From: Ian Kent <raven@themaw.net>
Date: Thu, 24 Mar 2011 17:51:25 +0000 (+0800)
Subject: autofs4 - fix d_manage() return on rcu-walk
X-Git-Tag: firefly_0821_release~7613^2~1803^2~11
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=83fb96bfc792e5ca693e53f7fd878d51b8493da8;hp=d4a85e35d1465da055264407d8395e84483084e6;p=firefly-linux-kernel-4.4.55.git

autofs4 - fix d_manage() return on rcu-walk

The daemon never needs to block and, in the rcu-walk case an error
return isn't used, so always return zero.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 3a93d3552486..ebbfa0ce6d7b 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -444,6 +444,8 @@ int autofs4_d_manage(struct dentry *dentry, bool rcu_walk)
 
 	/* The daemon never waits. */
 	if (autofs4_oz_mode(sbi)) {
+		if (rcu_walk)
+			return 0;
 		if (!d_mountpoint(dentry))
 			return -EISDIR;
 		return 0;