It seems GCC generates a better code in that way, so I changed that statement.
Btw, they have the same semantic, so I'm sending this patch due to performance 
issues.

Signed-off-by: Raphael S.Carvalho <[email protected]>
---
 kernel/nsproxy.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c
index 78e2ecb..21da3d1 100644
--- a/kernel/nsproxy.c
+++ b/kernel/nsproxy.c
@@ -148,7 +148,8 @@ int copy_namespaces(unsigned long flags, struct task_struct 
*tsk)
         * means share undolist with parent, so we must forbid using
         * it along with CLONE_NEWIPC.
         */
-       if ((flags & CLONE_NEWIPC) && (flags & CLONE_SYSVSEM)) {
+       if ((flags & (CLONE_NEWIPC | CLONE_SYSVSEM)) ==
+               (CLONE_NEWIPC | CLONE_SYSVSEM)) {
                err = -EINVAL;
                goto out;
        }
-- 
1.7.2.5

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