From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 29 Sep 2013 00:29:00 +0000 (-0400)
Subject: finish_automount() doesn't need vfsmount_lock for removal from expiry list
X-Git-Tag: firefly_0821_release~176^2~4994^2~76
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=22a7919299c58b768fa86200e5ac651d3e33a37f;p=firefly-linux-kernel-4.4.55.git

finish_automount() doesn't need vfsmount_lock for removal from expiry list

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/namespace.c b/fs/namespace.c
index cd7dbabf0c6c..f57117d9f0ee 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2064,9 +2064,7 @@ fail:
 	/* remove m from any expiration list it may be on */
 	if (!list_empty(&mnt->mnt_expire)) {
 		namespace_lock();
-		br_write_lock(&vfsmount_lock);
 		list_del_init(&mnt->mnt_expire);
-		br_write_unlock(&vfsmount_lock);
 		namespace_unlock();
 	}
 	mntput(m);