GIT: unionfs2-2.6.27.y: Unionfs: Document unionfs_d_release locking

[Erez Zadok]

commit a6ac4c886ca3b5fb355de484cb9386afc6410f8a
Author: Josef 'Jeff' Sipek <jsipek at cs.sunysb.edu>
Date:   Sun Mar 18 16:30:45 2007 -0400

    Unionfs: Document unionfs_d_release locking
    
    Signed-off-by: Josef 'Jeff' Sipek <jsipek at cs.sunysb.edu>

diff --git a/fs/unionfs/dentry.c b/fs/unionfs/dentry.c
index c841f08..4756b78 100644
--- a/fs/unionfs/dentry.c
+++ b/fs/unionfs/dentry.c
@@ -286,6 +286,10 @@ static int unionfs_d_revalidate(struct dentry *dentry, struct nameidata *nd)
 	return err;
 }
 
+/*
+ * At this point no one can reference this dentry, so we don't have to be
+ * careful about concurrent access.
+ */
 static void unionfs_d_release(struct dentry *dentry)
 {
 	int bindex, bstart, bend;