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| author | Al Viro <viro@zeniv.linux.org.uk> | 2009-04-07 20:21:18 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-06-12 05:35:59 +0400 |
| commit | dd5cae6e9772ecc62fd374f7a8ec10eb51c96c4d (patch) | |
| tree | 48cfed52f4cc4fc9e2d91b1c8646f438f2f0e110 | |
| parent | 5b857119538daac7118c1364d7ff3613f12b84d3 (diff) | |
| download | linux-dd5cae6e9772ecc62fd374f7a8ec10eb51c96c4d.tar.xz | |
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>
| -rw-r--r-- | fs/namespace.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index 134d494158d9..88a904d5aa23 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 */ |