta_ino_num; /* meta inode number*/
|
|
unsigned int log_blocks_per_seg; /* log2 blocks per segment */
|
|
unsigned int blocks_per_seg; /* blocks per segment */
|
|
unsigned int segs_per_sec; /* segments per section */
|
|
unsigned int secs_per_zone; /* sections per zone */
|
|
unsigned int total_sections; /* total section count */
|
|
unsigned int total_node_count; /* total node block count */
|
|
unsigned int total_valid_node_count; /* valid node block count */
|
|
int dir_level; /* directory level */
|
|
int readdir_ra; /* readahead inode in readdir */
|
|
u64 max_io_bytes; /* max io bytes to merge IOs */
|
|
|
|
block_t user_block_count; /* # of user blocks */
|
|
block_t total_valid_block_count; /* # of valid blocks */
|
|
block_t discard_blks; /* discard command candidats */
|
|
block_t last_valid_block_count; /* for recovery */
|
|
block_t reserved_blocks; /* configurable reserved blocks */
|
|
block_t current_reserved_blocks; /* current reserved blocks */
|
|
|
|
/* Additional tracking for no checkpoint mode */
|
|
block_t unusable_block_count; /* # of blocks saved by last cp */
|
|
|
|
unsigned int nquota_files; /* # of quota sysfile */
|
|
struct rw_semaphore quota_sem; /* blocking cp for flags */
|
|
|
|
/* # of pages, see count_type */
|
|
atomic_t nr_pages[NR_COUNT_TYPE];
|
|
/* # of allocated blocks */
|
|
struct percpu_counter alloc_valid_block_count;
|
|
|
|
/* writeback control */
|
|
atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
|
|
|
|
/* valid inode count */
|
|
struct percpu_counter total_valid_inode_count;
|
|
|
|
struct f2fs_mount_info mount_opt; /* mount options */
|
|
|
|
/* for cleaning operations */
|
|
struct rw_semaphore gc_lock; /*
|
|
* semaphore for GC, avoid
|
|
* race between GC and GC or CP
|
|
*/
|
|
struct f2fs_gc_kthread *gc_thread; /* GC thread */
|
|
struct atgc_management am; /* atgc management */
|
|
unsigned int cur_victim_sec; /* current victim section num */
|
|
unsigned int gc_mode; /* current GC state */
|
|
unsigned int next_victim_seg[2]; /* next segment in victim section */
|
|
spinlock_t gc_urgent_high_lock;
|
|
bool gc_urgent_high_limited; /* indicates having limited trial count */
|
|
unsigned int gc_urgent_high_remaining; /* remaining trial count for GC_URGENT_HIGH */
|
|
|
|
/* for skip statistic */
|
|
unsigned int atomic_files; /* # of opened atomic file */
|
|
unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
|
|
unsigned long long skipped_gc_rwsem; /* FG_GC only */
|
|
|
|
/* threshold for gc trials on pinned files */
|
|
u64 gc_pin_file_threshold;
|
|
struct rw_semaphore pin_sem;
|
|
|
|
/* maximum # of trials to find a victim segment for SSR and GC */
|
|
unsigned int max_victim_search;
|
|
/* migration granularity of garbage collection, unit: segment */
|
|
unsigned int migration_granularity;
|
|
|
|
/*
|
|
* for stat information.
|
|
* one is for the LFS mode, and the other is for the SSR mode.
|
|
*/
|
|
#ifdef CONFIG_F2FS_STAT_FS
|
|
struct f2fs_stat_info *stat_info; /* FS status information */
|
|
atomic_t meta_count[META_MAX]; /* # of meta blocks */
|
|
unsigned int segment_count[2]; /* # of allocated segments */
|
|
unsigned int block_count[2]; /* # of allocated blocks */
|
|
atomic_t inplace_count; /* # of inplace update */
|
|
atomic64_t total_hit_ext; /* # of lookup extent cache */
|
|
atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
|
|
atomic64_t read_hit_largest; /* # of hit largest extent node */
|
|
atomic64_t read_hit_cached; /* # of hit cached extent node */
|
|
atomic_t inline_xattr; /* # of inline_xattr inodes */
|
|
atomic_t inline_inode; /* # of inline_data inodes */
|
|
atomic_t inline_dir; /* # of inline_dentry inodes */
|
|
atomic_t compr_inode; /* # of compressed inodes */
|
|
atomic64_t compr_blocks; /* # of compressed blocks */
|
|
atomic_t vw_cnt; /* # of volatile writes */
|
|
atomic_t max_aw_cnt; /* max # of atomic writes */
|
|
atomic_t max_vw_cnt; /* max # of volatile writes */
|
|
unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
|
|
unsigned int other_skip_bggc; /* skip background gc for other reasons */
|
|
unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
|
|
#endif
|
|
spinlock_t stat_lock; /* lock for stat operations */
|
|
|
|
/* to attach REQ_META|REQ_FUA flags */
|
|
unsigned int data_io_flag;
|
|
unsigned int node_io_flag;
|
|
|
|
/* For sysfs suppport */
|
|
struct kobject s_kobj; /* /sys/fs/f2fs/<devname> */
|
|
struct completion s_kobj_unregister;
|
|
|
|
struct kobject s_stat_kobj; /* /sys/fs/f2fs/<devname>/stat */
|
|
struct completion s_stat_kobj_unregister;
|
|
|
|
struct kobject s_feature_list_kobj; /* /sys/fs/f2fs/<devname>/feature_list */
|
|
struct completion s_feature_list_kobj_unregister;
|
|
|
|
/* For shrinker support */
|
|
struct list_head s_list;
|
|
struct mutex umount_mutex;
|
|
unsigned int shrinker_run_no;
|
|
|
|
/* For multi devices */
|
|
int s_ndevs; /* number of devices */
|
|
struct f2fs_dev_info *devs; /* for device list */
|
|
unsigned int dirty_device; /* for checkpoint data flush */
|
|
spinlock_t dev_lock; /* protect dirty_device */
|
|
bool aligned_blksize; /* all devices has the same logical blksize */
|
|
|
|
/* For write statistics */
|
|
u64 sectors_written_start;
|
|
u64 kbytes_written;
|
|
|
|
/* Reference to checksum algorithm driver via cryptoapi */
|
|
struct crypto_shash *s_chksum_driver;
|
|
|
|
/* Precomputed FS UUID checksum for seeding other checksums */
|
|
__u32 s_chksum_seed;
|
|
|
|
struct workqueue_struct *post_read_wq; /* post read workqueue */
|
|
|
|
struct kmem_cache *inline_xattr_slab; /* inline xattr entry */
|
|
unsigned int inline_xattr_slab_size; /* default inline xattr slab size */
|
|
|
|
/* For reclaimed segs statistics per each GC mode */
|
|
unsigned int gc_segment_mode; /* GC state for reclaimed segments */
|
|
unsigned int gc_reclaimed_segs[MAX_GC_MODE]; /* Reclaimed segs for each mode */
|
|
|
|
unsigned long seq_file_ra_mul; /* multiplier for ra_pages of seq. files in fadvise */
|
|
|
|
int max_fragment_chunk; /* max chunk size for block fragmentation mode */
|
|
int max_fragment_hole; /* max hole size for block fragmentation mode */
|
|
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION
|
|
struct kmem_cache *page_array_slab; /* page array entry */
|
|
unsigned int page_array_slab_size; /* default page array slab size */
|
|
|
|
/* For runtime compression statistics */
|
|
u64 compr_written_block;
|
|
u64 compr_saved_block;
|
|
u32 compr_new_inode;
|
|
|
|
/* For compressed block cache */
|
|
struct inode *compress_inode; /* cache compressed blocks */
|
|
unsigned int compress_percent; /* cache page percentage */
|
|
unsigned int compress_watermark; /* cache page watermark */
|
|
atomic_t compress_page_hit; /* cache hit count */
|
|
#endif
|
|
|
|
#ifdef CONFIG_F2FS_IOSTAT
|
|
/* For app/fs IO statistics */
|
|
spinlock_t iostat_lock;
|
|
unsigned long long rw_iostat[NR_IO_TYPE];
|
|
unsigned long long prev_rw_iostat[NR_IO_TYPE];
|
|
bool iostat_enable;
|
|
unsigned long iostat_next_period;
|
|
unsigned int iostat_period_ms;
|
|
|
|
/* For io latency related statistics info in one iostat period */
|
|
spinlock_t iostat_lat_lock;
|
|
struct iostat_lat_info *iostat_io_lat;
|
|
#endif
|
|
};
|
|
|
|
#ifdef CONFIG_F2FS_FAULT_INJECTION
|
|
#define f2fs_show_injection_info(sbi, type) \
|
|
printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \
|
|
KERN_INFO, sbi->sb->s_id, \
|
|
f2fs_fault_name[type], \
|
|
__func__, __builtin_return_address(0))
|
|
static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
|
|
{
|
|
struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
|
|
|
|
if (!ffi->inject_rate)
|
|
return false;
|
|
|
|
if (!IS_FAULT_SET(ffi, type))
|
|
return false;
|
|
|
|
atomic_inc(&ffi->inject_ops);
|
|
if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
|
|
atomic_set(&ffi->inject_ops, 0);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
#else
|
|
#define f2fs_show_injection_info(sbi, type) do { } while (0)
|
|
static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
|
|
{
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Test if the mounted volume is a multi-device volume.
|
|
* - For a single regular disk volume, sbi->s_ndevs is 0.
|
|
* - For a single zoned disk volume, sbi->s_ndevs is 1.
|
|
* - For a multi-device volume, sbi->s_ndevs is always 2 or more.
