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Date: Fri, 04 Jul 2008 07:19:37 +0530
From: Balbir Singh <balbir@linux.vnet.ibm.com>
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To: Hugh Dickins <hugh@veritas.com>
CC: Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org,
       linux-mm@kvack.org
Subject: Re: [PATCH 2.6.26-rc8-mm1] memrlimit: fix mmap_sem deadlock
References: <Pine.LNX.4.64.0807032143110.10641@blonde.site>
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Hugh Dickins wrote:
> "ps -f" hung after "killall make" of make -j20 kernel builds.  It's
> generally considered bad manners to down_write something you already
> have down_read.  exit_mm up_reads before calling mm_update_next_owner,
> so I guess exec_mmap can safely do so too.  (And with that repositioning
> there's not much point in mm_need_new_owner allowing for NULL mm.)
> 
> Signed-off-by: Hugh Dickins <hugh@veritas.com>

Thanks!

Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>

-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL