From: Rik van Riel <riel@redhat.com>
To: Mel Gorman <mgorman@suse.de>
Cc: akpm@linux-foundation.org, Andrea Arcangeli <aarcange@redhat.com>,
raz ben yehuda <raziebe@gmail.com>,
kosaki.motohiro@jp.fujitsu.com,
lkml <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org, stable@kernel.org
Subject: Re: [PATCH] mm: Check if PTE is already allocated during page fault
Date: Fri, 15 Apr 2011 09:23:11 -0400 [thread overview]
Message-ID: <4DA846BF.7020504@redhat.com> (raw)
In-Reply-To: <20110415101248.GB22688@suse.de>
On 04/15/2011 06:12 AM, Mel Gorman wrote:
> This patch simply re-adds the check normally done by pte_alloc_map to
> check if the PTE needs to be allocated before taking the page table
> lock. The effect is noticable in page_test from aim9.
> Reported-by: Raz Ben Yehuda<raziebe@gmail.com>
> Signed-off-by: Mel Gorman<mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
--
All rights reversed
WARNING: multiple messages have this Message-ID (diff)
From: Rik van Riel <riel@redhat.com>
To: Mel Gorman <mgorman@suse.de>
Cc: akpm@linux-foundation.org, Andrea Arcangeli <aarcange@redhat.com>,
raz ben yehuda <raziebe@gmail.com>,
kosaki.motohiro@jp.fujitsu.com,
lkml <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org, stable@kernel.org
Subject: Re: [PATCH] mm: Check if PTE is already allocated during page fault
Date: Fri, 15 Apr 2011 09:23:11 -0400 [thread overview]
Message-ID: <4DA846BF.7020504@redhat.com> (raw)
In-Reply-To: <20110415101248.GB22688@suse.de>
On 04/15/2011 06:12 AM, Mel Gorman wrote:
> This patch simply re-adds the check normally done by pte_alloc_map to
> check if the PTE needs to be allocated before taking the page table
> lock. The effect is noticable in page_test from aim9.
> Reported-by: Raz Ben Yehuda<raziebe@gmail.com>
> Signed-off-by: Mel Gorman<mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
--
All rights reversed
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next prev parent reply other threads:[~2011-04-15 13:23 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-15 10:12 [PATCH] mm: Check if PTE is already allocated during page fault Mel Gorman
2011-04-15 10:12 ` Mel Gorman
2011-04-15 13:23 ` Rik van Riel [this message]
2011-04-15 13:23 ` Rik van Riel
2011-04-15 14:39 ` Andrea Arcangeli
2011-04-15 14:39 ` Andrea Arcangeli
2011-04-15 15:06 ` Andrea Arcangeli
2011-04-15 15:06 ` Andrea Arcangeli
2011-04-18 7:21 ` raz ben yehuda
2011-04-18 7:21 ` raz ben yehuda
2011-04-18 10:23 ` Mel Gorman
2011-04-18 10:23 ` Mel Gorman
2011-04-21 6:59 ` Minchan Kim
2011-04-21 6:59 ` Minchan Kim
2011-04-21 11:08 ` Mel Gorman
2011-04-21 11:08 ` Mel Gorman
2011-04-21 14:26 ` Minchan Kim
2011-04-21 14:26 ` Minchan Kim
2011-04-21 16:00 ` Mel Gorman
2011-04-21 16:00 ` Mel Gorman
2011-04-21 16:14 ` Andrea Arcangeli
2011-04-21 16:14 ` Andrea Arcangeli
2011-04-22 0:54 ` Minchan Kim
2011-04-22 0:54 ` Minchan Kim
2011-04-26 13:00 ` Andrea Arcangeli
2011-04-26 13:00 ` Andrea Arcangeli
2011-04-22 1:01 ` Minchan Kim
2011-04-22 1:01 ` Minchan Kim
2011-04-27 13:50 ` Johannes Weiner
2011-04-27 13:50 ` Johannes Weiner
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