|
|
*/
|
|
static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
|
|
{
|
|
return sbi->s_ndevs > 1;
|
|
}
|
|
|
|
static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
|
|
{
|
|
unsigned long now = jiffies;
|
|
|
|
sbi->last_time[type] = now;
|
|
|
|
/* DISCARD_TIME and GC_TIME are based on REQ_TIME */
|
|
if (type == REQ_TIME) {
|
|
sbi->last_time[DISCARD_TIME] = now;
|
|
sbi->last_time[GC_TIME] = now;
|
|
}
|
|
}
|
|
|
|
static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
|
|
{
|
|
unsigned long interval = sbi->interval_time[type] * HZ;
|
|
|
|
return time_after(jiffies, sbi->last_time[type] + interval);
|
|
}
|
|
|
|
static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
|
|
int type)
|
|
{
|
|
unsigned long interval = sbi->interval_time[type] * HZ;
|
|
unsigned int wait_ms = 0;
|
|
long delta;
|
|
|
|
delta = (sbi->last_time[type] + interval) - jiffies;
|
|
if (delta > 0)
|
|
wait_ms = jiffies_to_msecs(delta);
|
|
|
|
return wait_ms;
|
|
}
|
|
|
|
/*
|
|
* Inline functions
|
|
*/
|
|
static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
|
|
const void *address, unsigned int length)
|
|
{
|
|
struct {
|
|
struct shash_desc shash;
|
|
char ctx[4];
|
|
} desc;
|
|
int err;
|
|
|
|
BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
|
|
|
|
desc.shash.tfm = sbi->s_chksum_driver;
|
|
*(u32 *)desc.ctx = crc;
|
|
|
|
err = crypto_shash_update(&desc.shash, address, length);
|
|
BUG_ON(err);
|
|
|
|
return *(u32 *)desc.ctx;
|
|
}
|
|
|
|
static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
|
|
unsigned int length)
|
|
{
|
|
return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
|
|
}
|
|
|
|
static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
|
|
void *buf, size_t buf_size)
|
|
{
|
|
return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
|
|
}
|
|
|
|
static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
|
|
const void *address, unsigned int length)
|
|
{
|
|
return __f2fs_crc32(sbi, crc, address, length);
|
|
}
|
|
|
|
static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
|
|
{
|
|
return container_of(inode, struct f2fs_inode_info, vfs_inode);
|
|
}
|
|
|
|
static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
|
|
{
|
|
return sb->s_fs_info;
|
|
}
|
|
|
|
static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
|
|
{
|
|
return F2FS_SB(inode->i_sb);
|
|
}
|
|
|
|
static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
|
|
{
|
|
return F2FS_I_SB(mapping->host);
|
|
}
|
|
|
|
static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
|
|
{
|
|
return F2FS_M_SB(page_file_mapping(page));
|
|
}
|
|
|
|
static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
|
|
{
|
|
return (struct f2fs_super_block *)(sbi->raw_super);
|
|
}
|
|
|
|
static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
|
|
{
|
|
return (struct f2fs_checkpoint *)(sbi->ckpt);
|
|
}
|
|
|
|
static inline struct f2fs_node *F2FS_NODE(struct page *page)
|
|
{
|
|
return (struct f2fs_node *)page_address(page);
|
|
}
|
|
|
|
static inline struct f2fs_inode *F2FS_INODE(struct page *page)
|
|
{
|
|
return &((struct f2fs_node *)page_address(page))->i;
|
|
}
|
|
|
|
static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
|
|
{
|
|
return (struct f2fs_nm_info *)(sbi->nm_info);
|
|
}
|
|
|
|
static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
|
|
{
|
|
return (struct f2fs_sm_info *)(sbi->sm_info);
|
|
}
|
|
|
|
static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
|
|
{
|
|
return (struct sit_info *)(SM_I(sbi)->sit_info);
|
|
}
|
|
|
|
static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
|
|
{
|
|
return (struct free_segmap_info *)(SM_I(sbi)->free_info);
|
|
}
|
|
|
|
static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
|
|
{
|
|
return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
|
|
}
|
|
|
|
static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
|
|
{
|
|
return sbi->meta_inode->i_mapping;
|
|
}
|
|
|
|
static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
|
|
{
|
|
return sbi->node_inode->i_mapping;
|
|
}
|
|
|
|
static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
|
|
{
|
|
return test_bit(type, &sbi->s_flag);
|
|
}
|
|
|
|
static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
|
|
{
|
|
set_bit(type, &sbi->s_flag);
|
|
}
|
|
|
|
static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
|
|
{
|
|
clear_bit(type, &sbi->s_flag);
|
|
}
|
|
|
|
static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
|
|
{
|
|
return le64_to_cpu(cp->checkpoint_ver);
|
|
}
|
|
|
|
static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
|
|
{
|
|
if (type < F2FS_MAX_QUOTAS)
|
|
return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
|
|
return 0;
|
|
}
|
|
|
|
static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
|
|
{
|
|
size_t crc_offset = le32_to_cpu(cp->checksum_offset);
|
|
return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
|
|
}
|
|
|
|
static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
|
|
{
|
|
unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
|
|
|
|
return ckpt_flags & f;
|
|
}
|
|
|
|
static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
|
|
{
|
|
return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
|
|
}
|
|
|
|
static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
|
|
{
|
|
unsigned int ckpt_flags;
|
|
|
|
ckpt_flags = le32_to_cpu(cp->ckpt_flags);
|
|
ckpt_flags |= f;
|
|
cp->ckpt_flags = cpu_to_le32(ckpt_flags);
|
|
}
|
|
|
|
static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&sbi->cp_lock, flags);
|
|
__set_ckpt_flags(F2FS_CKPT(sbi), f);
|
|
spin_unlock_irqrestore(&sbi->cp_lock, flags);
|
|
}
|
|
|
|
static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
|
|
{
|
|
unsigned int ckpt_flags;
|
|
|
|
ckpt_flags = le32_to_cpu(cp->ckpt_flags);
|
|
ckpt_flags &= (~f);
|
|
cp->ckpt_flags = cpu_to_le32(ckpt_flags);
|
|
}
|
|
|
|
static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&sbi->cp_lock, flags);
|
|
__clear_ckpt_flags(F2FS_CKPT(sbi), f);
|
|
spin_unlock_irqrestore(&sbi->cp_lock, flags);
|
|
}
|
|
|
|
static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
|
|
{
|
|
down_read(&sbi->cp_rwsem);
|
|
}
|
|
|
|
static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
|
|
{
|
|
if (time_to_inject(sbi, FAULT_LOCK_OP)) {
|
|
f2fs_show_injection_info(sbi, FAULT_LOCK_OP);
|
|
return 0;
|
|
}
|
|
return down_read_trylock(&sbi->cp_rwsem);
|
|
}
|
|
|
|
static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
|
|
{
|
|
up_read(&sbi->cp_rwsem);
|
|
}
|
|
|
|
static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
|
|
{
|
|
down_write(&sbi->cp_rwsem);
|
|
}
|
|
|
|
static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
|
|
{
|
|
up_write(&sbi->cp_rwsem);
|
|
}
|
|
|
|
static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
|
|
{
|
|
int reason = CP_SYNC;
|
|
|
|
if (test_opt(sbi, FASTBOOT))
|
|
reason = CP_FASTBOOT;
|
|
if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
|
|
reason = CP_UMOUNT;
|
|
return reason;
|
|
}
|
|
|
|
static inline bool __remain_node_summaries(int reason)
|
|
{
|
|
return (reason & (CP_UMOUNT | CP_FASTBOOT));
|
|
}
|
|
|
|
static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
|
|
{
|
|
return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
|
|
is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
|
|
}
|
|
|
|
/*
|
|
* Check whether the inode has blocks or not
|
|
*/
|
|
static inline int F2FS_HAS_BLOCKS(struct inode *inode)
|
|
{
|
|
block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
|
|
|
|
return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
|
|
}
|
|
|
|
static inline bool f2fs_has_xattr_block(unsigned int ofs)
|
|
{
|
|
return ofs == XATTR_NODE_OFFSET;
|
|
}
|
|
|
|
static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
|
|
struct inode *inode, bool cap)
|
|
{
|
|
if (!inode)
|
|
return true;
|
|
if (!test_opt(sbi, RESERVE_ROOT))
|
|
return false;
|
|
if (IS_NOQUOTA(inode))
|
|
return true;
|
|
if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
|
|
return true;
|
|
if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
|
|
in_group_p(F2FS_OPTION(sbi).s_resgid))
|
|
return true;
|
|
if (cap && capable(CAP_SYS_RESOURCE))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
|
|
static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
|
|
struct inode *inode, blkcnt_t *count)
|
|
{
|
|
blkcnt_t diff = 0, release = 0;
|
|
block_t avail_user_block_count;
|
|
int ret;
|
|
|
|
ret = dquot_reserve_block(inode, *count);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (time_to_inject(sbi, FAULT_BLOCK)) {
|
|
f2fs_show_injection_info(sbi, FAULT_BLOCK);
|
|
release = *count;
|
|
goto release_quota;
|
|
}
|
|
|
|
/*
|
|
* let's increase this in prior to actual block count change in order
|
|
* for f2fs_sync_file to avoid data races when deciding checkpoint.
|
|
*/
|
|
percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
|
|
|
|
spin_lock(&sbi->stat_lock);
|
|
sbi->total_valid_block_count += (block_t)(*count);
|
|
avail_user_block_count = sbi->user_block_count -
|
|
sbi->current_reserved_blocks;
|
|
|
|
if (!__allow_reserved_blocks(sbi, inode, true))
|
|
avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
|
|
|
|
if (F2FS_IO_ALIGNED(sbi))
|
|
avail_user_block_count -= sbi->blocks_per_seg *
|
|
SM_I(sbi)->additional_reserved_segments;
|
|
|
|
if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
|
|
if (avail_user_block_count > sbi->unusable_block_count)
|
|
avail_user_block_count -= sbi->unusable_block_count;
|
|
else
|
|
avail_user_block_count = 0;
|
|
}
|
|
if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
|
|
diff = sbi->total_valid_block_count - avail_user_block_count;
|
|
if (diff > *count)
|
|
diff = *count;
|
|
*count -= diff;
|
|
release = diff;
|
|
sbi->total_valid_block_count -= diff;
|
|
if (!*count) {
|
|
spin_unlock(&sbi->stat_lock);
|
|
goto enospc;
|
|
}
|
|
}
|
|
spin_unlock(&sbi->stat_lock);
|
|
|
|
if (unlikely(release)) {
|
|
percpu_counter_sub(&sbi->alloc_valid_block_count, release);
|
|
dquot_release_reservation_block(inode, release);
|
|
}
|
|
f2fs_i_blocks_write(inode, *count, true, true);
|
|
return 0;
|
|
|
|
enospc:
|
|
percpu_counter_sub(&sbi->alloc_valid_block_count, release);
|
|
release_quota:
|
|
dquot_release_reservation_block(inode, release);
|
|
return -ENOSPC;
|
|
}
|
|
|
|
__printf(2, 3)
|
|
void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
|
|
|
|
#define f2fs_err(sbi, fmt, ...) \
|
|
f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
|
|
#define f2fs_warn(sbi, fmt, ...) \
|
|
f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
|
|
#define f2fs_notice(sbi, fmt, ...) \
|
|
f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
|
|
#define f2fs_info(sbi, fmt, ...) \
|
|
f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
|
|
#define f2fs_debug(sbi, fmt, ...) \
|
|
f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
|
|
|
|
static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
|
|
struct inode *inode,
|
|
block_t count)
|
|
{
|
|
blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
|
|
|
|
spin_lock(&sbi->stat_lock);
|
|
f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
|
|
sbi->total_valid_block_count -= (block_t)count;
|
|
if (sbi->reserved_blocks &&
|
|
sbi->current_reserved_blocks < sbi->reserved_blocks)
|
|
sbi->current_reserved_blocks = min(sbi->reserved_blocks,
|
|
sbi->current_reserved_blocks + count);
|
|
spin_unlock(&sbi->stat_lock);
|
|
if (unlikely(inode->i_blocks < sectors)) {
|
|
f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
|
|
inode->i_ino,
|
|
(unsigned long long)inode->i_blocks,
|
|
(unsigned long long)sectors);
|
|
set_sbi_flag(sbi, SBI_NEED_FSCK);
|
|
return;
|
|
}
|
|
f2fs_i_blocks_write(inode, count, false, true);
|
|
}
|
|
|
|
static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
|
|
{
|
|
atomic_inc(&sbi->nr_pages[count_type]);
|
|
|
|
if (count_type == F2FS_DIRTY_DENTS ||
|
|
count_type == F2FS_DIRTY_NODES ||
|
|
count_type == F2FS_DIRTY_META ||
|
|
count_type == F2FS_DIRTY_QDATA ||
|
|
count_type == F2FS_DIRTY_IMETA)
|
|
set_sbi_flag(sbi, SBI_IS_DIRTY);
|
|
}
|
|
|
|
static inline void inode_inc_dirty_pages(struct inode *inode)
|
|
{
|
|
atomic_inc(&F2FS_I(inode)->dirty_pages);
|
|
inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
|
|
F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
|
|
if (IS_NOQUOTA(inode))
|
|
inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
|
|
}
|
|
|
|
static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
|
|
{
|
|
atomic_dec(&sbi->nr_pages[count_type]);
|
|
}
|
|
|
|
static inline void inode_dec_dirty_pages(struct inode *inode)
|
|
{
|
|
if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
|
|
!S_ISLNK(inode->i_mode))
|
|
return;
|
|
|
|
atomic_dec(&F2FS_I(inode)->dirty_pages);
|
|
dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
|
|
F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
|
|
if (IS_NOQUOTA(inode))
|
|
dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
|
|
}
|
|
|
|
static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
|
|
{
|
|
return atomic_read(&sbi->nr_pages[count_type]);
|
|
}
|
|
|
|
static inline int get_dirty_pages(struct inode *inode)
|
|
{
|
|
return atomic_read(&F2FS_I(inode)->dirty_pages);
|
|
}
|
|
|
|
static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
|
|
{
|
|
unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
|
|
unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
|
|
sbi->log_blocks_per_seg;
|
|
|
|
return segs / sbi->segs_per_sec;
|
|
}
|
|
|
|
static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
|
|
{
|
|
return sbi->total_valid_block_count;
|
|
}
|
|
|
|
static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
|
|
{
|
|
return sbi->discard_blks;
|
|
}
|
|
|
|
static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
|
|
{
|
|
struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
|
|
|
|
/* return NAT or SIT bitmap */
|
|
if (flag == NAT_BITMAP)
|
|
return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
|
|
else if (flag == SIT_BITMAP)
|
|
return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
|
|
{
|
|
return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
|
|
}
|
|
|
|
static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
|
|
{
|
|
struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
|
|
void *tmp_ptr = &ckpt->sit_nat_version_bitmap;
|
|
int offset;
|
|
|
|
if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
|
|
offset = (flag == SIT_BITMAP) ?
