diff options
Diffstat (limited to 'Documentation/filesystems/Locking')
| -rw-r--r-- | Documentation/filesystems/Locking | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index 4471a41..2e994ef 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking @@ -166,13 +166,11 @@ prototypes: void (*kill_sb) (struct super_block *); locking rules: may block -get_sb yes mount yes kill_sb yes -->get_sb() returns error or 0 with locked superblock attached to the vfsmount -(exclusive on ->s_umount). -->mount() returns ERR_PTR or the root dentry. +->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. |
