From: Al Viro <viro@www.linux.org.uk>

fix for too early mntput() in open_namei() - we pin path.mnt down for the
duration of __do_follow_link().  Otherwise we could get the fs where our
symlink lived unmounted while we were in __do_follow_link().  That would end
up with dentry of symlink staying pinned down through the fs shutdown.

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 fs/namei.c |    2 ++
 1 files changed, 2 insertions(+)

diff -puN fs/namei.c~namei-fixes-05-19 fs/namei.c
--- 25/fs/namei.c~namei-fixes-05-19	Fri May 20 15:42:06 2005
+++ 25-akpm/fs/namei.c	Fri May 20 15:42:06 2005
@@ -1524,8 +1524,10 @@ do_link:
 	error = security_inode_follow_link(path.dentry, nd);
 	if (error)
 		goto exit_dput;
+	mntget(path.mnt);
 	error = __do_follow_link(path.dentry, nd);
 	dput(path.dentry);
+	mntput(path.mnt);
 	path.mnt = nd->mnt;
 	if (error)
 		return error;
_