|
|
le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
|
|
/*
|
|
* if large_nat_bitmap feature is enabled, leave checksum
|
|
* protection for all nat/sit bitmaps.
|
|
*/
|
|
return tmp_ptr + offset + sizeof(__le32);
|
|
}
|
|
|
|
if (__cp_payload(sbi) > 0) {
|
|
if (flag == NAT_BITMAP)
|
|
return &ckpt->sit_nat_version_bitmap;
|
|
else
|
|
return (unsigned char *)ckpt + F2FS_BLKSIZE;
|
|
} else {
|
|
offset = (flag == NAT_BITMAP) ?
|
|
le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
|
|
return tmp_ptr + offset;
|
|
}
|
|
}
|
|
|
|
static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
|
|
{
|
|
block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
|
|
|
|
if (sbi->cur_cp_pack == 2)
|
|
start_addr += sbi->blocks_per_seg;
|
|
return start_addr;
|
|
}
|
|
|
|
static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
|
|
{
|
|
block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
|
|
|
|
if (sbi->cur_cp_pack == 1)
|
|
start_addr += sbi->blocks_per_seg;
|
|
return start_addr;
|
|
}
|
|
|
|
static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
|
|
{
|
|
sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
|
|
}
|
|
|
|
static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
|
|
{
|
|
return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
|
|
}
|
|
|
|
static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
|
|
struct inode *inode, bool is_inode)
|
|
{
|
|
block_t valid_block_count;
|
|
unsigned int valid_node_count, user_block_count;
|
|
int err;
|
|
|
|
if (is_inode) {
|
|
if (inode) {
|
|
err = dquot_alloc_inode(inode);
|
|
if (err)
|
|
return err;
|
|
}
|
|
} else {
|
|
err = dquot_reserve_block(inode, 1);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (time_to_inject(sbi, FAULT_BLOCK)) {
|
|
f2fs_show_injection_info(sbi, FAULT_BLOCK);
|
|
goto enospc;
|
|
}
|
|
|
|
spin_lock(&sbi->stat_lock);
|
|
|
|
valid_block_count = sbi->total_valid_block_count +
|
|
sbi->current_reserved_blocks + 1;
|
|
|
|
if (!__allow_reserved_blocks(sbi, inode, false))
|
|
valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
|
|
|
|
if (F2FS_IO_ALIGNED(sbi))
|
|
valid_block_count += sbi->blocks_per_seg *
|
|
SM_I(sbi)->additional_reserved_segments;
|
|
|
|
user_block_count = sbi->user_block_count;
|
|
if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
|
|
user_block_count -= sbi->unusable_block_count;
|
|
|
|
if (unlikely(valid_block_count > user_block_count)) {
|
|
spin_unlock(&sbi->stat_lock);
|
|
goto enospc;
|
|
}
|
|
|
|
valid_node_count = sbi->total_valid_node_count + 1;
|
|
if (unlikely(valid_node_count > sbi->total_node_count)) {
|
|
spin_unlock(&sbi->stat_lock);
|
|
goto enospc;
|
|
}
|
|
|
|
sbi->total_valid_node_count++;
|
|
sbi->total_valid_block_count++;
|
|
spin_unlock(&sbi->stat_lock);
|
|
|
|
if (inode) {
|
|
if (is_inode)
|
|
f2fs_mark_inode_dirty_sync(inode, true);
|
|
else
|
|
f2fs_i_blocks_write(inode, 1, true, true);
|
|
}
|
|
|
|
percpu_counter_inc(&sbi->alloc_valid_block_count);
|
|
return 0;
|
|
|
|
enospc:
|
|
if (is_inode) {
|
|
if (inode)
|
|
dquot_free_inode(inode);
|
|
} else {
|
|
dquot_release_reservation_block(inode, 1);
|
|
}
|
|
return -ENOSPC;
|
|
}
|
|
|
|
static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
|
|
struct inode *inode, bool is_inode)
|
|
{
|
|
spin_lock(&sbi->stat_lock);
|
|
|
|
f2fs_bug_on(sbi, !sbi->total_valid_block_count);
|
|
f2fs_bug_on(sbi, !sbi->total_valid_node_count);
|
|
|
|
sbi->total_valid_node_count--;
|
|
sbi->total_valid_block_count--;
|
|
if (sbi->reserved_blocks &&
|
|
sbi->current_reserved_blocks < sbi->reserved_blocks)
|
|
sbi->current_reserved_blocks++;
|
|
|
|
spin_unlock(&sbi->stat_lock);
|
|
|
|
if (is_inode) {
|
|
dquot_free_inode(inode);
|
|
} else {
|
|
if (unlikely(inode->i_blocks == 0)) {
|
|
f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu",
|
|
inode->i_ino,
|
|
(unsigned long long)inode->i_blocks);
|
|
set_sbi_flag(sbi, SBI_NEED_FSCK);
|
|
return;
|
|
}
|
|
f2fs_i_blocks_write(inode, 1, false, true);
|
|
}
|
|
}
|
|
|
|
static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
|
|
{
|
|
return sbi->total_valid_node_count;
|
|
}
|
|
|
|
static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
|
|
{
|
|
percpu_counter_inc(&sbi->total_valid_inode_count);
|
|
}
|
|
|
|
static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
|
|
{
|
|
percpu_counter_dec(&sbi->total_valid_inode_count);
|
|
}
|
|
|
|
static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
|
|
{
|
|
return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
|
|
}
|
|
|
|
static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
|
|
pgoff_t index, bool for_write)
|
|
{
|
|
struct page *page;
|
|
|
|
if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
|
|
if (!for_write)
|
|
page = find_get_page_flags(mapping, index,
|
|
FGP_LOCK | FGP_ACCESSED);
|
|
else
|
|
page = find_lock_page(mapping, index);
|
|
if (page)
|
|
return page;
|
|
|
|
if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
|
|
f2fs_show_injection_info(F2FS_M_SB(mapping),
|
|
FAULT_PAGE_ALLOC);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (!for_write)
|
|
return grab_cache_page(mapping, index);
|
|
return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
|
|
}
|
|
|
|
static inline struct page *f2fs_pagecache_get_page(
|
|
struct address_space *mapping, pgoff_t index,
|
|
int fgp_flags, gfp_t gfp_mask)
|
|
{
|
|
if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
|
|
f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET);
|
|
return NULL;
|
|
}
|
|
|
|
return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
|
|
}
|
|
|
|
static inline void f2fs_copy_page(struct page *src, struct page *dst)
|
|
{
|
|
char *src_kaddr = kmap(src);
|
|
char *dst_kaddr = kmap(dst);
|
|
|
|
memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
|
|
kunmap(dst);
|
|
kunmap(src);
|
|
}
|
|
|
|
static inline void f2fs_put_page(struct page *page, int unlock)
|
|
{
|
|
if (!page)
|
|
return;
|
|
|
|
if (unlock) {
|
|
f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
|
|
unlock_page(page);
|
|
}
|
|
put_page(page);
|
|
}
|
|
|
|
static inline void f2fs_put_dnode(struct dnode_of_data *dn)
|
|
{
|
|
if (dn->node_page)
|
|
f2fs_put_page(dn->node_page, 1);
|
|
if (dn->inode_page && dn->node_page != dn->inode_page)
|
|
f2fs_put_page(dn->inode_page, 0);
|
|
dn->node_page = NULL;
|
|
dn->inode_page = NULL;
|
|
}
|
|
|
|
static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
|
|
size_t size)
|
|
{
|
|
return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
|
|
}
|
|
|
|
static inline void *f2fs_kmem_cache_alloc_nofail(struct kmem_cache *cachep,
|
|
gfp_t flags)
|
|
{
|
|
void *entry;
|
|
|
|
entry = kmem_cache_alloc(cachep, flags);
|
|
if (!entry)
|
|
entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
|
|
return entry;
|
|
}
|
|
|
|
static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
|
|
gfp_t flags, bool nofail, struct f2fs_sb_info *sbi)
|
|
{
|
|
if (nofail)
|
|
return f2fs_kmem_cache_alloc_nofail(cachep, flags);
|
|
|
|
if (time_to_inject(sbi, FAULT_SLAB_ALLOC)) {
|
|
f2fs_show_injection_info(sbi, FAULT_SLAB_ALLOC);
|
|
return NULL;
|
|
}
|
|
|
|
return kmem_cache_alloc(cachep, flags);
|
|
}
|
|
|
|
static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type)
|
|
{
|
|
if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
|
|
get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
|
|
get_pages(sbi, F2FS_WB_CP_DATA) ||
|
|
get_pages(sbi, F2FS_DIO_READ) ||
|
|
get_pages(sbi, F2FS_DIO_WRITE))
|
|
return true;
|
|
|
|
if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
|
|
atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
|
|
return true;
|
|
|
|
if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
|
|
atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
|
|
{
|
|
if (sbi->gc_mode == GC_URGENT_HIGH)
|
|
return true;
|
|
|
|
if (is_inflight_io(sbi, type))
|
|
return false;
|
|
|
|
if (sbi->gc_mode == GC_URGENT_LOW &&
|
|
(type == DISCARD_TIME || type == GC_TIME))
|
|
return true;
|
|
|
|
return f2fs_time_over(sbi, type);
|
|
}
|
|
|
|
static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
|
|
unsigned long index, void *item)
|
|
{
|
|
while (radix_tree_insert(root, index, item))
|
|
cond_resched();
|
|
}
|
|
|
|
#define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
|
|
|
|
static inline bool IS_INODE(struct page *page)
|
|
{
|
|
struct f2fs_node *p = F2FS_NODE(page);
|
|
|
|
return RAW_IS_INODE(p);
|
|
}
|
|
|
|
static inline int offset_in_addr(struct f2fs_inode *i)
|
|
{
|
|
return (i->i_inline & F2FS_EXTRA_ATTR) ?
