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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 ...
1257 lines
36 KiB
C
1257 lines
36 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* f2fs sysfs interface
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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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* Copyright (c) 2017 Chao Yu <chao@kernel.org>
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*/
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#include <linux/compiler.h>
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#include <linux/proc_fs.h>
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#include <linux/f2fs_fs.h>
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#include <linux/seq_file.h>
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#include <linux/unicode.h>
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#include <linux/ioprio.h>
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#include <linux/sysfs.h>
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#include "f2fs.h"
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#include "segment.h"
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#include "gc.h"
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#include "iostat.h"
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#include <trace/events/f2fs.h>
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static struct proc_dir_entry *f2fs_proc_root;
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/* Sysfs support for f2fs */
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enum {
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GC_THREAD, /* struct f2fs_gc_thread */
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SM_INFO, /* struct f2fs_sm_info */
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DCC_INFO, /* struct discard_cmd_control */
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NM_INFO, /* struct f2fs_nm_info */
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F2FS_SBI, /* struct f2fs_sb_info */
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#ifdef CONFIG_F2FS_STAT_FS
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STAT_INFO, /* struct f2fs_stat_info */
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#endif
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#ifdef CONFIG_F2FS_FAULT_INJECTION
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FAULT_INFO_RATE, /* struct f2fs_fault_info */
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FAULT_INFO_TYPE, /* struct f2fs_fault_info */
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#endif
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RESERVED_BLOCKS, /* struct f2fs_sb_info */
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CPRC_INFO, /* struct ckpt_req_control */
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ATGC_INFO, /* struct atgc_management */
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};
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struct f2fs_attr {
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struct attribute attr;
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ssize_t (*show)(struct f2fs_attr *, struct f2fs_sb_info *, char *);
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ssize_t (*store)(struct f2fs_attr *, struct f2fs_sb_info *,
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const char *, size_t);
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int struct_type;
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int offset;
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int id;
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};
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static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf);
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static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type)
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{
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if (struct_type == GC_THREAD)
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return (unsigned char *)sbi->gc_thread;
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else if (struct_type == SM_INFO)
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return (unsigned char *)SM_I(sbi);
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else if (struct_type == DCC_INFO)
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return (unsigned char *)SM_I(sbi)->dcc_info;
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else if (struct_type == NM_INFO)
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return (unsigned char *)NM_I(sbi);
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else if (struct_type == F2FS_SBI || struct_type == RESERVED_BLOCKS)
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return (unsigned char *)sbi;
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#ifdef CONFIG_F2FS_FAULT_INJECTION
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else if (struct_type == FAULT_INFO_RATE ||
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struct_type == FAULT_INFO_TYPE)
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return (unsigned char *)&F2FS_OPTION(sbi).fault_info;
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#endif
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#ifdef CONFIG_F2FS_STAT_FS
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else if (struct_type == STAT_INFO)
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return (unsigned char *)F2FS_STAT(sbi);
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#endif
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else if (struct_type == CPRC_INFO)
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return (unsigned char *)&sbi->cprc_info;
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else if (struct_type == ATGC_INFO)
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return (unsigned char *)&sbi->am;
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return NULL;
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}
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static ssize_t dirty_segments_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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return sprintf(buf, "%llu\n",
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(unsigned long long)(dirty_segments(sbi)));
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}
