diff options
Diffstat (limited to 'Documentation/filesystems/locking.rst')
| -rw-r--r-- | Documentation/filesystems/locking.rst | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/Documentation/filesystems/locking.rst b/Documentation/filesystems/locking.rst index 77704fde9845..8025df6e6499 100644 --- a/Documentation/filesystems/locking.rst +++ b/Documentation/filesystems/locking.rst @@ -80,7 +80,9 @@ prototypes:: int (*getattr) (struct mnt_idmap *, const struct path *, struct kstat *, u32, unsigned int); ssize_t (*listxattr) (struct dentry *, char *, size_t); int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, u64 len); - void (*update_time)(struct inode *, struct timespec *, int); + void (*update_time)(struct inode *inode, enum fs_update_time type, + int flags); + void (*sync_lazytime)(struct inode *inode); int (*atomic_open)(struct inode *, struct dentry *, struct file *, unsigned open_flag, umode_t create_mode); @@ -117,6 +119,7 @@ getattr: no listxattr: no fiemap: no update_time: no +sync_lazytime: no atomic_open: shared (exclusive if O_CREAT is set in open flags) tmpfile: no fileattr_get: no or exclusive @@ -177,7 +180,6 @@ prototypes:: int (*freeze_fs) (struct super_block *); int (*unfreeze_fs) (struct super_block *); int (*statfs) (struct dentry *, struct kstatfs *); - int (*remount_fs) (struct super_block *, int *, char *); void (*umount_begin) (struct super_block *); int (*show_options)(struct seq_file *, struct dentry *); ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t); @@ -201,7 +203,6 @@ sync_fs: read freeze_fs: write unfreeze_fs: write statfs: maybe(read) (see below) -remount_fs: write umount_begin: no show_options: no (namespace_sem) quota_read: no (see below) @@ -226,8 +227,6 @@ file_system_type prototypes:: - struct dentry *(*mount) (struct file_system_type *, int, - const char *, void *); void (*kill_sb) (struct super_block *); locking rules: @@ -235,13 +234,9 @@ locking rules: ======= ========= ops may block ======= ========= -mount yes kill_sb yes ======= ========= -->mount() returns ERR_PTR or the root dentry; its superblock should be locked -on return. - ->kill_sb() takes a write-locked superblock, does all shutdown work on it, unlocks and drops the reference. @@ -416,6 +411,7 @@ lm_change yes no no lm_breaker_owns_lease: yes no no lm_lock_expirable yes no no lm_expire_lock no no yes +lm_open_conflict yes no no ====================== ============= ================= ========= buffer_head |