|
|
(le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
|
|
}
|
|
|
|
static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
|
|
{
|
|
return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
|
|
}
|
|
|
|
static inline int f2fs_has_extra_attr(struct inode *inode);
|
|
static inline block_t data_blkaddr(struct inode *inode,
|
|
struct page *node_page, unsigned int offset)
|
|
{
|
|
struct f2fs_node *raw_node;
|
|
__le32 *addr_array;
|
|
int base = 0;
|
|
bool is_inode = IS_INODE(node_page);
|
|
|
|
raw_node = F2FS_NODE(node_page);
|
|
|
|
if (is_inode) {
|
|
if (!inode)
|
|
/* from GC path only */
|
|
base = offset_in_addr(&raw_node->i);
|
|
else if (f2fs_has_extra_attr(inode))
|
|
base = get_extra_isize(inode);
|
|
}
|
|
|
|
addr_array = blkaddr_in_node(raw_node);
|
|
return le32_to_cpu(addr_array[base + offset]);
|
|
}
|
|
|
|
static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn)
|
|
{
|
|
return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node);
|
|
}
|
|
|
|
static inline int f2fs_test_bit(unsigned int nr, char *addr)
|
|
{
|
|
int mask;
|
|
|
|
addr += (nr >> 3);
|
|
mask = 1 << (7 - (nr & 0x07));
|
|
return mask & *addr;
|
|
}
|
|
|
|
static inline void f2fs_set_bit(unsigned int nr, char *addr)
|
|
{
|
|
int mask;
|
|
|
|
addr += (nr >> 3);
|
|
mask = 1 << (7 - (nr & 0x07));
|
|
*addr |= mask;
|
|
}
|
|
|
|
static inline void f2fs_clear_bit(unsigned int nr, char *addr)
|
|
{
|
|
int mask;
|
|
|
|
addr += (nr >> 3);
|
|
mask = 1 << (7 - (nr & 0x07));
|
|
*addr &= ~mask;
|
|
}
|
|
|
|
static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
|
|
{
|
|
int mask;
|
|
int ret;
|
|
|
|
addr += (nr >> 3);
|
|
mask = 1 << (7 - (nr & 0x07));
|
|
ret = mask & *addr;
|
|
*addr |= mask;
|
|
return ret;
|
|
}
|
|
|
|
static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
|
|
{
|
|
int mask;
|
|
int ret;
|
|
|
|
addr += (nr >> 3);
|
|
mask = 1 << (7 - (nr & 0x07));
|
|
ret = mask & *addr;
|
|
*addr &= ~mask;
|
|
return ret;
|
|
}
|
|
|
|
static inline void f2fs_change_bit(unsigned int nr, char *addr)
|
|
{
|
|
int mask;
|
|
|
|
addr += (nr >> 3);
|
|
mask = 1 << (7 - (nr & 0x07));
|
|
*addr ^= mask;
|
|
}
|
|
|
|
/*
|
|
* On-disk inode flags (f2fs_inode::i_flags)
|
|
*/
|
|
#define F2FS_COMPR_FL 0x00000004 /* Compress file */
|
|
#define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
|
|
#define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
|
|
#define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
|
|
#define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
|
|
#define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
|
|
#define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */
|
|
#define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
|
|
#define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
|
|
#define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
|
|
#define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
|
|
|
|
/* Flags that should be inherited by new inodes from their parent. */
|
|
#define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
|
|
F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
|
|
F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL)
|
|
|
|
/* Flags that are appropriate for regular files (all but dir-specific ones). */
|
|
#define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
|
|
F2FS_CASEFOLD_FL))
|
|
|
|
/* Flags that are appropriate for non-directories/regular files. */
|
|
#define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
|
|
|
|
static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
|
|
{
|
|
if (S_ISDIR(mode))
|
|
return flags;
|
|
else if (S_ISREG(mode))
|
|
return flags & F2FS_REG_FLMASK;
|
|
else
|
|
return flags & F2FS_OTHER_FLMASK;
|
|
}
|
|
|
|
static inline void __mark_inode_dirty_flag(struct inode *inode,
|
|
int flag, bool set)
|
|
{
|
|
switch (flag) {
|
|
case FI_INLINE_XATTR:
|
|
case FI_INLINE_DATA:
|
|
case FI_INLINE_DENTRY:
|
|
case FI_NEW_INODE:
|
|
if (set)
|
|
return;
|
|
fallthrough;
|
|
case FI_DATA_EXIST:
|
|
case FI_INLINE_DOTS:
|
|
case FI_PIN_FILE:
|
|
case FI_COMPRESS_RELEASED:
|
|
f2fs_mark_inode_dirty_sync(inode, true);
|
|
}
|
|
}
|
|
|
|
static inline void set_inode_flag(struct inode *inode, int flag)
|
|
{
|
|
set_bit(flag, F2FS_I(inode)->flags);
|
|
__mark_inode_dirty_flag(inode, flag, true);
|
|
}
|
|
|
|
static inline int is_inode_flag_set(struct inode *inode, int flag)
|
|
{
|
|
return test_bit(flag, F2FS_I(inode)->flags);
|
|
}
|
|
|
|
static inline void clear_inode_flag(struct inode *inode, int flag)
|
|
{
|
|
clear_bit(flag, F2FS_I(inode)->flags);
|
|
__mark_inode_dirty_flag(inode, flag, false);
|
|
}
|
|
|
|
static inline bool f2fs_verity_in_progress(struct inode *inode)
|
|
{
|
|
return IS_ENABLED(CONFIG_FS_VERITY) &&
|
|
is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
|
|
}
|
|
|
|
static inline void set_acl_inode(struct inode *inode, umode_t mode)
|
|
{
|
|
F2FS_I(inode)->i_acl_mode = mode;
|
|
set_inode_flag(inode, FI_ACL_MODE);
|
|
f2fs_mark_inode_dirty_sync(inode, false);
|
|
}
|
|
|
|
static inline void f2fs_i_links_write(struct inode *inode, bool inc)
|
|
{
|
|
if (inc)
|
|
inc_nlink(inode);
|
|
else
|
|
drop_nlink(inode);
|
|
f2fs_mark_inode_dirty_sync(inode, true);
|
|
}
|
|
|
|
static inline void f2fs_i_blocks_write(struct inode *inode,
|
|
block_t diff, bool add, bool claim)
|
|
{
|
|
bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
|
|
bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
|
|
|
|
/* add = 1, claim = 1 should be dquot_reserve_block in pair */
|
|
if (add) {
|
|
if (claim)
|
|
dquot_claim_block(inode, diff);
|
|
else
|
|
dquot_alloc_block_nofail(inode, diff);
|
|
} else {
|
|
dquot_free_block(inode, diff);
|
|
}
|
|
|
|
f2fs_mark_inode_dirty_sync(inode, true);
|
|
if (clean || recover)
|
|
set_inode_flag(inode, FI_AUTO_RECOVER);
|
|
}
|
|
|
|
static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
|
|
{
|
|
bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
|
|
bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
|
|
|
|
if (i_size_read(inode) == i_size)
|
|
return;
|
|
|
|
i_size_write(inode, i_size);
|
|
f2fs_mark_inode_dirty_sync(inode, true);
|
|
if (clean || recover)
|
|
set_inode_flag(inode, FI_AUTO_RECOVER);
|
|
}
|
|
|
|
static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
|
|
{
|
|
F2FS_I(inode)->i_current_depth = depth;
|
|
f2fs_mark_inode_dirty_sync(inode, true);
|
|
}
|
|
|
|
static inline void f2fs_i_gc_failures_write(struct inode *inode,
|
|
unsigned int count)
|
|
{
|
|
F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
|
|
f2fs_mark_inode_dirty_sync(inode, true);
|
|
}
|
|
|
|
static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
|
|
{
|
|
F2FS_I(inode)->i_xattr_nid = xnid;
|
|
f2fs_mark_inode_dirty_sync(inode, true);
|
|
}
|
|
|
|
static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
|
|
{
|
|
F2FS_I(inode)->i_pino = pino;
|
|
f2fs_mark_inode_dirty_sync(inode, true);
|
|
}
|
|
|
|
static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
|
|
{
|
|
struct f2fs_inode_info *fi = F2FS_I(inode);
|
|
|
|
if (ri->i_inline & F2FS_INLINE_XATTR)
|
|
set_bit(FI_INLINE_XATTR, fi->flags);
|
|
if (ri->i_inline & F2FS_INLINE_DATA)
|
|
set_bit(FI_INLINE_DATA, fi->flags);
|
|
if (ri->i_inline & F2FS_INLINE_DENTRY)
|
|
set_bit(FI_INLINE_DENTRY, fi->flags);
|
|
if (ri->i_inline & F2FS_DATA_EXIST)
|
|
set_bit(FI_DATA_EXIST, fi->flags);
|
|
if (ri->i_inline & F2FS_INLINE_DOTS)
|
|
set_bit(FI_INLINE_DOTS, fi->flags);
|
|
if (ri->i_inline & F2FS_EXTRA_ATTR)
|
|
set_bit(FI_EXTRA_ATTR, fi->flags);
|
|
if (ri->i_inline & F2FS_PIN_FILE)
|
|
set_bit(FI_PIN_FILE, fi->flags);
|
|
if (ri->i_inline & F2FS_COMPRESS_RELEASED)
|
|
set_bit(FI_COMPRESS_RELEASED, fi->flags);
|
|
}
|
|
|
|
static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
|
|
{
|
|
ri->i_inline = 0;
|
|
|
|
if (is_inode_flag_set(inode, FI_INLINE_XATTR))
|
|
ri->i_inline |= F2FS_INLINE_XATTR;
|
|
if (is_inode_flag_set(inode, FI_INLINE_DATA))
|
|
ri->i_inline |= F2FS_INLINE_DATA;
|
|
if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
|
|
ri->i_inline |= F2FS_INLINE_DENTRY;
|
|
if (is_inode_flag_set(inode, FI_DATA_EXIST))
|
|
ri->i_inline |= F2FS_DATA_EXIST;
|
|
if (is_inode_flag_set(inode, FI_INLINE_DOTS))
|
|
ri->i_inline |= F2FS_INLINE_DOTS;
|
|
if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
|
|
ri->i_inline |= F2FS_EXTRA_ATTR;
|
|
if (is_inode_flag_set(inode, FI_PIN_FILE))
|
|
ri->i_inline |= F2FS_PIN_FILE;
|
|
if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
|
|
ri->i_inline |= F2FS_COMPRESS_RELEASED;
|
|
}
|
|
|
|
static inline int f2fs_has_extra_attr(struct inode *inode)
|
|
{
|
|
return is_inode_flag_set(inode, FI_EXTRA_ATTR);
|
|
}
|
|
|
|
static inline int f2fs_has_inline_xattr(struct inode *inode)
|
|
{
|
|
return is_inode_flag_set(inode, FI_INLINE_XATTR);
|
|
}
|
|
|
|
static inline int f2fs_compressed_file(struct inode *inode)
|
|
{
|
|
return S_ISREG(inode->i_mode) &&
|
|
is_inode_flag_set(inode, FI_COMPRESSED_FILE);
|
|
}
|
|
|
|
static inline bool f2fs_need_compress_data(struct inode *inode)
|
|
{
|
|
int compress_mode = F2FS_OPTION(F2FS_I_SB(inode)).compress_mode;
|
|
|
|
if (!f2fs_compressed_file(inode))
|
|
return false;
|
|
|
|
if (compress_mode == COMPR_MODE_FS)
|
|
return true;
|
|
else if (compress_mode == COMPR_MODE_USER &&
|
|
is_inode_flag_set(inode, FI_ENABLE_COMPRESS))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static inline unsigned int addrs_per_inode(struct inode *inode)
|
|
{
|
|
unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
|
|
get_inline_xattr_addrs(inode);
|
|
|
|
if (!f2fs_compressed_file(inode))
|
|
return addrs;
|
|
return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size);
|
|
}
|
|
|
|
static inline unsigned int addrs_per_block(struct inode *inode)
|
|
{
|
|
if (!f2fs_compressed_file(inode))
|
|
return DEF_ADDRS_PER_BLOCK;
|
|
return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size);
|
|
}
|
|
|
|
static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
|
|
{
|
|
struct f2fs_inode *ri = F2FS_INODE(page);
|
|
|
|
return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
|
|
get_inline_xattr_addrs(inode)]);
|
|
}
|
|
|
|
static inline int inline_xattr_size(struct inode *inode)
|
|
{
|
|
if (f2fs_has_inline_xattr(inode))
|
|
return get_inline_xattr_addrs(inode) * sizeof(__le32);
|
|
return 0;
|
|
}
|
|
|
|
static inline int f2fs_has_inline_data(struct inode *inode)
|
|
{
|
|
return is_inode_flag_set(inode, FI_INLINE_DATA);
|
|
}
|
|
|
|
static inline int f2fs_exist_data(struct inode *inode)
|
|
{
|
|
return is_inode_flag_set(inode, FI_DATA_EXIST);
|
|
}
|
|
|
|
static inline int f2fs_has_inline_dots(struct inode *inode)
|
|
{
|
|
return is_inode_flag_set(inode, FI_INLINE_DOTS);
|
|
}
|
|
|
|
static inline int f2fs_is_mmap_file(struct inode *inode)
|
|
{
|
|
return is_inode_flag_set(inode, FI_MMAP_FILE);
|
|
}
|
|
|
|
static inline bool f2fs_is_pinned_file(struct inode *inode)
|
|
{
|
|
return is_inode_flag_set(inode, FI_PIN_FILE);
|
|
}
|
|
|
|
static inline bool f2fs_is_atomic_file(struct inode *inode)
|
|
{
|
|
return is_inode_flag_set(inode, FI_ATOMIC_FILE);
|
|
}
|
|
|
|
static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
|
|
{
|
|
return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
|
|
}
|
|
|
|
static inline bool f2fs_is_volatile_file(struct inode *inode)
|
|
{
|
|
return is_inode_flag_set(inode, FI_VOLATILE_FILE);
|
|
}
|
|
|
|
static inline bool f2fs_is_first_block_written(struct inode *inode)
|
|
{
|
|
return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
|
|
}
|
|
|
|
static inline bool f2fs_is_drop_cache(struct inode *inode)
|
|
{
|
|
return is_inode_flag_set(inode, FI_DROP_CACHE);
|
|
}
|
|
|
|
static inline void *inline_data_addr(struct inode *inode, struct page *page)
|
|
{
|
|
struct f2fs_inode *ri = F2FS_INODE(page);
|
|
int extra_size = get_extra_isize(inode);
|
|
|
|
return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
|
|
}
|
|
|
|
static inline int f2fs_has_inline_dentry(struct inode *inode)
|
|
{
|
|
return is_inode_flag_set(inode, FI_INLINE_DENTRY);
|
|
}
|
|
|
|
static inline int is_file(struct inode *inode, int type)
|
|
{
|
|
return F2FS_I(inode)->i_advise & type;
|
|
}
|
|
|
|
static inline void set_file(struct inode *inode, int type)
|
|
{
|
|
if (is_file(inode, type))
|
|
return;
|
|
F2FS_I(inode)->i_advise |= type;
|
|
f2fs_mark_inode_dirty_sync(inode, true);
|
|
}
|
|
|
|
static inline void clear_file(struct inode *inode, int type)
|
|
{
|
|
if (!is_file(inode, type))
|
|
return;
|
|
F2FS_I(inode)->i_advise &= ~type;
|
|
f2fs_mark_inode_dirty_sync(inode, true);
|
|
}
|
|
|
|
static inline bool f2fs_is_time_consistent(struct inode *inode)
|
|
{
|
|
if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
|
|
return false;
|
|
if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
|
|
return false;
|
|
if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
|
|
return false;
|
|
if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
|
|
&F2FS_I(inode)->i_crtime))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
|
|
{
|
|
bool ret;
|
|
|
|
if (dsync) {
|
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
|
|
|
|
spin_lock(&sbi->inode_lock[DIRTY_META]);
|
|
ret = list_empty(&F2FS_I(inode)->gdirty_list);
|
|
spin_unlock(&sbi->inode_lock[DIRTY_META]);
|
|
return ret;
|
|
}
|
|
if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
|
|
file_keep_isize(inode) ||
|
|
i_size_read(inode) & ~PAGE_MASK)
|
|
return false;
|
|
|
|
if (!f2fs_is_time_consistent(inode))
|
|
return false;
|
|
|
|
spin_lock(&F2FS_I(inode)->i_size_lock);
|
|
ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
|
|
spin_unlock(&F2FS_I(inode)->i_size_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline bool f2fs_readonly(struct super_block *sb)
|
|
{
|
|
return sb_rdonly(sb);
|
|
}
|
|
|
|
static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
|
|
{
|
|
return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
|
|
}
|
|
|
|
static inline bool is_dot_dotdot(const u8 *name, size_t len)
|
|
{
|
|
if (len == 1 && name[0] == '.')