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static ssize_t free_segments_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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return sprintf(buf, "%llu\n",
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(unsigned long long)(free_segments(sbi)));
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}
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static ssize_t ovp_segments_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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return sprintf(buf, "%llu\n",
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(unsigned long long)(overprovision_segments(sbi)));
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}
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static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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return sprintf(buf, "%llu\n",
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(unsigned long long)(sbi->kbytes_written +
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((f2fs_get_sectors_written(sbi) -
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sbi->sectors_written_start) >> 1)));
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}
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static ssize_t sb_status_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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return sprintf(buf, "%lx\n", sbi->s_flag);
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}
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static ssize_t pending_discard_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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if (!SM_I(sbi)->dcc_info)
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return -EINVAL;
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return sprintf(buf, "%llu\n", (unsigned long long)atomic_read(
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&SM_I(sbi)->dcc_info->discard_cmd_cnt));
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}
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static ssize_t features_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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int len = 0;
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if (f2fs_sb_has_encrypt(sbi))
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len += scnprintf(buf, PAGE_SIZE - len, "%s",
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"encryption");
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if (f2fs_sb_has_blkzoned(sbi))
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
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len ? ", " : "", "blkzoned");
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if (f2fs_sb_has_extra_attr(sbi))
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
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len ? ", " : "", "extra_attr");
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if (f2fs_sb_has_project_quota(sbi))
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
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len ? ", " : "", "projquota");
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if (f2fs_sb_has_inode_chksum(sbi))
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
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len ? ", " : "", "inode_checksum");
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if (f2fs_sb_has_flexible_inline_xattr(sbi))
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
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len ? ", " : "", "flexible_inline_xattr");
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if (f2fs_sb_has_quota_ino(sbi))
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
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len ? ", " : "", "quota_ino");
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if (f2fs_sb_has_inode_crtime(sbi))
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
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len ? ", " : "", "inode_crtime");
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if (f2fs_sb_has_lost_found(sbi))
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
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len ? ", " : "", "lost_found");
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if (f2fs_sb_has_verity(sbi))
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
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len ? ", " : "", "verity");
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if (f2fs_sb_has_sb_chksum(sbi))
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
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len ? ", " : "", "sb_checksum");
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if (f2fs_sb_has_casefold(sbi))
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
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len ? ", " : "", "casefold");
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if (f2fs_sb_has_readonly(sbi))
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
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len ? ", " : "", "readonly");
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if (f2fs_sb_has_compression(sbi))
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
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len ? ", " : "", "compression");
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
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len ? ", " : "", "pin_file");
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len += scnprintf(buf + len, PAGE_SIZE - len, "\n");
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return len;
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}
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static ssize_t current_reserved_blocks_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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return sprintf(buf, "%u\n", sbi->current_reserved_blocks);
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}
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static ssize_t unusable_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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block_t unusable;
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if (test_opt(sbi, DISABLE_CHECKPOINT))
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unusable = sbi->unusable_block_count;
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else
