linux-kernel - [RFC, PATCH] fix SEM

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Message-ID: <47EFFD1C.5020204@colorfullife.com>
Date:	Sun, 30 Mar 2008 22:50:36 +0200
From:	Manfred Spraul <manfred@...orfullife.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Pavel Emelyanov <xemul@...nvz.org>
Subject: [RFC, PATCH] fix SEM_UNDO with namespaces

Hi,

the attached patch should fix the combination of CLONE_NEWIPC with 
shared sysv undo structures (the common case, just 
sys_unshare(CLONE_NEWIPC)):
lookup_undo() now locates the undo array based on both semid and the 
namespace pointer.
Additionally, the patch tries to clean the code up by using the linked 
list macros from <linux/list.h> instead of single linked lists.

The patch passes a few quick tests, I'm interested in feedback. Are 
there test apps for testing the IPC namespace code?

--
    Manfred

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