|
|
return true;
|
|
|
|
if (len == 2 && name[0] == '.' && name[1] == '.')
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
|
|
size_t size, gfp_t flags)
|
|
{
|
|
if (time_to_inject(sbi, FAULT_KMALLOC)) {
|
|
f2fs_show_injection_info(sbi, FAULT_KMALLOC);
|
|
return NULL;
|
|
}
|
|
|
|
return kmalloc(size, flags);
|
|
}
|
|
|
|
static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
|
|
size_t size, gfp_t flags)
|
|
{
|
|
return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
|
|
}
|
|
|
|
static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
|
|
size_t size, gfp_t flags)
|
|
{
|
|
if (time_to_inject(sbi, FAULT_KVMALLOC)) {
|
|
f2fs_show_injection_info(sbi, FAULT_KVMALLOC);
|
|
return NULL;
|
|
}
|
|
|
|
return kvmalloc(size, flags);
|
|
}
|
|
|
|
static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
|
|
size_t size, gfp_t flags)
|
|
{
|
|
return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
|
|
}
|
|
|
|
static inline int get_extra_isize(struct inode *inode)
|
|
{
|
|
return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
|
|
}
|
|
|
|
static inline int get_inline_xattr_addrs(struct inode *inode)
|
|
{
|
|
return F2FS_I(inode)->i_inline_xattr_size;
|
|
}
|
|
|
|
#define f2fs_get_inode_mode(i) \
|
|
((is_inode_flag_set(i, FI_ACL_MODE)) ? \
|
|
(F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
|
|
|
|
#define F2FS_TOTAL_EXTRA_ATTR_SIZE \
|
|
(offsetof(struct f2fs_inode, i_extra_end) - \
|
|
offsetof(struct f2fs_inode, i_extra_isize)) \
|
|
|
|
#define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
|
|
#define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
|
|
((offsetof(typeof(*(f2fs_inode)), field) + \
|
|
sizeof((f2fs_inode)->field)) \
|
|
<= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
|
|
|
|
#define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
|
|
|
|
#define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
|
|
|
|
bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
|
|
block_t blkaddr, int type);
|
|
static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
|
|
block_t blkaddr, int type)
|
|
{
|
|
if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
|
|
f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
|
|
blkaddr, type);
|
|
f2fs_bug_on(sbi, 1);
|
|
}
|
|
}
|
|
|
|
static inline bool __is_valid_data_blkaddr(block_t blkaddr)
|
|
{
|
|
if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR ||
|
|
blkaddr == COMPRESS_ADDR)
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* file.c
|
|
*/
|
|
int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
|
|
void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
|
|
int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock);
|
|
int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
|
|
int f2fs_truncate(struct inode *inode);
|
|
int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path,
|
|
struct kstat *stat, u32 request_mask, unsigned int flags);
|
|
int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
|
|
struct iattr *attr);
|
|
int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
|
|
void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
|
|
int f2fs_precache_extents(struct inode *inode);
|
|
int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa);
|
|
int f2fs_fileattr_set(struct user_namespace *mnt_userns,
|
|
struct dentry *dentry, struct fileattr *fa);
|
|
long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
|
|
long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
|
|
int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
|
|
int f2fs_pin_file_control(struct inode *inode, bool inc);
|
|
|
|
/*
|
|
* inode.c
|
|
*/
|
|
void f2fs_set_inode_flags(struct inode *inode);
|
|
bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
|
|
void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
|
|
struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
|
|
struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
|
|
int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
|
|
void f2fs_update_inode(struct inode *inode, struct page *node_page);
|
|
void f2fs_update_inode_page(struct inode *inode);
|
|
int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
|
|
void f2fs_evict_inode(struct inode *inode);
|
|
void f2fs_handle_failed_inode(struct inode *inode);
|
|
|
|
/*
|
|
* namei.c
|
|
*/
|
|
int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
|
|
bool hot, bool set);
|
|
struct dentry *f2fs_get_parent(struct dentry *child);
|
|
|
|
/*
|
|
* dir.c
|
|
*/
|
|
unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
|
|
int f2fs_init_casefolded_name(const struct inode *dir,
|
|
struct f2fs_filename *fname);
|
|
int f2fs_setup_filename(struct inode *dir, const struct qstr *iname,
|
|
int lookup, struct f2fs_filename *fname);
|
|
int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry,
|
|
struct f2fs_filename *fname);
|
|
void f2fs_free_filename(struct f2fs_filename *fname);
|
|
struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d,
|
|
const struct f2fs_filename *fname, int *max_slots);
|
|
int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
|
|
unsigned int start_pos, struct fscrypt_str *fstr);
|
|
void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
|
|
struct f2fs_dentry_ptr *d);
|
|
struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
|
|
const struct f2fs_filename *fname, struct page *dpage);
|
|
void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
|
|
unsigned int current_depth);
|
|
int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
|
|
void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
|
|
struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
|
|
const struct f2fs_filename *fname,
|
|
struct page **res_page);
|
|
struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
|
|
const struct qstr *child, struct page **res_page);
|
|
struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
|
|
ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
|
|
struct page **page);
|
|
void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
|
|
struct page *page, struct inode *inode);
|
|
bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
|
|
const struct f2fs_filename *fname);
|
|
void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
|
|
const struct fscrypt_str *name, f2fs_hash_t name_hash,
|
|
unsigned int bit_pos);
|
|
int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
|
|
struct inode *inode, nid_t ino, umode_t mode);
|
|
int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname,
|
|
struct inode *inode, nid_t ino, umode_t mode);
|
|
int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
|
|
struct inode *inode, nid_t ino, umode_t mode);
|
|
void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
|
|
struct inode *dir, struct inode *inode);
|
|
int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
|
|
bool f2fs_empty_dir(struct inode *dir);
|
|
|
|
static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
|
|
{
|
|
if (fscrypt_is_nokey_name(dentry))
|
|
return -ENOKEY;
|
|
return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
|
|
inode, inode->i_ino, inode->i_mode);
|
|
}
|
|
|
|
/*
|
|
* super.c
|
|
*/
|
|
int f2fs_inode_dirtied(struct inode *inode, bool sync);
|
|
void f2fs_inode_synced(struct inode *inode);
|
|
int f2fs_dquot_initialize(struct inode *inode);
|
|
int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
|
|
int f2fs_quota_sync(struct super_block *sb, int type);
|
|
loff_t max_file_blocks(struct inode *inode);
|
|
void f2fs_quota_off_umount(struct super_block *sb);
|
|
int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
|
|
int f2fs_sync_fs(struct super_block *sb, int sync);
|
|
int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
|
|
|
|
/*
|
|
* hash.c
|
|
*/
|
|
void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname);
|
|
|
|
/*
|
|
* node.c
|
|
*/
|
|
struct node_info;
|
|
|
|
int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
|
|
bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
|
|
bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
|
|
void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
|
|
void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
|
|
void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
|
|
int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
|
|
bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
|
|
bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
|
|
int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
|
|
struct node_info *ni, bool checkpoint_context);
|
|
pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
|
|
int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
|
|
int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
|
|
int f2fs_truncate_xattr_node(struct inode *inode);
|
|
int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
|
|
unsigned int seq_id);
|
|
bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi);
|
|
int f2fs_remove_inode_page(struct inode *inode);
|
|
struct page *f2fs_new_inode_page(struct inode *inode);
|
|
struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
|
|
void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
|
|
struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
|
|
struct page *f2fs_get_node_page_ra(struct page *parent, int start);
|
|
int f2fs_move_node_page(struct page *node_page, int gc_type);
|
|
void f2fs_flush_inline_data(struct f2fs_sb_info *sbi);
|
|
int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
|
|
struct writeback_control *wbc, bool atomic,
|
|
unsigned int *seq_id);
|
|
int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
|
|
struct writeback_control *wbc,
|
|
bool do_balance, enum iostat_type io_type);
|
|
int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
|
|
bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
|
|
void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
|
|
void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
|
|
int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
|
|
int f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
|
|
int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
|
|
int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
|
|
int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
|
|
unsigned int segno, struct f2fs_summary_block *sum);
|
|
void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi);
|
|
int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
|
|
int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
|
|
void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
|
|
int __init f2fs_create_node_manager_caches(void);
|
|
void f2fs_destroy_node_manager_caches(void);
|
|
|
|
/*
|
|
* segment.c
|
|
*/
|
|
bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
|
|
void f2fs_register_inmem_page(struct inode *inode, struct page *page);
|
|
void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
|
|
void f2fs_drop_inmem_pages(struct inode *inode);
|
|
void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
|
|
int f2fs_commit_inmem_pages(struct inode *inode);
|
|
void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
|
|
void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg);
|
|
int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
|
|
int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
|
|
int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
|
|
void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
|
|
void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
|
|
bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
|
|
int f2fs_start_discard_thread(struct f2fs_sb_info *sbi);
|
|
void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
|
|
void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
|
|
bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
|
|
void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
|
|
struct cp_control *cpc);
|
|
void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
|
|
block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
|
|
int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
|
|
void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
|
|
int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
|
|
bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno);