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unusable = f2fs_get_unusable_blocks(sbi);
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return sprintf(buf, "%llu\n", (unsigned long long)unusable);
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}
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static ssize_t encoding_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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#ifdef CONFIG_UNICODE
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struct super_block *sb = sbi->sb;
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if (f2fs_sb_has_casefold(sbi))
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return sysfs_emit(buf, "UTF-8 (%d.%d.%d)\n",
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(sb->s_encoding->version >> 16) & 0xff,
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(sb->s_encoding->version >> 8) & 0xff,
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sb->s_encoding->version & 0xff);
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#endif
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return sprintf(buf, "(none)");
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}
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static ssize_t mounted_time_sec_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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return sprintf(buf, "%llu", SIT_I(sbi)->mounted_time);
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}
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#ifdef CONFIG_F2FS_STAT_FS
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static ssize_t moved_blocks_foreground_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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struct f2fs_stat_info *si = F2FS_STAT(sbi);
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return sprintf(buf, "%llu\n",
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(unsigned long long)(si->tot_blks -
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(si->bg_data_blks + si->bg_node_blks)));
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}
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static ssize_t moved_blocks_background_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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struct f2fs_stat_info *si = F2FS_STAT(sbi);
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return sprintf(buf, "%llu\n",
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(unsigned long long)(si->bg_data_blks + si->bg_node_blks));
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}
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static ssize_t avg_vblocks_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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struct f2fs_stat_info *si = F2FS_STAT(sbi);
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si->dirty_count = dirty_segments(sbi);
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f2fs_update_sit_info(sbi);
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return sprintf(buf, "%llu\n", (unsigned long long)(si->avg_vblocks));
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}
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#endif
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static ssize_t main_blkaddr_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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return sysfs_emit(buf, "%llu\n",
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(unsigned long long)MAIN_BLKADDR(sbi));
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}
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static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi, char *buf)
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{
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unsigned char *ptr = NULL;
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unsigned int *ui;
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ptr = __struct_ptr(sbi, a->struct_type);
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if (!ptr)
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return -EINVAL;
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if (!strcmp(a->attr.name, "extension_list")) {
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__u8 (*extlist)[F2FS_EXTENSION_LEN] =
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sbi->raw_super->extension_list;
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int cold_count = le32_to_cpu(sbi->raw_super->extension_count);
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int hot_count = sbi->raw_super->hot_ext_count;
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int len = 0, i;
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len += scnprintf(buf + len, PAGE_SIZE - len,
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"cold file extension:\n");
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for (i = 0; i < cold_count; i++)
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s\n",
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extlist[i]);
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len += scnprintf(buf + len, PAGE_SIZE - len,
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"hot file extension:\n");
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for (i = cold_count; i < cold_count + hot_count; i++)
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s\n",
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extlist[i]);
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return len;
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}
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if (!strcmp(a->attr.name, "ckpt_thread_ioprio")) {
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struct ckpt_req_control *cprc = &sbi->cprc_info;
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int len = 0;
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int class = IOPRIO_PRIO_CLASS(cprc->ckpt_thread_ioprio);
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int data = IOPRIO_PRIO_DATA(cprc->ckpt_thread_ioprio);
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if (class == IOPRIO_CLASS_RT)
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len += scnprintf(buf + len, PAGE_SIZE - len, "rt,");
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else if (class == IOPRIO_CLASS_BE)
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len += scnprintf(buf + len, PAGE_SIZE - len, "be,");
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else
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return -EINVAL;
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len += scnprintf(buf + len, PAGE_SIZE - len, "%d\n", data);
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return len;
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}
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#ifdef CONFIG_F2FS_FS_COMPRESSION
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if (!strcmp(a->attr.name, "compr_written_block"))
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return sysfs_emit(buf, "%llu\n", sbi->compr_written_block);
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if (!strcmp(a->attr.name, "compr_saved_block"))
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return sysfs_emit(buf, "%llu\n", sbi->compr_saved_block);
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if (!strcmp(a->attr.name, "compr_new_inode"))
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return sysfs_emit(buf, "%u\n", sbi->compr_new_inode);
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#endif
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if (!strcmp(a->attr.name, "gc_segment_mode"))
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return sysfs_emit(buf, "%u\n", sbi->gc_segment_mode);
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if (!strcmp(a->attr.name, "gc_reclaimed_segments")) {
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return sysfs_emit(buf, "%u\n",
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sbi->gc_reclaimed_segs[sbi->gc_segment_mode]);
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}
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ui = (unsigned int *)(ptr + a->offset);
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return sprintf(buf, "%u\n", *ui);
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}
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static ssize_t __sbi_store(struct f2fs_attr *a,
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struct f2fs_sb_info *sbi,
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const char *buf, size_t count)
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{
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unsigned char *ptr;
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unsigned long t;
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unsigned int *ui;
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ssize_t ret;
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ptr = __struct_ptr(sbi, a->struct_type);
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if (!ptr)
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return -EINVAL;
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if (!strcmp(a->attr.name, "extension_list")) {
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const char *name = strim((char *)buf);
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bool set = true, hot;
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if (!strncmp(name, "[h]", 3))
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hot = true;
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else if (!strncmp(name, "[c]", 3))
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hot = false;
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else
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return -EINVAL;
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name += 3;
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if (*name == '!') {
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name++;
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set = false;
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}
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if (!strlen(name) || strlen(name) >= F2FS_EXTENSION_LEN)
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return -EINVAL;
|
|
|
|
down_write(&sbi->sb_lock);
|
|
|
|
ret = f2fs_update_extension_list(sbi, name, hot, set);
|
|
if (ret)
|
|
goto out;
|
|
|
|
ret = f2fs_commit_super(sbi, false);
|
|
if (ret)
|
|
f2fs_update_extension_list(sbi, name, hot, !set);
|
|
out:
|
|
up_write(&sbi->sb_lock);
|
|
return ret ? ret : count;
|
|
}
|
|
|
|
if (!strcmp(a->attr.name, "ckpt_thread_ioprio")) {
|
|
const char *name = strim((char *)buf);
|
|
struct ckpt_req_control *cprc = &sbi->cprc_info;
|
|
int class;
|
|
long data;
|
|
int ret;
|
|
|
|
if (!strncmp(name, "rt,", 3))
|
|
class = IOPRIO_CLASS_RT;
|
|
else if (!strncmp(name, "be,", 3))
|
|
class = IOPRIO_CLASS_BE;
|
|
else
|
|
return -EINVAL;
|
|
|
|
name += 3;
|
|
ret = kstrtol(name, 10, &data);
|
|
if (ret)
|
|
return ret;
|
|
if (data >= IOPRIO_NR_LEVELS || data < 0)
|
|
return -EINVAL;
|
|
|
|
cprc->ckpt_thread_ioprio = IOPRIO_PRIO_VALUE(class, data);
|
|
if (test_opt(sbi, MERGE_CHECKPOINT)) {
|
|
ret = set_task_ioprio(cprc->f2fs_issue_ckpt,
|
|
cprc->ckpt_thread_ioprio);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
ui = (unsigned int *)(ptr + a->offset);
|
|
|
|
ret = kstrtoul(skip_spaces(buf), 0, &t);
|
|
if (ret < 0)
|
|
return ret;
|
|
#ifdef CONFIG_F2FS_FAULT_INJECTION
|
|
if (a->struct_type == FAULT_INFO_TYPE && t >= (1 << FAULT_MAX))
|
|
return -EINVAL;
|
|
if (a->struct_type == FAULT_INFO_RATE && t >= UINT_MAX)
|
|
return -EINVAL;
|
|
#endif
|
|
if (a->struct_type == RESERVED_BLOCKS) {
|
|
spin_lock(&sbi->stat_lock);
|
|
if (t > (unsigned long)(sbi->user_block_count -
|
|
F2FS_OPTION(sbi).root_reserved_blocks -
|
|
sbi->blocks_per_seg *
|
|
SM_I(sbi)->additional_reserved_segments)) {
|
|
spin_unlock(&sbi->stat_lock);
|
|
return -EINVAL;
|
|
}
|
|
*ui = t;
|
|
sbi->current_reserved_blocks = min(sbi->reserved_blocks,
|
|
sbi->user_block_count - valid_user_blocks(sbi));
|
|
spin_unlock(&sbi->stat_lock);
|
|
return count;
|
|
}
|
|
|
|
if (!strcmp(a->attr.name, "discard_granularity")) {
|
|
if (t == 0 || t > MAX_PLIST_NUM)
|
|
return -EINVAL;
|
|
if (!f2fs_block_unit_discard(sbi))
|
|
return -EINVAL;
|
|
if (t == *ui)
|
|
return count;
|
|
*ui = t;
|
|
return count;
|
|
}
|
|
|
|
if (!strcmp(a->attr.name, "migration_granularity")) {
|
|
if (t == 0 || t > sbi->segs_per_sec)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!strcmp(a->attr.name, "trim_sections"))
|
|
return -EINVAL;
|
|
|
|
if (!strcmp(a->attr.name, "gc_urgent")) {
|
|
if (t == 0) {
|
|
sbi->gc_mode = GC_NORMAL;
|
|
} else if (t == 1) {
|
|
sbi->gc_mode = GC_URGENT_HIGH;
|
|
if (sbi->gc_thread) {
|
|
sbi->gc_thread->gc_wake = 1;
|
|
wake_up_interruptible_all(
|
|
&sbi->gc_thread->gc_wait_queue_head);
|
|
wake_up_discard_thread(sbi, true);
|
|
}
|
|
} else if (t == 2) {
|
|
sbi->gc_mode = GC_URGENT_LOW;
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
return count;
|
|
}
|
|
if (!strcmp(a->attr.name, "gc_idle")) {
|
|
if (t == GC_IDLE_CB) {
|
|
sbi->gc_mode = GC_IDLE_CB;
|
|
} else if (t == GC_IDLE_GREEDY) {
|
|
sbi->gc_mode = GC_IDLE_GREEDY;
|
|
} else if (t == GC_IDLE_AT) {
|
|
if (!sbi->am.atgc_enabled)
|
|
return -EINVAL;
|
|
sbi->gc_mode = GC_AT;
|
|
} else {
|
|
sbi->gc_mode = GC_NORMAL;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
if (!strcmp(a->attr.name, "gc_urgent_high_remaining")) {
|
|
spin_lock(&sbi->gc_urgent_high_lock);
|
|
sbi->gc_urgent_high_limited = t != 0;
|
|
sbi->gc_urgent_high_remaining = t;
|
|
spin_unlock(&sbi->gc_urgent_high_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
#ifdef CONFIG_F2FS_IOSTAT
|
|
if (!strcmp(a->attr.name, "iostat_enable")) {
|
|
sbi->iostat_enable = !!t;
|
|
if (!sbi->iostat_enable)
|
|
f2fs_reset_iostat(sbi);
|
|
return count;
|
|
}
|
|
|
|
if (!strcmp(a->attr.name, "iostat_period_ms")) {
|
|
if (t < MIN_IOSTAT_PERIOD_MS || t > MAX_IOSTAT_PERIOD_MS)
|
|
return -EINVAL;
|
|
spin_lock(&sbi->iostat_lock);
|
|
sbi->iostat_period_ms = (unsigned int)t;
|
|
spin_unlock(&sbi->iostat_lock);
|
|
return count;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION
|
|
if (!strcmp(a->attr.name, "compr_written_block") ||
|
|
!strcmp(a->attr.name, "compr_saved_block")) {
|
|
if (t != 0)
|
|
return -EINVAL;
|
|
sbi->compr_written_block = 0;
|
|
sbi->compr_saved_block = 0;
|
|
return count;
|
|
}
|
|
|
|
if (!strcmp(a->attr.name, "compr_new_inode")) {
|
|
if (t != 0)
|
|
return -EINVAL;
|
|
sbi->compr_new_inode = 0;
|
|
return count;
|
|
}
|
|
#endif
|
|
|
|
if (!strcmp(a->attr.name, "atgc_candidate_ratio")) {
|
|
if (t > 100)
|
|
return -EINVAL;
|
|
sbi->am.candidate_ratio = t;
|
|
return count;
|
|
}
|
|
|
|
if (!strcmp(a->attr.name, "atgc_age_weight")) {
|
|
if (t > 100)
|
|
return -EINVAL;
|
|
sbi->am.age_weight = t;
|
|
return count;
|
|
}
|
|
|
|
if (!strcmp(a->attr.name, "gc_segment_mode")) {
|
|
if (t < MAX_GC_MODE)
|
|
sbi->gc_segment_mode = t;
|
|
else
|
|
return -EINVAL;
|
|
return count;
|
|
}
|
|
|
|
if (!strcmp(a->attr.name, "gc_reclaimed_segments")) {
|
|
if (t != 0)
|
|
return -EINVAL;
|
|
sbi->gc_reclaimed_segs[sbi->gc_segment_mode] = 0;
|
|
return count;
|
|
}
|
|
|
|
if (!strcmp(a->attr.name, "seq_file_ra_mul")) {
|
|
if (t >= MIN_RA_MUL && t <= MAX_RA_MUL)
|
|
sbi->seq_file_ra_mul = t;
|
|
else
|
|
return -EINVAL;
|
|
return count;
|
|
}
|
|
|
|
if (!strcmp(a->attr.name, "max_fragment_chunk")) {
|
|
if (t >= MIN_FRAGMENT_SIZE && t <= MAX_FRAGMENT_SIZE)
|
|
sbi->max_fragment_chunk = t;
|
|
else
|
|
return -EINVAL;
|
|
return count;
|
|
}
|
|
|
|
if (!strcmp(a->attr.name, "max_fragment_hole")) {
|
|
if (t >= MIN_FRAGMENT_SIZE && t <= MAX_FRAGMENT_SIZE)
|
|
sbi->max_fragment_hole = t;
|
|
else
|
|
return -EINVAL;
|
|
return count;
|
|
}
|
|
|
|
*ui = (unsigned int)t;
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t f2fs_sbi_store(struct f2fs_attr *a,
|
|
struct f2fs_sb_info *sbi,
|
|
const char *buf, size_t count)
|
|
{
|
|
ssize_t ret;
|
|
bool gc_entry = (!strcmp(a->attr.name, "gc_urgent") ||
|
|
a->struct_type == GC_THREAD);
|
|
|
|
if (gc_entry) {
|
|
if (!down_read_trylock(&sbi->sb->s_umount))
|
|
return -EAGAIN;
|
|
}
|
|
ret = __sbi_store(a, sbi, buf, count);
|
|
if (gc_entry)
|
|
up_read(&sbi->sb->s_umount);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static ssize_t f2fs_attr_show(struct kobject *kobj,
|
|
struct attribute *attr, char *buf)
|
|
{
|
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
|
|
s_kobj);
|
|
struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
|
|
|
|
return a->show ? a->show(a, sbi, buf) : 0;
|
|
}
|
|
|
|
static ssize_t f2fs_attr_store(struct kobject *kobj, struct attribute *attr,
|
|
const char *buf, size_t len)
|
|
{
|
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
|
|
s_kobj);
|
|
struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
|
|
|
|
return a->store ? a->store(a, sbi, buf, len) : 0;
|
|
}
|
|
|
|
static void f2fs_sb_release(struct kobject *kobj)
|
|
{
|
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
|
|
s_kobj);
|
|
complete(&sbi->s_kobj_unregister);
|
|
}
|
|
|
|
/*
|
|
* Note that there are three feature list entries:
|
|
* 1) /sys/fs/f2fs/features
|
|
* : shows runtime features supported by in-kernel f2fs along with Kconfig.
|
|
* - ref. F2FS_FEATURE_RO_ATTR()
|
|
*
|
|
* 2) /sys/fs/f2fs/$s_id/features <deprecated>
|
|
* : shows on-disk features enabled by mkfs.f2fs, used for old kernels. This
|
|
* won't add new feature anymore, and thus, users should check entries in 3)
|
|
* instead of this 2).
|
|
*
|
|
* 3) /sys/fs/f2fs/$s_id/feature_list
|
|
* : shows on-disk features enabled by mkfs.f2fs per instance, which follows
|
|
* sysfs entry rule where each entry should expose single value.
|
|
* This list covers old feature list provided by 2) and beyond. Therefore,
|
|
* please add new on-disk feature in this list only.
|
|
* - ref. F2FS_SB_FEATURE_RO_ATTR()
|
|
*/
|
|
static ssize_t f2fs_feature_show(struct f2fs_attr *a,
|
|
struct f2fs_sb_info *sbi, char *buf)
|
|
{
|
|
return sprintf(buf, "supported\n");
|
|
}
|
|
|
|
#define F2FS_FEATURE_RO_ATTR(_name) \
|
|
static struct f2fs_attr f2fs_attr_##_name = { \
|
|
.attr = {.name = __stringify(_name), .mode = 0444 }, \
|
|
.show = f2fs_feature_show, \
|
|
}
|
|
|
|
static ssize_t f2fs_sb_feature_show(struct f2fs_attr *a,
|
|
struct f2fs_sb_info *sbi, char *buf)
|
|
{
|
|
if (F2FS_HAS_FEATURE(sbi, a->id))
|
|
return sprintf(buf, "supported\n");
|
|
return sprintf(buf, "unsupported\n");
|
|
}
|
|
|
|
#define F2FS_SB_FEATURE_RO_ATTR(_name, _feat) \
|
|
static struct f2fs_attr f2fs_attr_sb_##_name = { \
|
|
.attr = {.name = __stringify(_name), .mode = 0444 }, \
|
|
.show = f2fs_sb_feature_show, \
|
|
.id = F2FS_FEATURE_##_feat, \
|
|
}
|
|
|
|
#define F2FS_ATTR_OFFSET(_struct_type, _name, _mode, _show, _store, _offset) \
|
|
static struct f2fs_attr f2fs_attr_##_name = { \
|
|
.attr = {.name = __stringify(_name), .mode = _mode }, \
|
|
.show = _show, \
|
|
.store = _store, \
|
|
.struct_type = _struct_type, \
|
|
.offset = _offset \
|
|
}
|
|
|
|
#define F2FS_RW_ATTR(struct_type, struct_name, name, elname) \
|
|
F2FS_ATTR_OFFSET(struct_type, name, 0644, \
|
|
f2fs_sbi_show, f2fs_sbi_store, \
|
|
offsetof(struct struct_name, elname))
|
|
|
|
#define F2FS_GENERAL_RO_ATTR(name) \
|
|
static struct f2fs_attr f2fs_attr_##name = __ATTR(name, 0444, name##_show, NULL)
|
|
|
