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896f8d23d0
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl4yEegQHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgpn5ZD/4/WlXs2cUDgg1C65bzZFO4qvevm+VkXmsk GbyrnFstRekvSH01/ZQxlyDVKS8Wux0XIJ6OArCh1047LvL1bEE5dvOW5iIiwa/r grjQuwFAzIPsE2fgcAO17BKIUzq2Z96+hwDzH7dw0i32yBuLvNmY/1SxcCHKfPut uzGyp7t3/2dIHbpWILRndMYe0O9j9ubmOMvKyKTwy723yDEafsUoqu2mlpigzTq4 2i+DbYBIAd8qmLqG/m3e+vOt9xodJ2Q0hlO+v6DcP2SKXU64Hb/N98HadR//aWP9 41DBXqs+dvDBcu3Jxb80PFUTiOQZECJivkns5cNcjuSXmNkOuQhDQR5K372AHmR9 m6e6FSBxwej8HselAZCI6yu9uBKd0i+MM4FnFs/O73QGYx2ayXsEXp/Jad9xiYgW pC5XJTSqJQhPE0AYYEOzHPPcBLBcpvXHkvmGKdjkNb8OLhhgh2S/YG0DNC+8ABXr j1uIe/n3kJEEmOanUyiitGyLmDq+mXd7aCVKJL/J0KiGD8Gkc1avAZ1ZrTQgjujY FqqBFawO8gv3g0L4WMI8JI+HJGMnA488obet6UKm9+l/Z/urEpXzDAKf/W/vnx2B LD0FSA0bCh1tyO6JU+avFwHlwShtV7/rx/OhrmCK7CCYKtZCA2IEctxyr8U+PBIv DtwIMTYTsA== =ZZUI -----END PGP SIGNATURE----- Merge tag 'for-5.6/io_uring-vfs-2020-01-29' of git://git.kernel.dk/linux-block Pull io_uring updates from Jens Axboe: - Support for various new opcodes (fallocate, openat, close, statx, fadvise, madvise, openat2, non-vectored read/write, send/recv, and epoll_ctl) - Faster ring quiesce for fileset updates - Optimizations for overflow condition checking - Support for max-sized clamping - Support for probing what opcodes are supported - Support for io-wq backend sharing between "sibling" rings - Support for registering personalities - Lots of little fixes and improvements * tag 'for-5.6/io_uring-vfs-2020-01-29' of git://git.kernel.dk/linux-block: (64 commits) io_uring: add support for epoll_ctl(2) eventpoll: support non-blocking do_epoll_ctl() calls eventpoll: abstract out epoll_ctl() handler io_uring: fix linked command file table usage io_uring: support using a registered personality for commands io_uring: allow registering credentials io_uring: add io-wq workqueue sharing io-wq: allow grabbing existing io-wq io_uring/io-wq: don't use static creds/mm assignments io-wq: make the io_wq ref counted io_uring: fix refcounting with batched allocations at OOM io_uring: add comment for drain_next io_uring: don't attempt to copy iovec for READ/WRITE io_uring: honor IOSQE_ASYNC for linked reqs io_uring: prep req when do IOSQE_ASYNC io_uring: use labeled array init in io_op_defs io_uring: optimise sqe-to-req flags translation io_uring: remove REQ_F_IO_DRAINED io_uring: file switch work needs to get flushed on exit io_uring: hide uring_fd in ctx ...
