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-rw-r--r--Documentation/filesystems/Locking6
1 files changed, 2 insertions, 4 deletions
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index 4471a416c274..2e994efe12cb 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -166,13 +166,11 @@ prototypes:
166 void (*kill_sb) (struct super_block *); 166 void (*kill_sb) (struct super_block *);
167locking rules: 167locking rules:
168 may block 168 may block
169get_sb yes
170mount yes 169mount yes
171kill_sb yes 170kill_sb yes
172 171
173->get_sb() returns error or 0 with locked superblock attached to the vfsmount 172->mount() returns ERR_PTR or the root dentry; its superblock should be locked
174(exclusive on ->s_umount). 173on return.
175->mount() returns ERR_PTR or the root dentry.
176->kill_sb() takes a write-locked superblock, does all shutdown work on it, 174->kill_sb() takes a write-locked superblock, does all shutdown work on it,
177unlocks and drops the reference. 175unlocks and drops the reference.
178 176