|
#define F2FS_STAT_ATTR(_struct_type, _struct_name, _name, _elname) \
|
|
static struct f2fs_attr f2fs_attr_##_name = { \
|
|
.attr = {.name = __stringify(_name), .mode = 0444 }, \
|
|
.show = f2fs_sbi_show, \
|
|
.struct_type = _struct_type, \
|
|
.offset = offsetof(struct _struct_name, _elname), \
|
|
}
|
|
|
|
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_urgent_sleep_time,
|
|
urgent_sleep_time);
|
|
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time);
|
|
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_max_sleep_time, max_sleep_time);
|
|
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle, gc_mode);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_urgent, gc_mode);
|
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments);
|
|
F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, max_small_discards, max_discards);
|
|
F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, discard_granularity, discard_granularity);
|
|
F2FS_RW_ATTR(RESERVED_BLOCKS, f2fs_sb_info, reserved_blocks, reserved_blocks);
|
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, batched_trim_sections, trim_sections);
|
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, ipu_policy, ipu_policy);
|
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ipu_util, min_ipu_util);
|
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_fsync_blocks, min_fsync_blocks);
|
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_seq_blocks, min_seq_blocks);
|
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_hot_blocks, min_hot_blocks);
|
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ssr_sections, min_ssr_sections);
|
|
F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh);
|
|
F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages);
|
|
F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, migration_granularity, migration_granularity);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, cp_interval, interval_time[CP_TIME]);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, idle_interval, interval_time[REQ_TIME]);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, discard_idle_interval,
|
|
interval_time[DISCARD_TIME]);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle_interval, interval_time[GC_TIME]);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info,
|
|
umount_discard_timeout, interval_time[UMOUNT_DISCARD_TIMEOUT]);
|
|
#ifdef CONFIG_F2FS_IOSTAT
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_enable, iostat_enable);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_period_ms, iostat_period_ms);
|
|
#endif
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, readdir_ra, readdir_ra);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_io_bytes, max_io_bytes);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_pin_file_thresh, gc_pin_file_threshold);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_super_block, extension_list, extension_list);
|
|
#ifdef CONFIG_F2FS_FAULT_INJECTION
|
|
F2FS_RW_ATTR(FAULT_INFO_RATE, f2fs_fault_info, inject_rate, inject_rate);
|
|
F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type);
|
|
#endif
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, data_io_flag, data_io_flag);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, node_io_flag, node_io_flag);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_urgent_high_remaining, gc_urgent_high_remaining);
|
|
F2FS_RW_ATTR(CPRC_INFO, ckpt_req_control, ckpt_thread_ioprio, ckpt_thread_ioprio);
|
|
F2FS_GENERAL_RO_ATTR(dirty_segments);
|
|
F2FS_GENERAL_RO_ATTR(free_segments);
|
|
F2FS_GENERAL_RO_ATTR(ovp_segments);
|
|
F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes);
|
|
F2FS_GENERAL_RO_ATTR(features);
|
|
F2FS_GENERAL_RO_ATTR(current_reserved_blocks);
|
|
F2FS_GENERAL_RO_ATTR(unusable);
|
|
F2FS_GENERAL_RO_ATTR(encoding);
|
|
F2FS_GENERAL_RO_ATTR(mounted_time_sec);
|
|
F2FS_GENERAL_RO_ATTR(main_blkaddr);
|
|
F2FS_GENERAL_RO_ATTR(pending_discard);
|
|
#ifdef CONFIG_F2FS_STAT_FS
|
|
F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_foreground_calls, cp_count);
|
|
F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_background_calls, bg_cp_count);
|
|
F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_foreground_calls, call_count);
|
|
F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_background_calls, bg_gc);
|
|
F2FS_GENERAL_RO_ATTR(moved_blocks_background);
|
|
F2FS_GENERAL_RO_ATTR(moved_blocks_foreground);
|
|
F2FS_GENERAL_RO_ATTR(avg_vblocks);
|
|
#endif
|
|
|
|
#ifdef CONFIG_FS_ENCRYPTION
|
|
F2FS_FEATURE_RO_ATTR(encryption);
|
|
F2FS_FEATURE_RO_ATTR(test_dummy_encryption_v2);
|
|
#ifdef CONFIG_UNICODE
|
|
F2FS_FEATURE_RO_ATTR(encrypted_casefold);
|
|
#endif
|
|
#endif /* CONFIG_FS_ENCRYPTION */
|
|
#ifdef CONFIG_BLK_DEV_ZONED
|
|
F2FS_FEATURE_RO_ATTR(block_zoned);
|
|
#endif
|
|
F2FS_FEATURE_RO_ATTR(atomic_write);
|
|
F2FS_FEATURE_RO_ATTR(extra_attr);
|
|
F2FS_FEATURE_RO_ATTR(project_quota);
|
|
F2FS_FEATURE_RO_ATTR(inode_checksum);
|
|
F2FS_FEATURE_RO_ATTR(flexible_inline_xattr);
|
|
F2FS_FEATURE_RO_ATTR(quota_ino);
|
|
F2FS_FEATURE_RO_ATTR(inode_crtime);
|
|
F2FS_FEATURE_RO_ATTR(lost_found);
|
|
#ifdef CONFIG_FS_VERITY
|
|
F2FS_FEATURE_RO_ATTR(verity);
|
|
#endif
|
|
F2FS_FEATURE_RO_ATTR(sb_checksum);
|
|
#ifdef CONFIG_UNICODE
|
|
F2FS_FEATURE_RO_ATTR(casefold);
|
|
#endif
|
|
F2FS_FEATURE_RO_ATTR(readonly);
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION
|
|
F2FS_FEATURE_RO_ATTR(compression);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_written_block, compr_written_block);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_saved_block, compr_saved_block);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_new_inode, compr_new_inode);
|
|
#endif
|
|
F2FS_FEATURE_RO_ATTR(pin_file);
|
|
|
|
/* For ATGC */
|
|
F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_candidate_ratio, candidate_ratio);
|
|
F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_candidate_count, max_candidate_count);
|
|
F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_age_weight, age_weight);
|
|
F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_age_threshold, age_threshold);
|
|
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, seq_file_ra_mul, seq_file_ra_mul);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_segment_mode, gc_segment_mode);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_reclaimed_segments, gc_reclaimed_segs);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_fragment_chunk, max_fragment_chunk);
