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authorThomas Gleixner <tglx@linutronix.de>2013-04-24 20:33:46 +0200
committerThomas Gleixner <tglx@linutronix.de>2013-04-24 20:33:54 +0200
commit6402c7dc2a19c19bd8cdc7d80878b850da418942 (patch)
treecda2ea2df40442e2aa016119f3548cc504127ea8 /fs/pnode.c
parent77c675ba18836802f6b73d2d773481d06ebc0f04 (diff)
parent60d509fa6a9c4653a86ad830e4c4b30360b23f0e (diff)
downloadolio-linux-3.10-6402c7dc2a19c19bd8cdc7d80878b850da418942.tar.xz
olio-linux-3.10-6402c7dc2a19c19bd8cdc7d80878b850da418942.zip
Merge branch 'linus' into timers/core
Reason: Get upstream fixes before adding conflicting code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'fs/pnode.c')
-rw-r--r--fs/pnode.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/pnode.c b/fs/pnode.c
index 3e000a51ac0..8b29d2164da 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -9,6 +9,7 @@
#include <linux/mnt_namespace.h>
#include <linux/mount.h>
#include <linux/fs.h>
+#include <linux/nsproxy.h>
#include "internal.h"
#include "pnode.h"
@@ -220,6 +221,7 @@ static struct mount *get_source(struct mount *dest,
int propagate_mnt(struct mount *dest_mnt, struct dentry *dest_dentry,
struct mount *source_mnt, struct list_head *tree_list)
{
+ struct user_namespace *user_ns = current->nsproxy->mnt_ns->user_ns;
struct mount *m, *child;
int ret = 0;
struct mount *prev_dest_mnt = dest_mnt;
@@ -237,6 +239,10 @@ int propagate_mnt(struct mount *dest_mnt, struct dentry *dest_dentry,
source = get_source(m, prev_dest_mnt, prev_src_mnt, &type);
+ /* Notice when we are propagating across user namespaces */
+ if (m->mnt_ns->user_ns != user_ns)
+ type |= CL_UNPRIVILEGED;
+
child = copy_tree(source, source->mnt.mnt_root, type);
if (IS_ERR(child)) {
ret = PTR_ERR(child);