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223 lines
5.8 KiB
223 lines
5.8 KiB
/* 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 ([email protected]) |
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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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struct pipe_inode_info; |
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/* |
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* block/bdev.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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void emergency_thaw_bdev(struct super_block *sb); |
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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 emergency_thaw_bdev(struct super_block *sb) |
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{ |
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return 0; |
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} |
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#endif /* CONFIG_BLOCK */ |
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/* |
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* buffer.c |
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*/ |
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int __block_write_begin_int(struct folio *folio, loff_t pos, unsigned len, |
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get_block_t *get_block, const 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 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 vfs_path_lookup(struct dentry *, struct vfsmount *, |
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const char *, unsigned int, struct path *); |
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int do_rmdir(int dfd, struct filename *name); |
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int do_unlinkat(int dfd, struct filename *name); |
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int may_linkat(struct user_namespace *mnt_userns, struct path *link); |
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int do_renameat2(int olddfd, struct filename *oldname, int newdfd, |
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struct filename *newname, unsigned int flags); |
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int do_mkdirat(int dfd, struct filename *name, umode_t mode); |
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int do_symlinkat(struct filename *from, int newdfd, struct filename *to); |
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int do_linkat(int olddfd, struct filename *old, int newdfd, |
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struct filename *new, int flags); |
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/* |
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* namespace.c |
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*/ |
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extern struct vfsmount *lookup_mnt(const struct path *); |
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extern int finish_automount(struct vfsmount *, const 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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extern bool may_mount(void); |
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int path_mount(const char *dev_name, struct path *path, |
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const char *type_page, unsigned long flags, void *data_page); |
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int path_umount(struct path *path, int flags); |
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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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struct super_block *user_get_super(dev_t, bool excl); |
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void put_super(struct super_block *sb); |
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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(const struct path *, |
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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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extern struct file *__close_fd_get_file(unsigned int fd); |
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long do_sys_ftruncate(unsigned int fd, loff_t length, int small); |
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int chmod_common(const struct path *path, 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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int chown_common(const struct path *path, uid_t user, gid_t group); |
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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 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 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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* 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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int getname_statx_lookup_flags(int flags); |
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int do_statx(int dfd, struct filename *filename, unsigned int flags, |
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unsigned int mask, struct statx __user *buffer); |
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/* |
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* fs/splice.c: |
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*/ |
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long splice_file_to_pipe(struct file *in, |
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struct pipe_inode_info *opipe, |
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loff_t *offset, |
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size_t len, unsigned int flags); |
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/* |
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* fs/xattr.c: |
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*/ |
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struct xattr_name { |
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char name[XATTR_NAME_MAX + 1]; |
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}; |
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struct xattr_ctx { |
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/* Value of attribute */ |
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union { |
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const void __user *cvalue; |
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void __user *value; |
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}; |
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void *kvalue; |
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size_t size; |
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/* Attribute name */ |
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struct xattr_name *kname; |
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unsigned int flags; |
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}; |
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ssize_t do_getxattr(struct user_namespace *mnt_userns, |
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struct dentry *d, |
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struct xattr_ctx *ctx); |
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int setxattr_copy(const char __user *name, struct xattr_ctx *ctx); |
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int do_setxattr(struct user_namespace *mnt_userns, struct dentry *dentry, |
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struct xattr_ctx *ctx);
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