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_fragment_hole, max_fragment_hole);
|
|
|
|
#define ATTR_LIST(name) (&f2fs_attr_##name.attr)
|
|
static struct attribute *f2fs_attrs[] = {
|
|
ATTR_LIST(gc_urgent_sleep_time),
|
|
ATTR_LIST(gc_min_sleep_time),
|
|
ATTR_LIST(gc_max_sleep_time),
|
|
ATTR_LIST(gc_no_gc_sleep_time),
|
|
ATTR_LIST(gc_idle),
|
|
ATTR_LIST(gc_urgent),
|
|
ATTR_LIST(reclaim_segments),
|
|
ATTR_LIST(main_blkaddr),
|
|
ATTR_LIST(max_small_discards),
|
|
ATTR_LIST(discard_granularity),
|
|
ATTR_LIST(pending_discard),
|
|
ATTR_LIST(batched_trim_sections),
|
|
ATTR_LIST(ipu_policy),
|
|
ATTR_LIST(min_ipu_util),
|
|
ATTR_LIST(min_fsync_blocks),
|
|
ATTR_LIST(min_seq_blocks),
|
|
ATTR_LIST(min_hot_blocks),
|
|
ATTR_LIST(min_ssr_sections),
|
|
ATTR_LIST(max_victim_search),
|
|
ATTR_LIST(migration_granularity),
|
|
ATTR_LIST(dir_level),
|
|
ATTR_LIST(ram_thresh),
|
|
ATTR_LIST(ra_nid_pages),
|
|
ATTR_LIST(dirty_nats_ratio),
|
|
ATTR_LIST(cp_interval),
|
|
ATTR_LIST(idle_interval),
|
|
ATTR_LIST(discard_idle_interval),
|
|
ATTR_LIST(gc_idle_interval),
|
|
ATTR_LIST(umount_discard_timeout),
|
|
#ifdef CONFIG_F2FS_IOSTAT
|
|
ATTR_LIST(iostat_enable),
|
|
ATTR_LIST(iostat_period_ms),
|
|
#endif
|
|
ATTR_LIST(readdir_ra),
|
|
ATTR_LIST(max_io_bytes),
|
|
ATTR_LIST(gc_pin_file_thresh),
|
|
ATTR_LIST(extension_list),
|
|
#ifdef CONFIG_F2FS_FAULT_INJECTION
|
|
ATTR_LIST(inject_rate),
|
|
ATTR_LIST(inject_type),
|
|
#endif
|
|
ATTR_LIST(data_io_flag),
|
|
ATTR_LIST(node_io_flag),
|
|
ATTR_LIST(gc_urgent_high_remaining),
|
|
ATTR_LIST(ckpt_thread_ioprio),
|
|
ATTR_LIST(dirty_segments),
|
|
ATTR_LIST(free_segments),
|
|
ATTR_LIST(ovp_segments),
|
|
ATTR_LIST(unusable),
|
|
ATTR_LIST(lifetime_write_kbytes),
|
|
ATTR_LIST(features),
|
|
ATTR_LIST(reserved_blocks),
|
|
ATTR_LIST(current_reserved_blocks),
|
|
ATTR_LIST(encoding),
|
|
ATTR_LIST(mounted_time_sec),
|
|
#ifdef CONFIG_F2FS_STAT_FS
|
|
ATTR_LIST(cp_foreground_calls),
|
|
ATTR_LIST(cp_background_calls),
|
|
ATTR_LIST(gc_foreground_calls),
|
|
ATTR_LIST(gc_background_calls),
|
|
ATTR_LIST(moved_blocks_foreground),
|
|
ATTR_LIST(moved_blocks_background),
|
|
ATTR_LIST(avg_vblocks),
|
|
#endif
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION
|
|
ATTR_LIST(compr_written_block),
|
|
ATTR_LIST(compr_saved_block),
|
|
ATTR_LIST(compr_new_inode),
|
|
#endif
|
|
/* For ATGC */
|
|
ATTR_LIST(atgc_candidate_ratio),
|
|
ATTR_LIST(atgc_candidate_count),
|
|
ATTR_LIST(atgc_age_weight),
|
|
ATTR_LIST(atgc_age_threshold),
|
|
ATTR_LIST(seq_file_ra_mul),
|
|
ATTR_LIST(gc_segment_mode),
|
|
ATTR_LIST(gc_reclaimed_segments),
|
|
ATTR_LIST(max_fragment_chunk),
|
|
ATTR_LIST(max_fragment_hole),
|
|
NULL,
|
|
};
|
|
ATTRIBUTE_GROUPS(f2fs);
|
|
|
|
static struct attribute *f2fs_feat_attrs[] = {
|
|
#ifdef CONFIG_FS_ENCRYPTION
|
|
ATTR_LIST(encryption),
|
|
ATTR_LIST(test_dummy_encryption_v2),
|
|
#ifdef CONFIG_UNICODE
|
|
ATTR_LIST(encrypted_casefold),
|
|
#endif
|
|
#endif /* CONFIG_FS_ENCRYPTION */
|
|
#ifdef CONFIG_BLK_DEV_ZONED
|
|
ATTR_LIST(block_zoned),
|
|
#endif
|
|
ATTR_LIST(atomic_write),
|
|
ATTR_LIST(extra_attr),
|
|
ATTR_LIST(project_quota),
|
|
ATTR_LIST(inode_checksum),
|
|
ATTR_LIST(flexible_inline_xattr),
|
|
ATTR_LIST(quota_ino),
|
|
ATTR_LIST(inode_crtime),
|
|
ATTR_LIST(lost_found),
|
|
#ifdef CONFIG_FS_VERITY
|
|
ATTR_LIST(verity),
|
|
#endif
|
|
ATTR_LIST(sb_checksum),
|
|
#ifdef CONFIG_UNICODE
|
|
ATTR_LIST(casefold),
|
|
#endif
|
|
ATTR_LIST(readonly),
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION
|
|
ATTR_LIST(compression),
|
|
#endif
|
|
ATTR_LIST(pin_file),
|
|
NULL,
|
|
};
|
|
ATTRIBUTE_GROUPS(f2fs_feat);
|
|
|
|
F2FS_GENERAL_RO_ATTR(sb_status);
|
|
static struct attribute *f2fs_stat_attrs[] = {
|
|
ATTR_LIST(sb_status),
|
|
NULL,
|
|
};
|
|
ATTRIBUTE_GROUPS(f2fs_stat);
|
|
|
|
F2FS_SB_FEATURE_RO_ATTR(encryption, ENCRYPT);
|
|
F2FS_SB_FEATURE_RO_ATTR(block_zoned, BLKZONED);
|
|
F2FS_SB_FEATURE_RO_ATTR(extra_attr, EXTRA_ATTR);
|
|
F2FS_SB_FEATURE_RO_ATTR(project_quota, PRJQUOTA);
|
|
F2FS_SB_FEATURE_RO_ATTR(inode_checksum, INODE_CHKSUM);
|
|
F2FS_SB_FEATURE_RO_ATTR(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
|
|
F2FS_SB_FEATURE_RO_ATTR(quota_ino, QUOTA_INO);
|
|
F2FS_SB_FEATURE_RO_ATTR(inode_crtime, INODE_CRTIME);
|
|
F2FS_SB_FEATURE_RO_ATTR(lost_found, LOST_FOUND);
|
|
F2FS_SB_FEATURE_RO_ATTR(verity, VERITY);
|
|
F2FS_SB_FEATURE_RO_ATTR(sb_checksum, SB_CHKSUM);
|
|
F2FS_SB_FEATURE_RO_ATTR(casefold, CASEFOLD);
|
|
F2FS_SB_FEATURE_RO_ATTR(compression, COMPRESSION);
|
|
F2FS_SB_FEATURE_RO_ATTR(readonly, RO);
|
|
|
|
static struct attribute *f2fs_sb_feat_attrs[] = {
|
|
ATTR_LIST(sb_encryption),
|
|
ATTR_LIST(sb_block_zoned),
|
|
ATTR_LIST(sb_extra_attr),
|
|
ATTR_LIST(sb_project_quota),
|
|
ATTR_LIST(sb_inode_checksum),
|
|
ATTR_LIST(sb_flexible_inline_xattr),
|
|
ATTR_LIST(sb_quota_ino),
|
|
ATTR_LIST(sb_inode_crtime),
|
|
ATTR_LIST(sb_lost_found),
|
|
ATTR_LIST(sb_verity),
|
|
ATTR_LIST(sb_sb_checksum),
|
|
ATTR_LIST(sb_casefold),
|
|
ATTR_LIST(sb_compression),
|
|
ATTR_LIST(sb_readonly),
|
|
NULL,
|
|
};
|
|
ATTRIBUTE_GROUPS(f2fs_sb_feat);
|
|
|
|
static const struct sysfs_ops f2fs_attr_ops = {
|
|
.show = f2fs_attr_show,
|
|
.store = f2fs_attr_store,
|
|
};
|
|
|
|
static struct kobj_type f2fs_sb_ktype = {
|
|
.default_groups = f2fs_groups,
|
|
.sysfs_ops = &f2fs_attr_ops,
|
|
.release = f2fs_sb_release,
|
|
};
|
|
|
|
static struct kobj_type f2fs_ktype = {
|
|
.sysfs_ops = &f2fs_attr_ops,
|
|
};
|
|
|
|
static struct kset f2fs_kset = {
|
|
.kobj = {.ktype = &f2fs_ktype},
|
|
};
|
|
|
|
static struct kobj_type f2fs_feat_ktype = {
|
|
.default_groups = f2fs_feat_groups,
|
|
.sysfs_ops = &f2fs_attr_ops,
|
|
};
|
|
|
|
static struct kobject f2fs_feat = {
|
|
.kset = &f2fs_kset,
|
|
};
|
|
|
|
static ssize_t f2fs_stat_attr_show(struct kobject *kobj,
|
|
struct attribute *attr, char *buf)
|
|
{
|
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
|
|
s_stat_kobj);
|
|
struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
|
|
|
|
return a->show ? a->show(a, sbi, buf) : 0;
|
|
}
|
|
|
|
static ssize_t f2fs_stat_attr_store(struct kobject *kobj, struct attribute *attr,
|
|
const char *buf, size_t len)
|
|
{
|
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
|
|
s_stat_kobj);
|
|
struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
|
|
|
|
return a->store ? a->store(a, sbi, buf, len) : 0;
|
|
}
|
|
|
|
static void f2fs_stat_kobj_release(struct kobject *kobj)
|
|
{
|
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
|
|
s_stat_kobj);
|
|
complete(&sbi->s_stat_kobj_unregister);
|
