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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;
 }
 

             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 ` Serge E. Hallyn

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