[PATCH] autofs4 - autofs4_follow_link false negative fix

[Ian Kent <raven@themaw.net>]

Hi Andrew,

The check for an empty directory in the autofs4_follow_link method fails 
occassionally due to old dentrys. We had the same problem 
autofs4_revalidate ages ago. I thought we wouldn't need this in 
autofs4_follow_link, silly me.

Signed-off-by: Ian Kent <raven@themaw.net>

Ian

-- 

--- linux-2.6.18-rc4-mm1/fs/autofs4/root.c.follow_link-false-negative	2006-08-14 10:13:59.000000000 +0800
+++ linux-2.6.18-rc4-mm1/fs/autofs4/root.c	2006-08-14 10:15:26.000000000 +0800
@@ -359,7 +359,7 @@ static void *autofs4_follow_link(struct 
 	 * don't try to mount it again.
 	 */
 	spin_lock(&dcache_lock);
-	if (!d_mountpoint(dentry) && list_empty(&dentry->d_subdirs)) {
+	if (!d_mountpoint(dentry) && __simple_empty(dentry)) {
 		spin_unlock(&dcache_lock);
 
 		status = try_to_fill_dentry(dentry, 0);
-
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