Gitweb: http://git.kernel.org/linus/dd5cae6e9772ecc62fd374f7a8ec10eb51c96c4d
Commit: dd5cae6e9772ecc62fd374f7a8ec10eb51c96c4d
Parent: 5b857119538daac7118c1364d7ff3613f12b84d3
Author: Al Viro <viro@zeniv.linux.org.uk>
AuthorDate: Tue Apr 7 12:21:18 2009 -0400
Committer: Al Viro <viro@zeniv.linux.org.uk>
CommitDate: Thu Jun 11 21:35:59 2009 -0400
Don't bother with check_mnt() in do_add_mount() on shrinkable ones
These guys are what we add as submounts; checks for "is that attached in
our namespace" are simply irrelevant for those and counterproductive for
use of private vfsmount trees a-la what NFS folks want.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/namespace.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/namespace.c b/fs/namespace.c
index 134d494..88a904d 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1698,7 +1698,7 @@ int do_add_mount(struct vfsmount *newmnt, struct path *path,
follow_down(&path->mnt, &path->dentry))
;
err = -EINVAL;
- if (!check_mnt(path->mnt))
+ if (!(mnt_flags & MNT_SHRINKABLE) && !check_mnt(path->mnt))
goto unlock;
/* Refuse the same filesystem on the same mount point */
--
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