192 lines
5.2 KiB
C
192 lines
5.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* fs/ internal definitions
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*
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* Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*/
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struct super_block;
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struct file_system_type;
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struct iomap;
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struct iomap_ops;
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struct linux_binprm;
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struct path;
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struct mount;
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struct shrink_control;
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struct fs_context;
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struct user_namespace;
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/*
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* block_dev.c
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*/
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#ifdef CONFIG_BLOCK
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extern void __init bdev_cache_init(void);
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extern int __sync_blockdev(struct block_device *bdev, int wait);
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#else
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static inline void bdev_cache_init(void)
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{
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}
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static inline int __sync_blockdev(struct block_device *bdev, int wait)
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{
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return 0;
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}
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#endif
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/*
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* buffer.c
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*/
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extern void guard_bio_eod(struct bio *bio);
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extern int __block_write_begin_int(struct page *page, loff_t pos, unsigned len,
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get_block_t *get_block, struct iomap *iomap);
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/*
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* char_dev.c
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*/
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extern void __init chrdev_init(void);
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/*
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* fs_context.c
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*/
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extern const struct fs_context_operations legacy_fs_context_ops;
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extern int parse_monolithic_mount_data(struct fs_context *, void *);
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extern void fc_drop_locked(struct fs_context *);
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extern void vfs_clean_context(struct fs_context *fc);
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extern int finish_clean_context(struct fs_context *fc);
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/*
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* namei.c
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*/
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extern int filename_lookup(int dfd, struct filename *name, unsigned flags,
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struct path *path, struct path *root);
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extern int user_path_mountpoint_at(int, const char __user *, unsigned int, struct path *);
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extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
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const char *, unsigned int, struct path *);
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long do_mknodat(int dfd, const char __user *filename, umode_t mode,
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unsigned int dev);
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long do_mkdirat(int dfd, const char __user *pathname, umode_t mode);
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long do_rmdir(int dfd, const char __user *pathname);
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long do_unlinkat(int dfd, struct filename *name);
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long do_symlinkat(const char __user *oldname, int newdfd,
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const char __user *newname);
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int do_linkat(int olddfd, const char __user *oldname, int newdfd,
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const char __user *newname, int flags);
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/*
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* namespace.c
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*/
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extern void *copy_mount_options(const void __user *);
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extern char *copy_mount_string(const void __user *);
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extern struct vfsmount *lookup_mnt(const struct path *);
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extern int finish_automount(struct vfsmount *, struct path *);
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extern int sb_prepare_remount_readonly(struct super_block *);
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extern void __init mnt_init(void);
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extern int __mnt_want_write_file(struct file *);
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extern void __mnt_drop_write_file(struct file *);
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extern void dissolve_on_fput(struct vfsmount *);
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/*
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* fs_struct.c
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*/
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extern void chroot_fs_refs(const struct path *, const struct path *);
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/*
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* file_table.c
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*/
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extern struct file *alloc_empty_file(int, const struct cred *);
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extern struct file *alloc_empty_file_noaccount(int, const struct cred *);
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/*
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* super.c
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*/
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extern int reconfigure_super(struct fs_context *);
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extern bool trylock_super(struct super_block *sb);
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extern struct super_block *user_get_super(dev_t);
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extern bool mount_capable(struct fs_context *);
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/*
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* open.c
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*/
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struct open_flags {
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int open_flag;
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umode_t mode;
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int acc_mode;
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int intent;
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int lookup_flags;
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};
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extern struct file *do_filp_open(int dfd, struct filename *pathname,
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const struct open_flags *op);
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extern struct file *do_file_open_root(struct dentry *, struct vfsmount *,
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const char *, const struct open_flags *);
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extern struct open_how build_open_how(int flags, umode_t mode);
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extern int build_open_flags(const struct open_how *how, struct open_flags *op);
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long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
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long do_faccessat(int dfd, const char __user *filename, int mode);
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int do_fchmodat(int dfd, const char __user *filename, umode_t mode);
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int do_fchownat(int dfd, const char __user *filename, uid_t user, gid_t group,
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int flag);
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extern int vfs_open(const struct path *, struct file *);
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/*
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* inode.c
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*/
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extern long prune_icache_sb(struct super_block *sb, struct shrink_control *sc);
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extern void inode_add_lru(struct inode *inode);
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extern int dentry_needs_remove_privs(struct dentry *dentry);
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/*
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* fs-writeback.c
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*/
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extern void inode_io_list_del(struct inode *inode);
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extern long get_nr_dirty_inodes(void);
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extern int invalidate_inodes(struct super_block *, bool);
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/*
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* dcache.c
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*/
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extern int d_set_mounted(struct dentry *dentry);
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extern long prune_dcache_sb(struct super_block *sb, struct shrink_control *sc);
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extern struct dentry *d_alloc_cursor(struct dentry *);
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extern struct dentry * d_alloc_pseudo(struct super_block *, const struct qstr *);
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extern char *simple_dname(struct dentry *, char *, int);
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extern void dput_to_list(struct dentry *, struct list_head *);
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extern void shrink_dentry_list(struct list_head *);
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/*
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* read_write.c
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*/
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extern int rw_verify_area(int, struct file *, const loff_t *, size_t);
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/*
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* pipe.c
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*/
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extern const struct file_operations pipefifo_fops;
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/*
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* fs_pin.c
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*/
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extern void group_pin_kill(struct hlist_head *p);
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extern void mnt_pin_kill(struct mount *m);
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/*
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* fs/nsfs.c
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*/
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extern const struct dentry_operations ns_dentry_operations;
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/* direct-io.c: */
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int sb_init_dio_done_wq(struct super_block *sb);
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/*
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* fs/stat.c:
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*/
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unsigned vfs_stat_set_lookup_flags(unsigned *lookup_flags, int flags);
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int cp_statx(const struct kstat *stat, struct statx __user *buffer);
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