1 Git: dd5cae6e9772ecc62fd374f7a8ec10eb51c96c4d
2 From: Al Viro <viro@zeniv.linux.org.uk>
3 Subject: Don't bother with check_mnt() in do_add_mount() on shrinkable ones
4 Date: Tue Apr 7 12:21:18 2009 -0400
6 References: bnc#490030, bnc#531633
8 These guys are what we add as submounts; checks for "is that attached in
9 our namespace" are simply irrelevant for those and counterproductive for
10 use of private vfsmount trees a-la what NFS folks want.
12 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 Acked-by: NeilBrown <neilb@suse.de>
17 1 file changed, 1 insertion(+), 1 deletion(-)
19 --- linux-2.6.27-SLE11_BRANCH.orig/fs/namespace.c
20 +++ linux-2.6.27-SLE11_BRANCH/fs/namespace.c
21 @@ -1658,7 +1658,7 @@ int do_add_mount(struct vfsmount *newmnt
22 follow_down(&path->mnt, &path->dentry))
25 - if (!check_mnt(path->mnt))
26 + if (!(mnt_flags & MNT_SHRINKABLE) && !check_mnt(path->mnt))
29 /* Refuse the same filesystem on the same mount point */