linux-kernel - Re: [PATCH 2.6.24-rc3-mm1] IPC: consolidate sem_exit_ns(), msg_exit_ns and shm_exit

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Message-Id: <20071126224438.df547263.akpm@linux-foundation.org>
Date:	Mon, 26 Nov 2007 22:44:38 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Pierre Peiffer <pierre.peiffer@...l.net>
Cc:	linux-kernel@...r.kernel.org, containers@...ts.osdl.org
Subject: Re: [PATCH 2.6.24-rc3-mm1] IPC: consolidate sem_exit_ns(),
 msg_exit_ns and shm_exit_ns()

On Fri, 23 Nov 2007 17:52:50 +0100 Pierre Peiffer <pierre.peiffer@...l.net> wrote:

> sem_exit_ns(), msg_exit_ns() and shm_exit_ns() are all called when an ipc_namespace is
> released to free all ipcs of each type.
> But in fact, they do the same thing: they loop around all ipcs to free them
> individually by calling a specific routine.
> 
> This patch proposes to consolidate this by introducing a common function, free_ipcs(),
> that do the job. The specific routine to call on each individual ipcs is passed as
> parameter. For this, these ipc-specific 'free' routines are reworked to take a
> generic 'struct ipc_perm' as parameter.

This conflicts in more-than-trivial ways with Pavel's
move-the-ipc-namespace-under-ipc_ns-option.patch, which was in
2.6.24-rc3-mm1.

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