From: Hugh Dickins <hugh@veritas.com>
To: Christoph Lameter <clameter@engr.sgi.com>
Cc: Nick Piggin <npiggin@suse.de>, Andrew Morton <akpm@osdl.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: Race in new page migration code?
Date: Mon, 16 Jan 2006 16:06:21 +0000 (GMT) [thread overview]
Message-ID: <Pine.LNX.4.61.0601161555130.9134@goblin.wat.veritas.com> (raw)
In-Reply-To: <Pine.LNX.4.62.0601160739360.19188@schroedinger.engr.sgi.com>
On Mon, 16 Jan 2006, Christoph Lameter wrote:
> On Mon, 16 Jan 2006, Hugh Dickins wrote:
>
> > Or have you found the zero page mapcount distorting get_stats stats?
> > If that's an issue, then better add a commented test for it there.
>
> It also applies to the policy compliance check.
Good point, I missed that: you've inadventently changed the behaviour
of sys_mbind when it encounters a zero page from a disallowed node.
Another reason to remove your PageReserved test.
Hugh
WARNING: multiple messages have this Message-ID (diff)
From: Hugh Dickins <hugh@veritas.com>
To: Christoph Lameter <clameter@engr.sgi.com>
Cc: Nick Piggin <npiggin@suse.de>, Andrew Morton <akpm@osdl.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: Race in new page migration code?
Date: Mon, 16 Jan 2006 16:06:21 +0000 (GMT) [thread overview]
Message-ID: <Pine.LNX.4.61.0601161555130.9134@goblin.wat.veritas.com> (raw)
In-Reply-To: <Pine.LNX.4.62.0601160739360.19188@schroedinger.engr.sgi.com>
On Mon, 16 Jan 2006, Christoph Lameter wrote:
> On Mon, 16 Jan 2006, Hugh Dickins wrote:
>
> > Or have you found the zero page mapcount distorting get_stats stats?
> > If that's an issue, then better add a commented test for it there.
>
> It also applies to the policy compliance check.
Good point, I missed that: you've inadventently changed the behaviour
of sys_mbind when it encounters a zero page from a disallowed node.
Another reason to remove your PageReserved test.
Hugh
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next prev parent reply other threads:[~2006-01-16 16:05 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-14 15:55 Race in new page migration code? Nick Piggin
2006-01-14 15:55 ` Nick Piggin
2006-01-14 18:01 ` Christoph Lameter
2006-01-14 18:01 ` Christoph Lameter
2006-01-14 18:19 ` Nick Piggin
2006-01-14 18:19 ` Nick Piggin
2006-01-14 18:58 ` Christoph Lameter
2006-01-14 18:58 ` Christoph Lameter
2006-01-15 5:28 ` Nick Piggin
2006-01-15 5:28 ` Nick Piggin
2006-01-16 6:54 ` Christoph Lameter
2006-01-16 6:54 ` Christoph Lameter
2006-01-16 7:44 ` Nick Piggin
2006-01-16 7:44 ` Nick Piggin
2006-01-17 8:29 ` Magnus Damm
2006-01-17 8:29 ` Magnus Damm
2006-01-17 9:01 ` Nick Piggin
2006-01-17 9:01 ` Nick Piggin
2006-01-17 9:22 ` Magnus Damm
2006-01-17 9:22 ` Magnus Damm
2006-01-15 6:58 ` Nick Piggin
2006-01-15 6:58 ` Nick Piggin
2006-01-15 10:58 ` Hugh Dickins
2006-01-15 10:58 ` Hugh Dickins
2006-01-16 6:51 ` Christoph Lameter
2006-01-16 6:51 ` Christoph Lameter
2006-01-16 12:32 ` Hugh Dickins
2006-01-16 12:32 ` Hugh Dickins
2006-01-16 15:47 ` Christoph Lameter
2006-01-16 15:47 ` Christoph Lameter
2006-01-16 16:06 ` Hugh Dickins [this message]
2006-01-16 16:06 ` Hugh Dickins
2006-01-16 16:10 ` Christoph Lameter
2006-01-16 16:10 ` Christoph Lameter
2006-01-16 16:28 ` Hugh Dickins
2006-01-16 16:28 ` Hugh Dickins
2006-01-16 16:51 ` Andi Kleen
2006-01-16 16:51 ` Andi Kleen
2006-01-16 16:56 ` Nick Piggin
2006-01-16 16:56 ` Nick Piggin
2006-01-17 5:06 ` Christoph Lameter
2006-01-17 5:06 ` Christoph Lameter
2006-01-17 11:16 ` Nick Piggin
2006-01-17 11:16 ` Nick Piggin
2006-01-17 17:29 ` Christoph Lameter
2006-01-17 17:29 ` Christoph Lameter
2006-01-17 18:46 ` Lee Schermerhorn
2006-01-17 18:46 ` Lee Schermerhorn
2006-01-17 18:48 ` Christoph Lameter
2006-01-17 18:48 ` Christoph Lameter
2006-01-17 19:01 ` Hugh Dickins
2006-01-17 19:01 ` Hugh Dickins
2006-01-17 20:15 ` Christoph Lameter
2006-01-17 20:15 ` Christoph Lameter
2006-01-17 20:49 ` Hugh Dickins
2006-01-17 20:49 ` Hugh Dickins
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