diff options
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 151739a55eaf..b3ae77cccbb6 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -30,6 +30,7 @@ #define SEEK_SET 0 /* seek relative to beginning of file */ #define SEEK_CUR 1 /* seek relative to current file position */ #define SEEK_END 2 /* seek relative to end of file */ +#define SEEK_MAX SEEK_END /* And dynamically-tunable limits and defaults: */ struct files_stat_struct { @@ -91,6 +92,7 @@ extern int dir_notify_enable; /* public flags for file_system_type */ #define FS_REQUIRES_DEV 1 #define FS_BINARY_MOUNTDATA 2 +#define FS_HAS_SUBTYPE 4 #define FS_REVAL_DOT 16384 /* Check the paths ".", ".." for staleness */ #define FS_RENAME_DOES_D_MOVE 32768 /* FS will handle d_move() * during rename() internally. @@ -696,12 +698,13 @@ struct file_ra_state { unsigned long size; unsigned long flags; /* ra flags RA_FLAG_xxx*/ unsigned long cache_hit; /* cache hit count*/ - unsigned long prev_page; /* Cache last read() position */ + unsigned long prev_index; /* Cache last read() position */ unsigned long ahead_start; /* Ahead window */ unsigned long ahead_size; unsigned long ra_pages; /* Maximum readahead window */ unsigned long mmap_hit; /* Cache hit stat for mmap accesses */ unsigned long mmap_miss; /* Cache miss stat for mmap accesses */ + unsigned int prev_offset; /* Offset where last read() ended in a page */ }; #define RA_FLAG_MISS 0x01 /* a cache miss occured against this file */ #define RA_FLAG_INCACHE 0x02 /* file is already in cache */ @@ -785,6 +788,7 @@ struct file_lock_operations { struct lock_manager_operations { int (*fl_compare_owner)(struct file_lock *, struct file_lock *); void (*fl_notify)(struct file_lock *); /* unblock callback */ + int (*fl_grant)(struct file_lock *, struct file_lock *, int); void (*fl_copy_lock)(struct file_lock *, struct file_lock *); void (*fl_release_private)(struct file_lock *); void (*fl_break)(struct file_lock *); @@ -845,22 +849,19 @@ extern int fcntl_getlease(struct file *filp); /* fs/sync.c */ extern int do_sync_mapping_range(struct address_space *mapping, loff_t offset, loff_t endbyte, unsigned int flags); -static inline int do_sync_file_range(struct file *file, loff_t offset, - loff_t endbyte, unsigned int flags) -{ - return do_sync_mapping_range(file->f_mapping, offset, endbyte, flags); -} /* fs/locks.c */ extern void locks_init_lock(struct file_lock *); extern void locks_copy_lock(struct file_lock *, struct file_lock *); extern void locks_remove_posix(struct file *, fl_owner_t); extern void locks_remove_flock(struct file *); -extern int posix_test_lock(struct file *, struct file_lock *, struct file_lock *); -extern int posix_lock_file_conf(struct file *, struct file_lock *, struct file_lock *); -extern int posix_lock_file(struct file *, struct file_lock *); +extern int posix_test_lock(struct file *, struct file_lock *); +extern int posix_lock_file(struct file *, struct file_lock *, struct file_lock *); extern int posix_lock_file_wait(struct file *, struct file_lock *); extern int posix_unblock_lock(struct file *, struct file_lock *); +extern int vfs_test_lock(struct file *, struct file_lock *); +extern int vfs_lock_file(struct file *, unsigned int, struct file_lock *, struct file_lock *); +extern int vfs_cancel_lock(struct file *filp, struct file_lock *fl); extern int flock_lock_file_wait(struct file *filp, struct file_lock *fl); extern int __break_lease(struct inode *inode, unsigned int flags); extern void lease_get_mtime(struct inode *, struct timespec *time); @@ -957,6 +958,12 @@ struct super_block { /* Granularity of c/m/atime in ns. Cannot be worse than a second */ u32 s_time_gran; + + /* + * Filesystem subtype. If non-empty the filesystem type field + * in /proc/mounts will be "type.subtype" + */ + char *s_subtype; }; extern struct timespec current_fs_time(struct super_block *sb); @@ -1417,7 +1424,7 @@ extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *, extern int vfs_statfs(struct dentry *, struct kstatfs *); /* /sys/fs */ -extern struct subsystem fs_subsys; +extern struct kset fs_subsys; #define FLOCK_VERIFY_READ 1 #define FLOCK_VERIFY_WRITE 2 @@ -1732,6 +1739,8 @@ extern ssize_t generic_file_sendfile(struct file *, loff_t *, size_t, read_actor extern void do_generic_mapping_read(struct address_space *mapping, struct file_ra_state *, struct file *, loff_t *, read_descriptor_t *, read_actor_t); +extern int generic_segment_checks(const struct iovec *iov, + unsigned long *nr_segs, size_t *count, int access_flags); /* fs/splice.c */ extern ssize_t generic_file_splice_read(struct file *, loff_t *, |