commit fc3787b3cee7fb7e6e842f33bf5b94b9ccb3f1b9
Author: Erez Zadok <[EMAIL PROTECTED]>
Date: Fri Feb 15 21:35:43 2008 -0500
Unionfs: follow_link locking fixes
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
diff --git a/fs/unionfs/inode.c b/fs/unionfs/inode.c
index bd19f93..1798f27 100644
--- a/fs/unionfs/inode.c
+++ b/fs/unionfs/inode.c
@@ -812,7 +812,11 @@ static void *unionfs_follow_link(struct dentry *dentry,
struct nameidata *nd)
err = 0;
out:
- unionfs_check_dentry(dentry);
+ if (!err) {
+ unionfs_lock_dentry(dentry, UNIONFS_DMUTEX_CHILD);
+ unionfs_check_dentry(dentry);
+ unionfs_unlock_dentry(dentry);
+ }
return ERR_PTR(err);
}
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