|
|
void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi);
|
|
void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi);
|
|
void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi);
|
|
void f2fs_get_new_segment(struct f2fs_sb_info *sbi,
|
|
unsigned int *newseg, bool new_sec, int dir);
|
|
void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
|
|
unsigned int start, unsigned int end);
|
|
void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force);
|
|
void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
|
|
int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
|
|
bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
|
|
struct cp_control *cpc);
|
|
struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
|
|
void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
|
|
block_t blk_addr);
|
|
void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
|
|
enum iostat_type io_type);
|
|
void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
|
|
void f2fs_outplace_write_data(struct dnode_of_data *dn,
|
|
struct f2fs_io_info *fio);
|
|
int f2fs_inplace_write_data(struct f2fs_io_info *fio);
|
|
void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
|
|
block_t old_blkaddr, block_t new_blkaddr,
|
|
bool recover_curseg, bool recover_newaddr,
|
|
bool from_gc);
|
|
void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
|
|
block_t old_addr, block_t new_addr,
|
|
unsigned char version, bool recover_curseg,
|
|
bool recover_newaddr);
|
|
void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
|
|
block_t old_blkaddr, block_t *new_blkaddr,
|
|
struct f2fs_summary *sum, int type,
|
|
struct f2fs_io_info *fio);
|
|
void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
|
|
block_t blkaddr, unsigned int blkcnt);
|
|
void f2fs_wait_on_page_writeback(struct page *page,
|
|
enum page_type type, bool ordered, bool locked);
|
|
void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
|
|
void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
|
|
block_t len);
|
|
void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
|
|
void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
|
|
int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
|
|
unsigned int val, int alloc);
|
|
void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
|
|
int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
|
|
int f2fs_check_write_pointer(struct f2fs_sb_info *sbi);
|
|
int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
|
|
void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
|
|
int __init f2fs_create_segment_manager_caches(void);
|
|
void f2fs_destroy_segment_manager_caches(void);
|
|
int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
|
|
enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
|
|
enum page_type type, enum temp_type temp);
|
|
unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
|
|
unsigned int segno);
|
|
unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi,
|
|
unsigned int segno);
|
|
|
|
#define DEF_FRAGMENT_SIZE 4
|
|
#define MIN_FRAGMENT_SIZE 1
|
|
#define MAX_FRAGMENT_SIZE 512
|
|
|
|
static inline bool f2fs_need_rand_seg(struct f2fs_sb_info *sbi)
|
|
{
|
|
return F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG ||
|
|
F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK;
|
|
}
|
|
|
|
/*
|
|
* checkpoint.c
|
|
*/
|
|
void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
|
|
struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
|
|
struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
|
|
struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index);
|
|
struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
|
|
bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
|
|
block_t blkaddr, int type);
|
|
int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
|
|
int type, bool sync);
|
|
void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
|
|
long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
|
|
long nr_to_write, enum iostat_type io_type);
|
|
void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
|
|
void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
|
|
void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
|
|
bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
|
|
void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
|
|
unsigned int devidx, int type);
|
|
bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
|
|
unsigned int devidx, int type);
|
|
int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
|
|
int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
|
|
void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
|
|
void f2fs_add_orphan_inode(struct inode *inode);
|
|
void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
|
|
int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
|
|
int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
|
|
void f2fs_update_dirty_page(struct inode *inode, struct page *page);
|
|
void f2fs_remove_dirty_inode(struct inode *inode);
|
|
int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
|
|
void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type);
|
|
u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi);
|
|
int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
|
|
void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
|
|
int __init f2fs_create_checkpoint_caches(void);
|
|
void f2fs_destroy_checkpoint_caches(void);
|
|
int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi);
|
|
int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi);
|
|
void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi);
|
|
void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi);
|
|
|
|
/*
|
|
* data.c
|
|
*/
|
|
int __init f2fs_init_bioset(void);
|
|
void f2fs_destroy_bioset(void);
|
|
int f2fs_init_bio_entry_cache(void);
|
|
void f2fs_destroy_bio_entry_cache(void);
|
|
void f2fs_submit_bio(struct f2fs_sb_info *sbi,
|
|
struct bio *bio, enum page_type type);
|
|
void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
|
|
void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
|
|
struct inode *inode, struct page *page,
|
|
nid_t ino, enum page_type type);
|
|
void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
|
|
struct bio **bio, struct page *page);
|
|
void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
|
|
int f2fs_submit_page_bio(struct f2fs_io_info *fio);
|
|
int f2fs_merge_page_bio(struct f2fs_io_info *fio);
|
|
void f2fs_submit_page_write(struct f2fs_io_info *fio);
|
|
struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
|
|
block_t blk_addr, struct bio *bio);
|
|
int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
|
|
void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
|
|
void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
|
|
int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
|
|
int f2fs_reserve_new_block(struct dnode_of_data *dn);
|
|
int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
|
|
int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
|
|
struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
|
|
int op_flags, bool for_write);
|
|
struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
|
|
struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
|
|
bool for_write);
|
|
struct page *f2fs_get_new_data_page(struct inode *inode,
|
|
struct page *ipage, pgoff_t index, bool new_i_size);
|
|
int f2fs_do_write_data_page(struct f2fs_io_info *fio);
|
|
void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
|
|
int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
|
|
int create, int flag);
|
|
int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
|
|
u64 start, u64 len);
|
|
int f2fs_encrypt_one_page(struct f2fs_io_info *fio);
|
|
bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
|
|
bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
|
|
int f2fs_write_single_data_page(struct page *page, int *submitted,
|
|
struct bio **bio, sector_t *last_block,
|
|
struct writeback_control *wbc,
|
|
enum iostat_type io_type,
|
|
int compr_blocks, bool allow_balance);
|
|
void f2fs_write_failed(struct inode *inode, loff_t to);
|
|
void f2fs_invalidate_page(struct page *page, unsigned int offset,
|
|
unsigned int length);
|
|
int f2fs_release_page(struct page *page, gfp_t wait);
|
|
#ifdef CONFIG_MIGRATION
|
|
int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
|
|
struct page *page, enum migrate_mode mode);
|
|
#endif
|
|
bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
|
|
void f2fs_clear_page_cache_dirty_tag(struct page *page);
|
|
int f2fs_init_post_read_processing(void);
|
|
void f2fs_destroy_post_read_processing(void);
|
|
int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
|
|
void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
|
|
extern const struct iomap_ops f2fs_iomap_ops;
|
|
|
|
/*
|
|
* gc.c
|
|
*/
|
|
int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
|
|
void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
|
|
block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
|
|
int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, bool force,
|
|
unsigned int segno);
|
|
void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
|
|
int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count);
|
|
int __init f2fs_create_garbage_collection_cache(void);
|
|
void f2fs_destroy_garbage_collection_cache(void);
|
|
|
|
/*
|
|
* recovery.c
|
|
*/
|
|
int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
|
|
bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
|
|
int __init f2fs_create_recovery_cache(void);
|
|
void f2fs_destroy_recovery_cache(void);
|
|
|
|
/*
|
|
* debug.c
|
|
*/
|
|
#ifdef CONFIG_F2FS_STAT_FS
|
|
struct f2fs_stat_info {
|
|
struct list_head stat_list;
|
|
struct f2fs_sb_info *sbi;
|
|
int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
|
|
int main_area_segs, main_area_sections, main_area_zones;
|
|
unsigned long long hit_largest, hit_cached, hit_rbtree;
|
|
unsigned long long hit_total, total_ext;
|
|
int ext_tree, zombie_tree, ext_node;
|
|
int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
|
|
int ndirty_data, ndirty_qdata;
|
|
int inmem_pages;
|
|
unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
|
|
int nats, dirty_nats, sits, dirty_sits;
|
|
int free_nids, avail_nids, alloc_nids;
|
|
int total_count, utilization;
|
|
int bg_gc, nr_wb_cp_data, nr_wb_data;
|
|
int nr_rd_data, nr_rd_node, nr_rd_meta;
|
|
int nr_dio_read, nr_dio_write;
|
|
unsigned int io_skip_bggc, other_skip_bggc;
|
|
int nr_flushing, nr_flushed, flush_list_empty;
|
|
int nr_discarding, nr_discarded;
|
|
int nr_discard_cmd;
|
|
unsigned int undiscard_blks;
|
|
int nr_issued_ckpt, nr_total_ckpt, nr_queued_ckpt;
|
|
unsigned int cur_ckpt_time, peak_ckpt_time;
|
|
int inline_xattr, inline_inode, inline_dir, append, update, orphans;
|
|
int compr_inode;
|
|
unsigned long long compr_blocks;
|
|
int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
|
|
unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
|
|
unsigned int bimodal, avg_vblocks;
|
|
int util_free, util_valid, util_invalid;
|
|
int rsvd_segs, overp_segs;
|
|
int dirty_count, node_pages, meta_pages, compress_pages;
|
|
int compress_page_hit;
|
|
int prefree_count, call_count, cp_count, bg_cp_count;
|
|
int tot_segs, node_segs, data_segs, free_segs, free_secs;
|
|
int bg_node_segs, bg_data_segs;
|
|
int tot_blks, data_blks, node_blks;
|
|
int bg_data_blks, bg_node_blks;
|
|
unsigned long long skipped_atomic_files[2];
|
|
int curseg[NR_CURSEG_TYPE];
|
|
int cursec[NR_CURSEG_TYPE];
|
|
int curzone[NR_CURSEG_TYPE];
|
|
unsigned int dirty_seg[NR_CURSEG_TYPE];
|
|
unsigned int full_seg[NR_CURSEG_TYPE];
|
|
unsigned int valid_blks[NR_CURSEG_TYPE];
|
|
|
|
unsigned int meta_count[META_MAX];
|
|
unsigned int segment_count[2];
|
|
unsigned int block_count[2];
|
|
unsigned int inplace_count;
|
|
unsigned long long base_mem, cache_mem, page_mem;
|
|
};
|
|
|
|
static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
|
|
{
|
|
return (struct f2fs_stat_info *)sbi->stat_info;
|
|
}
|
|
|
|
#define stat_inc_cp_count(si) ((si)->cp_count++)
|
|
#define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
|
|
#define stat_inc_call_count(si) ((si)->call_count++)
