Re: [PATCH 1/1] kernel/nsproxy.c: Improving a snippet of code.
From: Serge Hallyn
Date: Wed Feb 27 2013 - 15:09:26 EST
Quoting Raphael S.Carvalho (raphael.scarv@xxxxxxxxx):
> 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 <raphael.scarv@xxxxxxxxx>
Acked-by: Serge E. Hallyn <serge.hallyn@xxxxxxxxxx>
> ---
> 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
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/