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authorIngo Molnar <mingo@kernel.org>2013-03-21 11:03:10 +0100
committerIngo Molnar <mingo@kernel.org>2013-03-21 11:03:10 +0100
commit3bf2391729822e591dcfbbd1e9dd2f450968cdcb (patch)
tree80a0499e57a4cc95b6caea559400b5226ebe606f /kernel/fork.c
parent86e213e1d901fbeaf6e57d13c5edd925fadddcbe (diff)
parentfd4a5aef002bb57e8a35ed34d8a878034b9bde94 (diff)
Merge branch 'perf/urgent' into perf/core
Merge in all pending fixes, before pulling the latest development bits from Arnaldo - which will involve merge conflicts. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 8d932b1c9056..1766d324d5e3 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1141,6 +1141,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
if ((clone_flags & (CLONE_NEWNS|CLONE_FS)) == (CLONE_NEWNS|CLONE_FS))
return ERR_PTR(-EINVAL);
+ if ((clone_flags & (CLONE_NEWUSER|CLONE_FS)) == (CLONE_NEWUSER|CLONE_FS))
+ return ERR_PTR(-EINVAL);
+
/*
* Thread groups must share signals as well, and detached threads
* can only be started up within the thread group.
@@ -1807,7 +1810,7 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags)
* If unsharing a user namespace must also unshare the thread.
*/
if (unshare_flags & CLONE_NEWUSER)
- unshare_flags |= CLONE_THREAD;
+ unshare_flags |= CLONE_THREAD | CLONE_FS;
/*
* If unsharing a pid namespace must also unshare the thread.
*/