|
|
#define stat_inc_bggc_count(si) ((si)->bg_gc++)
|
|
#define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
|
|
#define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
|
|
#define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
|
|
#define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
|
|
#define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
|
|
#define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
|
|
#define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
|
|
#define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
|
|
#define stat_inc_inline_xattr(inode) \
|
|
do { \
|
|
if (f2fs_has_inline_xattr(inode)) \
|
|
(atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
|
|
} while (0)
|
|
#define stat_dec_inline_xattr(inode) \
|
|
do { \
|
|
if (f2fs_has_inline_xattr(inode)) \
|
|
(atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
|
|
} while (0)
|
|
#define stat_inc_inline_inode(inode) \
|
|
do { \
|
|
if (f2fs_has_inline_data(inode)) \
|
|
(atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
|
|
} while (0)
|
|
#define stat_dec_inline_inode(inode) \
|
|
do { \
|
|
if (f2fs_has_inline_data(inode)) \
|
|
(atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
|
|
} while (0)
|
|
#define stat_inc_inline_dir(inode) \
|
|
do { \
|
|
if (f2fs_has_inline_dentry(inode)) \
|
|
(atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
|
|
} while (0)
|
|
#define stat_dec_inline_dir(inode) \
|
|
do { \
|
|
if (f2fs_has_inline_dentry(inode)) \
|
|
(atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
|
|
} while (0)
|
|
#define stat_inc_compr_inode(inode) \
|
|
do { \
|
|
if (f2fs_compressed_file(inode)) \
|
|
(atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \
|
|
} while (0)
|
|
#define stat_dec_compr_inode(inode) \
|
|
do { \
|
|
if (f2fs_compressed_file(inode)) \
|
|
(atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \
|
|
} while (0)
|
|
#define stat_add_compr_blocks(inode, blocks) \
|
|
(atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks))
|
|
#define stat_sub_compr_blocks(inode, blocks) \
|
|
(atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks))
|
|
#define stat_inc_meta_count(sbi, blkaddr) \
|
|
do { \
|
|
if (blkaddr < SIT_I(sbi)->sit_base_addr) \
|
|
atomic_inc(&(sbi)->meta_count[META_CP]); \
|
|
else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
|
|
atomic_inc(&(sbi)->meta_count[META_SIT]); \
|
|
else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
|
|
atomic_inc(&(sbi)->meta_count[META_NAT]); \
|
|
else if (blkaddr < SM_I(sbi)->main_blkaddr) \
|
|
atomic_inc(&(sbi)->meta_count[META_SSA]); \
|
|
} while (0)
|
|
#define stat_inc_seg_type(sbi, curseg) \
|
|
((sbi)->segment_count[(curseg)->alloc_type]++)
|
|
#define stat_inc_block_count(sbi, curseg) \
|
|
((sbi)->block_count[(curseg)->alloc_type]++)
|
|
#define stat_inc_inplace_blocks(sbi) \
|
|
(atomic_inc(&(sbi)->inplace_count))
|
|
#define stat_update_max_atomic_write(inode) \
|
|
do { \
|
|
int cur = F2FS_I_SB(inode)->atomic_files; \
|
|
int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
|
|
if (cur > max) \
|
|
atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
|
|
} while (0)
|
|
#define stat_inc_volatile_write(inode) \
|
|
(atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
|
|
#define stat_dec_volatile_write(inode) \
|
|
(atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
|
|
#define stat_update_max_volatile_write(inode) \
|
|
do { \
|
|
int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
|
|
int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
|
|
if (cur > max) \
|
|
atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
|
|
} while (0)
|
|
#define stat_inc_seg_count(sbi, type, gc_type) \
|
|
do { \
|
|
struct f2fs_stat_info *si = F2FS_STAT(sbi); \
|
|
si->tot_segs++; \
|
|
if ((type) == SUM_TYPE_DATA) { \
|
|
si->data_segs++; \
|
|
si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
|
|
} else { \
|
|
si->node_segs++; \
|
|
si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define stat_inc_tot_blk_count(si, blks) \
|
|
((si)->tot_blks += (blks))
|
|
|
|
#define stat_inc_data_blk_count(sbi, blks, gc_type) \
|
|
do { \
|
|
struct f2fs_stat_info *si = F2FS_STAT(sbi); \
|
|
stat_inc_tot_blk_count(si, blks); \
|
|
si->data_blks += (blks); \
|
|
si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
|
|
} while (0)
|
|
|
|
#define stat_inc_node_blk_count(sbi, blks, gc_type) \
|
|
do { \
|
|
struct f2fs_stat_info *si = F2FS_STAT(sbi); \
|
|
stat_inc_tot_blk_count(si, blks); \
|
|
si->node_blks += (blks); \
|
|
si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
|
|
} while (0)
|
|
|
|
int f2fs_build_stats(struct f2fs_sb_info *sbi);
|
|
void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
|
|
void __init f2fs_create_root_stats(void);
|
|
void f2fs_destroy_root_stats(void);
|
|
void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
|
|
#else
|
|
#define stat_inc_cp_count(si) do { } while (0)
|
|
#define stat_inc_bg_cp_count(si) do { } while (0)
|
|
#define stat_inc_call_count(si) do { } while (0)
|
|
#define stat_inc_bggc_count(si) do { } while (0)
|
|
#define stat_io_skip_bggc_count(sbi) do { } while (0)
|
|
#define stat_other_skip_bggc_count(sbi) do { } while (0)
|
|
#define stat_inc_dirty_inode(sbi, type) do { } while (0)
|
|
#define stat_dec_dirty_inode(sbi, type) do { } while (0)
|
|
#define stat_inc_total_hit(sbi) do { } while (0)
|
|
#define stat_inc_rbtree_node_hit(sbi) do { } while (0)
|
|
#define stat_inc_largest_node_hit(sbi) do { } while (0)
|
|
#define stat_inc_cached_node_hit(sbi) do { } while (0)
|
|
#define stat_inc_inline_xattr(inode) do { } while (0)
|
|
#define stat_dec_inline_xattr(inode) do { } while (0)
|
|
#define stat_inc_inline_inode(inode) do { } while (0)
|
|
#define stat_dec_inline_inode(inode) do { } while (0)
|
|
#define stat_inc_inline_dir(inode) do { } while (0)
|
|
#define stat_dec_inline_dir(inode) do { } while (0)
|
|
#define stat_inc_compr_inode(inode) do { } while (0)
|
|
#define stat_dec_compr_inode(inode) do { } while (0)
|
|
#define stat_add_compr_blocks(inode, blocks) do { } while (0)
|
|
#define stat_sub_compr_blocks(inode, blocks) do { } while (0)
|
|
#define stat_update_max_atomic_write(inode) do { } while (0)
|
|
#define stat_inc_volatile_write(inode) do { } while (0)
|
|
#define stat_dec_volatile_write(inode) do { } while (0)
|
|
#define stat_update_max_volatile_write(inode) do { } while (0)
|
|
#define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
|
|
#define stat_inc_seg_type(sbi, curseg) do { } while (0)
|
|
#define stat_inc_block_count(sbi, curseg) do { } while (0)
|
|
#define stat_inc_inplace_blocks(sbi) do { } while (0)
|
|
#define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
|
|
#define stat_inc_tot_blk_count(si, blks) do { } while (0)
|
|
#define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
|
|
#define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
|
|
|
|
static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
|
|
static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
|
|
static inline void __init f2fs_create_root_stats(void) { }
|
|
static inline void f2fs_destroy_root_stats(void) { }
|
|
static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
|
|
#endif
|
|
|
|
extern const struct file_operations f2fs_dir_operations;
|
|
extern const struct file_operations f2fs_file_operations;
|
|
extern const struct inode_operations f2fs_file_inode_operations;
|
|
extern const struct address_space_operations f2fs_dblock_aops;
|
|
extern const struct address_space_operations f2fs_node_aops;
|
|
extern const struct address_space_operations f2fs_meta_aops;
|
|
extern const struct inode_operations f2fs_dir_inode_operations;
|
|
extern const struct inode_operations f2fs_symlink_inode_operations;
|
|
extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
|
|
extern const struct inode_operations f2fs_special_inode_operations;
|
|
extern struct kmem_cache *f2fs_inode_entry_slab;
|
|
|
|
/*
|
|
* inline.c
|
|
*/
|
|
bool f2fs_may_inline_data(struct inode *inode);
|
|
bool f2fs_may_inline_dentry(struct inode *inode);
|
|
void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
|
|
void f2fs_truncate_inline_inode(struct inode *inode,
|
|
struct page *ipage, u64 from);
|
|
int f2fs_read_inline_data(struct inode *inode, struct page *page);
|
|
int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
|
|
int f2fs_convert_inline_inode(struct inode *inode);
|
|
int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry);
|
|
int f2fs_write_inline_data(struct inode *inode, struct page *page);
|
|
int f2fs_recover_inline_data(struct inode *inode, struct page *npage);
|
|
struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
|
|
const struct f2fs_filename *fname,
|
|
struct page **res_page);
|
|
int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
|
|
struct page *ipage);
|
|
int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
|
|
struct inode *inode, nid_t ino, umode_t mode);
|
|
void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
|
|
struct page *page, struct inode *dir,
|
|
struct inode *inode);
|
|
bool f2fs_empty_inline_dir(struct inode *dir);
|
|
int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
|
|
struct fscrypt_str *fstr);
|
|
int f2fs_inline_data_fiemap(struct inode *inode,
|
|
struct fiemap_extent_info *fieinfo,
|
|
__u64 start, __u64 len);
|
|
|
|
/*
|
|
* shrinker.c
|
|
*/
|
|
unsigned long f2fs_shrink_count(struct shrinker *shrink,
|
|
struct shrink_control *sc);
|
|
unsigned long f2fs_shrink_scan(struct shrinker *shrink,
|
|
struct shrink_control *sc);
|
|
void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
|
|
void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
|
|
|
|
/*
|
|
* extent_cache.c
|
|
*/
|
|
struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
|
|
struct rb_entry *cached_re, unsigned int ofs);
|
|
struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi,
|
|
struct rb_root_cached *root,
|
|
struct rb_node **parent,
|
|
unsigned long long key, bool *left_most);
|
|
struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
|
|
struct rb_root_cached *root,
|
|
struct rb_node **parent,
|
|
unsigned int ofs, bool *leftmost);
|
|
struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
|
|
struct rb_entry *cached_re, unsigned int ofs,
|
|
struct rb_entry **prev_entry, struct rb_entry **next_entry,
|
|
struct rb_node ***insert_p, struct rb_node **insert_parent,
|
|
bool force, bool *leftmost);
|
|
bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
|
|
struct rb_root_cached *root, bool check_key);
|
|
unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
|
|
void f2fs_init_extent_tree(struct inode *inode, struct page *ipage);
|
|
void f2fs_drop_extent_tree(struct inode *inode);
|
|
unsigned int f2fs_destroy_extent_node(struct inode *inode);
|
|
void f2fs_destroy_extent_tree(struct inode *inode);
|
|
bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
|
|
struct extent_info *ei);
|
|
void f2fs_update_extent_cache(struct dnode_of_data *dn);
|
|
void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
|
|
pgoff_t fofs, block_t blkaddr, unsigned int len);
|
|
void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
|
|
int __init f2fs_create_extent_cache(void);
|
|
void f2fs_destroy_extent_cache(void);
|
|
|
|
/*
|
|
* sysfs.c
|
|
*/
|
|
#define MIN_RA_MUL 2
|
|
#define MAX_RA_MUL 256
|
|
|
|
int __init f2fs_init_sysfs(void);
|
|
void f2fs_exit_sysfs(void);
|
|
int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
|
|
void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
|
|
|
|
/* verity.c */
|
|
extern const struct fsverity_operations f2fs_verityops;
|
|
|
|
/*
|
|
* crypto support
|
|
*/
|
|
static inline bool f2fs_encrypted_file(struct inode *inode)
|
|
{
|
|
return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
|
|
}
|
|
|
|
static inline void f2fs_set_encrypted_inode(struct inode *inode)
|
|
{
|
|
#ifdef CONFIG_FS_ENCRYPTION
|
|
file_set_encrypt(inode);
|
|
f2fs_set_inode_flags(inode);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Returns true if the reads of the inode's data need to undergo some
|
|
* postprocessing step, like decryption or authenticity verification.
