From: Alexey Dobriyan <adobriyan@gmail.com>
To: akpm@linux-foundation.org, containers@lists.linux-foundation.org
Cc: xemul@parallels.com, serue@us.ibm.com, dave@linux.vnet.ibm.com,
mingo@elte.hu, orenl@cs.columbia.edu, hch@infradead.org,
torvalds@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: [PATCH 03/30] ipcns: remove useless get/put while CLONE_NEWIPC
Date: Fri, 10 Apr 2009 06:33:35 +0400 [thread overview]
Message-ID: <20090410023335.GD27788@x200.localdomain> (raw)
copy_ipcs() doesn't actually copy anything. If new ipcns is created,
it's created from scratch, in this case get/put on old ipcns isn't needed.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---
ipc/namespace.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
--- a/ipc/namespace.c
+++ b/ipc/namespace.c
@@ -50,15 +50,11 @@ struct ipc_namespace *copy_ipcs(unsigned long flags, struct ipc_namespace *ns)
{
struct ipc_namespace *new_ns;
- BUG_ON(!ns);
- get_ipc_ns(ns);
-
if (!(flags & CLONE_NEWIPC))
- return ns;
+ return get_ipc_ns(ns);
new_ns = clone_ipc_ns(ns);
- put_ipc_ns(ns);
return new_ns;
}
next reply other threads:[~2009-04-10 2:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-10 2:33 Alexey Dobriyan [this message]
2009-04-10 15:19 ` [PATCH 03/30] ipcns: remove useless get/put while CLONE_NEWIPC Serge E. Hallyn
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