diff options
| author | Miklos Szeredi <mszeredi@redhat.com> | 2016-07-29 12:05:24 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-20 18:09:19 +0200 |
| commit | 54c4ddcbab7396c58e1fc745663417ad7e872137 (patch) | |
| tree | e57ca57251f03784759a09b352abf395fea38e1b /fs/overlayfs | |
| parent | 7a2cfda740e60097c1369c274d2772af9d073b76 (diff) | |
ovl: disallow overlayfs as upperdir
commit 76bc8e2843b66f8205026365966b49ec6da39ae7 upstream.
This does not work and does not make sense. So instead of fixing it
(probably not hard) just disallow.
Reported-by: Andrei Vagin <avagin@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/overlayfs')
| -rw-r--r-- | fs/overlayfs/super.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index a1acc6004a91..70a7bbe199d0 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -376,7 +376,8 @@ static struct ovl_entry *ovl_alloc_entry(unsigned int numlower) static bool ovl_dentry_remote(struct dentry *dentry) { return dentry->d_flags & - (DCACHE_OP_REVALIDATE | DCACHE_OP_WEAK_REVALIDATE); + (DCACHE_OP_REVALIDATE | DCACHE_OP_WEAK_REVALIDATE | + DCACHE_OP_REAL); } static bool ovl_dentry_weird(struct dentry *dentry) |