diff options
Diffstat (limited to 'Documentation/filesystems/Locking')
| -rw-r--r-- | Documentation/filesystems/Locking | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index 1045da582b9..3abf08f1b14 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking @@ -142,15 +142,16 @@ see also dquot_operations section. --------------------------- file_system_type --------------------------- prototypes: - struct super_block *(*get_sb) (struct file_system_type *, int, - const char *, void *); + struct int (*get_sb) (struct file_system_type *, int, + const char *, void *, struct vfsmount *); void (*kill_sb) (struct super_block *); locking rules: may block BKL get_sb yes yes kill_sb yes yes -->get_sb() returns error or a locked superblock (exclusive on ->s_umount). +->get_sb() returns error or 0 with locked superblock attached to the vfsmount +(exclusive on ->s_umount). ->kill_sb() takes a write-locked superblock, does all shutdown work on it, unlocks and drops the reference. |