|
|
*/
|
|
static inline bool f2fs_post_read_required(struct inode *inode)
|
|
{
|
|
return f2fs_encrypted_file(inode) || fsverity_active(inode) ||
|
|
f2fs_compressed_file(inode);
|
|
}
|
|
|
|
/*
|
|
* compress.c
|
|
*/
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION
|
|
bool f2fs_is_compressed_page(struct page *page);
|
|
struct page *f2fs_compress_control_page(struct page *page);
|
|
int f2fs_prepare_compress_overwrite(struct inode *inode,
|
|
struct page **pagep, pgoff_t index, void **fsdata);
|
|
bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
|
|
pgoff_t index, unsigned copied);
|
|
int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock);
|
|
void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
|
|
bool f2fs_is_compress_backend_ready(struct inode *inode);
|
|
int f2fs_init_compress_mempool(void);
|
|
void f2fs_destroy_compress_mempool(void);
|
|
void f2fs_decompress_cluster(struct decompress_io_ctx *dic);
|
|
void f2fs_end_read_compressed_page(struct page *page, bool failed,
|
|
block_t blkaddr);
|
|
bool f2fs_cluster_is_empty(struct compress_ctx *cc);
|
|
bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
|
|
bool f2fs_all_cluster_page_loaded(struct compress_ctx *cc, struct pagevec *pvec,
|
|
int index, int nr_pages);
|
|
bool f2fs_sanity_check_cluster(struct dnode_of_data *dn);
|
|
void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
|
|
int f2fs_write_multi_pages(struct compress_ctx *cc,
|
|
int *submitted,
|
|
struct writeback_control *wbc,
|
|
enum iostat_type io_type);
|
|
int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
|
|
void f2fs_update_extent_tree_range_compressed(struct inode *inode,
|
|
pgoff_t fofs, block_t blkaddr, unsigned int llen,
|
|
unsigned int c_len);
|
|
int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
|
|
unsigned nr_pages, sector_t *last_block_in_bio,
|
|
bool is_readahead, bool for_write);
|
|
struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
|
|
void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed);
|
|
void f2fs_put_page_dic(struct page *page);
|
|
unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn);
|
|
int f2fs_init_compress_ctx(struct compress_ctx *cc);
|
|
void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
|
|
void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
|
|
int f2fs_init_compress_inode(struct f2fs_sb_info *sbi);
|
|
void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi);
|
|
int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
|
|
void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
|
|
int __init f2fs_init_compress_cache(void);
|
|
void f2fs_destroy_compress_cache(void);
|
|
struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
|
|
void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi, block_t blkaddr);
|
|
void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
|
|
nid_t ino, block_t blkaddr);
|
|
bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
|
|
block_t blkaddr);
|
|
void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino);
|
|
#define inc_compr_inode_stat(inode) \
|
|
do { \
|
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
|
|
sbi->compr_new_inode++; \
|
|
} while (0)
|
|
#define add_compr_block_stat(inode, blocks) \
|
|
do { \
|
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
|
|
int diff = F2FS_I(inode)->i_cluster_size - blocks; \
|
|
sbi->compr_written_block += blocks; \
|
|
sbi->compr_saved_block += diff; \
|
|
} while (0)
|
|
#else
|
|
static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
|
|
static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
|
|
{
|
|
if (!f2fs_compressed_file(inode))
|
|
return true;
|
|
/* not support compression */
|
|
return false;
|
|
}
|
|
static inline struct page *f2fs_compress_control_page(struct page *page)
|
|
{
|
|
WARN_ON_ONCE(1);
|
|
return ERR_PTR(-EINVAL);
|
|
}
|
|
static inline int f2fs_init_compress_mempool(void) { return 0; }
|
|
static inline void f2fs_destroy_compress_mempool(void) { }
|
|
static inline void f2fs_decompress_cluster(struct decompress_io_ctx *dic) { }
|
|
static inline void f2fs_end_read_compressed_page(struct page *page,
|
|
bool failed, block_t blkaddr)
|
|
{
|
|
WARN_ON_ONCE(1);
|
|
}
|
|
static inline void f2fs_put_page_dic(struct page *page)
|
|
{
|
|
WARN_ON_ONCE(1);
|
|
}
|
|
static inline unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn) { return 0; }
|
|
static inline bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) { return false; }
|
|
static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
|
|
static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
|
|
static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
|
|
static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
|
|
static inline int __init f2fs_init_compress_cache(void) { return 0; }
|
|
static inline void f2fs_destroy_compress_cache(void) { }
|
|
static inline void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi,
|
|
block_t blkaddr) { }
|
|
static inline void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
|
|
struct page *page, nid_t ino, block_t blkaddr) { }
|
|
static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
|
|
struct page *page, block_t blkaddr) { return false; }
|
|
static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
|
|
nid_t ino) { }
|
|
#define inc_compr_inode_stat(inode) do { } while (0)
|
|
static inline void f2fs_update_extent_tree_range_compressed(struct inode *inode,
|
|
pgoff_t fofs, block_t blkaddr, unsigned int llen,
|
|
unsigned int c_len) { }
|
|
#endif
|
|
|
|
static inline void set_compress_context(struct inode *inode)
|
|
{
|
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
|
|
|
|
F2FS_I(inode)->i_compress_algorithm =
|
|
F2FS_OPTION(sbi).compress_algorithm;
|
|
F2FS_I(inode)->i_log_cluster_size =
|
|
F2FS_OPTION(sbi).compress_log_size;
|
|
F2FS_I(inode)->i_compress_flag =
|
|
F2FS_OPTION(sbi).compress_chksum ?
|
|
1 << COMPRESS_CHKSUM : 0;
|
|
F2FS_I(inode)->i_cluster_size =
|
|
1 << F2FS_I(inode)->i_log_cluster_size;
|
|
if ((F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 ||
|
|
F2FS_I(inode)->i_compress_algorithm == COMPRESS_ZSTD) &&
|
|
F2FS_OPTION(sbi).compress_level)
|
|
F2FS_I(inode)->i_compress_flag |=
|
|
F2FS_OPTION(sbi).compress_level <<
|
|
COMPRESS_LEVEL_OFFSET;
|
|
F2FS_I(inode)->i_flags |= F2FS_COMPR_FL;
|
|
set_inode_flag(inode, FI_COMPRESSED_FILE);
|
|
stat_inc_compr_inode(inode);
|
|
inc_compr_inode_stat(inode);
|
|
f2fs_mark_inode_dirty_sync(inode, true);
|
|
}
|
|
|
|
static inline bool f2fs_disable_compressed_file(struct inode *inode)
|
|
{
|
|
struct f2fs_inode_info *fi = F2FS_I(inode);
|
|
|
|
if (!f2fs_compressed_file(inode))
|
|
return true;
|
|
if (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode))
|
|
return false;
|
|
|
|
fi->i_flags &= ~F2FS_COMPR_FL;
|
|
stat_dec_compr_inode(inode);
|
|
clear_inode_flag(inode, FI_COMPRESSED_FILE);
|
|
f2fs_mark_inode_dirty_sync(inode, true);
|
|
return true;
|
|
}
|
|
|
|
#define F2FS_FEATURE_FUNCS(name, flagname) \
|
|
static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
|
|
{ \
|
|
return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
|
|
}
|
|
|
|
F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
|
|
F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
|
|
F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
|
|
F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
|
|
F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
|
|
F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
|
|
F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
|
|
F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
|
|
F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
|
|
F2FS_FEATURE_FUNCS(verity, VERITY);
|
|
F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
|
|
F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
|
|
F2FS_FEATURE_FUNCS(compression, COMPRESSION);
|
|
F2FS_FEATURE_FUNCS(readonly, RO);
|
|
|
|
static inline bool f2fs_may_extent_tree(struct inode *inode)
|
|
{
|
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
|
|
|
|
if (!test_opt(sbi, EXTENT_CACHE) ||
|
|
is_inode_flag_set(inode, FI_NO_EXTENT) ||
|
|
(is_inode_flag_set(inode, FI_COMPRESSED_FILE) &&
|
|
!f2fs_sb_has_readonly(sbi)))
|
|
return false;
|
|
|
|
/*
|
|
* for recovered files during mount do not create extents
|
|
* if shrinker is not registered.
|
|
*/
|
|
if (list_empty(&sbi->s_list))
|
|
return false;
|
|
|
|
return S_ISREG(inode->i_mode);
|
|
}
|
|
|
|
#ifdef CONFIG_BLK_DEV_ZONED
|
|
static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
|
|
block_t blkaddr)
|
|
{
|
|
unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
|
|
|
|
return test_bit(zno, FDEV(devi).blkz_seq);
|
|
}
|
|
#endif
|
|
|
|
static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
|
|
{
|
|
return f2fs_sb_has_blkzoned(sbi);
|
|
}
|
|
|
|
static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
|
|
{
|
|
return blk_queue_discard(bdev_get_queue(bdev)) ||
|
|
bdev_is_zoned(bdev);
|
|
}
|
|
|
|
static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
|
|
{
|
|
int i;
|
|
|
|
if (!f2fs_is_multi_device(sbi))
|
|
return f2fs_bdev_support_discard(sbi->sb->s_bdev);
|
|
|
|
for (i = 0; i < sbi->s_ndevs; i++)
|
|
if (f2fs_bdev_support_discard(FDEV(i).bdev))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
|
|
{
|
|
return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
|
|
f2fs_hw_should_discard(sbi);
|
|
}
|
|
|
|
static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
|
|
{
|
|
int i;
|
|
|
|
if (!f2fs_is_multi_device(sbi))
|
|
return bdev_read_only(sbi->sb->s_bdev);
|
|
|
|
for (i = 0; i < sbi->s_ndevs; i++)
|
|
if (bdev_read_only(FDEV(i).bdev))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi)
|
|
{
|
|
return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS;
|
|
}
|
|
|
|
static inline bool f2fs_may_compress(struct inode *inode)
|
|
{
|
|
if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) ||
|
|
f2fs_is_atomic_file(inode) ||
|
|
f2fs_is_volatile_file(inode))
|
|
return false;
|
|
return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
|
|
}
|
|
|
|
static inline void f2fs_i_compr_blocks_update(struct inode *inode,
|
|
u64 blocks, bool add)
|
|
{
|
|
int diff = F2FS_I(inode)->i_cluster_size - blocks;
|
|
struct f2fs_inode_info *fi = F2FS_I(inode);
|
|
|
|
/* don't update i_compr_blocks if saved blocks were released */
|
|
if (!add && !atomic_read(&fi->i_compr_blocks))
|
|
return;
|
|
|
|
if (add) {
|
|
atomic_add(diff, &fi->i_compr_blocks);
|
|
stat_add_compr_blocks(inode, diff);
|
|
} else {
|
|
atomic_sub(diff, &fi->i_compr_blocks);
|
|
stat_sub_compr_blocks(inode, diff);
|
|
}
|
|
f2fs_mark_inode_dirty_sync(inode, true);
|
|
}
|
|
|
|
static inline int block_unaligned_IO(struct inode *inode,
|
|
struct kiocb *iocb, struct iov_iter *iter)
|
|
{
|
|
unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
|
|
unsigned int blocksize_mask = (1 << i_blkbits) - 1;
|
|
loff_t offset = iocb->ki_pos;
|
|
unsigned long align = offset | iov_iter_alignment(iter);
|
|
|
|
return align & blocksize_mask;
|
|
}
|
|
|
|
static inline bool f2fs_allow_multi_device_dio(struct f2fs_sb_info *sbi,
|
|
int flag)
|
|
{
|
|
if (!f2fs_is_multi_device(sbi))
|
|
return false;
|
|
if (flag != F2FS_GET_BLOCK_DIO)
|
|
return false;
|
|
return sbi->aligned_blksize;
|
|
}
|
|
|
|
static inline bool f2fs_force_buffered_io(struct inode *inode,
|
|
struct kiocb *iocb, struct iov_iter *iter)
|
|
{
|
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
|
|
int rw = iov_iter_rw(iter);
|
|
|
|
if (f2fs_post_read_required(inode))
|
|
return true;
|
|
|
|
/* disallow direct IO if any of devices has unaligned blksize */
|
|
if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize)
|
|
return true;
|
|
/*
|
|
* for blkzoned device, fallback direct IO to buffered IO, so
|
|
* all IOs can be serialized by log-structured write.
|
|
*/
|
|
if (f2fs_sb_has_blkzoned(sbi))
|
|
return true;
|
|
if (f2fs_lfs_mode(sbi) && (rw == WRITE)) {
|
|
if (block_unaligned_IO(inode, iocb, iter))
|
|
return true;
|
|
if (F2FS_IO_ALIGNED(sbi))
|
|
return true;
|
|
}
|
|
if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx)
|
|
{
|
|
return fsverity_active(inode) &&
|
|
idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
|
|
}
|
|
|
|
#ifdef CONFIG_F2FS_FAULT_INJECTION
|
|
extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
|
|
unsigned int type);
|
|
#else
|
|
#define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
|
|
#endif
|
|
|
|
static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
|
|
{
|
|
#ifdef CONFIG_QUOTA
|
|
if (f2fs_sb_has_quota_ino(sbi))
|
|
return true;
|
|
if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
|
|
F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
|
|
F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
|
|
return true;
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
static inline bool f2fs_block_unit_discard(struct f2fs_sb_info *sbi)
|
|
{
|
|
return F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK;
|
|
}
|
|
|
|
#define EFSBADCRC EBADMSG /* Bad CRC detected */
|
|
#define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
|
|
|
|
#endif /* _LINUX_F2FS_H */
|