|
}
|
|
|
|
static const struct sysfs_ops f2fs_stat_attr_ops = {
|
|
.show = f2fs_stat_attr_show,
|
|
.store = f2fs_stat_attr_store,
|
|
};
|
|
|
|
static struct kobj_type f2fs_stat_ktype = {
|
|
.default_groups = f2fs_stat_groups,
|
|
.sysfs_ops = &f2fs_stat_attr_ops,
|
|
.release = f2fs_stat_kobj_release,
|
|
};
|
|
|
|
static ssize_t f2fs_sb_feat_attr_show(struct kobject *kobj,
|
|
struct attribute *attr, char *buf)
|
|
{
|
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
|
|
s_feature_list_kobj);
|
|
struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
|
|
|
|
return a->show ? a->show(a, sbi, buf) : 0;
|
|
}
|
|
|
|
static void f2fs_feature_list_kobj_release(struct kobject *kobj)
|
|
{
|
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
|
|
s_feature_list_kobj);
|
|
complete(&sbi->s_feature_list_kobj_unregister);
|
|
}
|
|
|
|
static const struct sysfs_ops f2fs_feature_list_attr_ops = {
|
|
.show = f2fs_sb_feat_attr_show,
|
|
};
|
|
|
|
static struct kobj_type f2fs_feature_list_ktype = {
|
|
.default_groups = f2fs_sb_feat_groups,
|
|
.sysfs_ops = &f2fs_feature_list_attr_ops,
|
|
.release = f2fs_feature_list_kobj_release,
|
|
};
|
|
|
|
static int __maybe_unused segment_info_seq_show(struct seq_file *seq,
|
|
void *offset)
|
|
{
|
|
struct super_block *sb = seq->private;
|
|
struct f2fs_sb_info *sbi = F2FS_SB(sb);
|
|
unsigned int total_segs =
|
|
le32_to_cpu(sbi->raw_super->segment_count_main);
|
|
int i;
|
|
|
|
seq_puts(seq, "format: segment_type|valid_blocks\n"
|
|
"segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n");
|
|
|
|
for (i = 0; i < total_segs; i++) {
|
|
struct seg_entry *se = get_seg_entry(sbi, i);
|
|
|
|
if ((i % 10) == 0)
|
|
seq_printf(seq, "%-10d", i);
|
|
seq_printf(seq, "%d|%-3u", se->type, se->valid_blocks);
|
|
if ((i % 10) == 9 || i == (total_segs - 1))
|
|
seq_putc(seq, '\n');
|
|
else
|
|
seq_putc(seq, ' ');
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __maybe_unused segment_bits_seq_show(struct seq_file *seq,
|
|
void *offset)
|
|
{
|
|
struct super_block *sb = seq->private;
|
|
struct f2fs_sb_info *sbi = F2FS_SB(sb);
|
|
unsigned int total_segs =
|
|
le32_to_cpu(sbi->raw_super->segment_count_main);
|
|
int i, j;
|
|
|
|
seq_puts(seq, "format: segment_type|valid_blocks|bitmaps\n"
|
|
"segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n");
|
|
|
|
for (i = 0; i < total_segs; i++) {
|
|
struct seg_entry *se = get_seg_entry(sbi, i);
|
|
|
|
seq_printf(seq, "%-10d", i);
|
|
seq_printf(seq, "%d|%-3u|", se->type, se->valid_blocks);
|
|
for (j = 0; j < SIT_VBLOCK_MAP_SIZE; j++)
|
|
seq_printf(seq, " %.2x", se->cur_valid_map[j]);
|
|
seq_putc(seq, '\n');
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int __maybe_unused victim_bits_seq_show(struct seq_file *seq,
|
|
void *offset)
|
|
{
|
|
struct super_block *sb = seq->private;
|
|
struct f2fs_sb_info *sbi = F2FS_SB(sb);
|
|
struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
|
|
int i;
|
|
|
|
seq_puts(seq, "format: victim_secmap bitmaps\n");
|
|
|
|
for (i = 0; i < MAIN_SECS(sbi); i++) {
|
|
if ((i % 10) == 0)
|
|
seq_printf(seq, "%-10d", i);
|
|
seq_printf(seq, "%d", test_bit(i, dirty_i->victim_secmap) ? 1 : 0);
|
|
if ((i % 10) == 9 || i == (MAIN_SECS(sbi) - 1))
|
|
seq_putc(seq, '\n');
|
|
else
|
|
seq_putc(seq, ' ');
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int __init f2fs_init_sysfs(void)
|
|
{
|
|
int ret;
|
|
|
|
kobject_set_name(&f2fs_kset.kobj, "f2fs");
|
|
f2fs_kset.kobj.parent = fs_kobj;
|
|
ret = kset_register(&f2fs_kset);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = kobject_init_and_add(&f2fs_feat, &f2fs_feat_ktype,
|
|
NULL, "features");
|
|
if (ret) {
|
|
kobject_put(&f2fs_feat);
|
|
kset_unregister(&f2fs_kset);
|
|
} else {
|
|
f2fs_proc_root = proc_mkdir("fs/f2fs", NULL);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void f2fs_exit_sysfs(void)
|
|
{
|
|
kobject_put(&f2fs_feat);
|
|
kset_unregister(&f2fs_kset);
|
|
remove_proc_entry("fs/f2fs", NULL);
|
|
f2fs_proc_root = NULL;
|
|
}
|
|
|
|
int f2fs_register_sysfs(struct f2fs_sb_info *sbi)
|
|
{
|
|
struct super_block *sb = sbi->sb;
|
|
int err;
|
|
|
|
sbi->s_kobj.kset = &f2fs_kset;
|
|
init_completion(&sbi->s_kobj_unregister);
|
|
err = kobject_init_and_add(&sbi->s_kobj, &f2fs_sb_ktype, NULL,
|
|
"%s", sb->s_id);
|
|
if (err)
|
|
goto put_sb_kobj;
|
|
|
|
sbi->s_stat_kobj.kset = &f2fs_kset;
|
|
init_completion(&sbi->s_stat_kobj_unregister);
|
|
err = kobject_init_and_add(&sbi->s_stat_kobj, &f2fs_stat_ktype,
|
|
&sbi->s_kobj, "stat");
|
|
if (err)
|
|
goto put_stat_kobj;
|
|
|
|
sbi->s_feature_list_kobj.kset = &f2fs_kset;
|
|
init_completion(&sbi->s_feature_list_kobj_unregister);
|
|
err = kobject_init_and_add(&sbi->s_feature_list_kobj,
|
|
&f2fs_feature_list_ktype,
|
|
&sbi->s_kobj, "feature_list");
|
|
if (err)
|
|
goto put_feature_list_kobj;
|
|
|
|
if (f2fs_proc_root)
|
|
sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root);
|
|
|
|
if (sbi->s_proc) {
|
|
proc_create_single_data("segment_info", 0444, sbi->s_proc,
|
|
segment_info_seq_show, sb);
|
|
proc_create_single_data("segment_bits", 0444, sbi->s_proc,
|
|
segment_bits_seq_show, sb);
|
|
#ifdef CONFIG_F2FS_IOSTAT
|
|
proc_create_single_data("iostat_info", 0444, sbi->s_proc,
|
|
iostat_info_seq_show, sb);
|
|
#endif
|
|
proc_create_single_data("victim_bits", 0444, sbi->s_proc,
|
|
victim_bits_seq_show, sb);
|
|
}
|
|
return 0;
|
|
put_feature_list_kobj:
|
|
kobject_put(&sbi->s_feature_list_kobj);
|
|
wait_for_completion(&sbi->s_feature_list_kobj_unregister);
|
|
put_stat_kobj:
|
|
kobject_put(&sbi->s_stat_kobj);
|
|
wait_for_completion(&sbi->s_stat_kobj_unregister);
|
|
put_sb_kobj:
|
|
kobject_put(&sbi->s_kobj);
|
|
wait_for_completion(&sbi->s_kobj_unregister);
|
|
return err;
|
|
}
|
|
|
|
void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi)
|
|
{
|
|
if (sbi->s_proc) {
|
|
#ifdef CONFIG_F2FS_IOSTAT
|
|
remove_proc_entry("iostat_info", sbi->s_proc);
|
|
#endif
|
|
remove_proc_entry("segment_info", sbi->s_proc);
|
|
remove_proc_entry("segment_bits", sbi->s_proc);
|
|
remove_proc_entry("victim_bits", sbi->s_proc);
|
|
remove_proc_entry(sbi->sb->s_id, f2fs_proc_root);
|
|
}
|
|
|
|
kobject_del(&sbi->s_stat_kobj);
|
|
kobject_put(&sbi->s_stat_kobj);
|
|
wait_for_completion(&sbi->s_stat_kobj_unregister);
|
|
kobject_del(&sbi->s_feature_list_kobj);
|
|
kobject_put(&sbi->s_feature_list_kobj);
|
|
wait_for_completion(&sbi->s_feature_list_kobj_unregister);
|
|
|
|
kobject_del(&sbi->s_kobj);
|
|
kobject_put(&sbi->s_kobj);
|
|
wait_for_completion(&sbi->s_kobj_unregister);
|
|
}
|