From: Hugh Dickins <hugh.dickins@tiscali.co.uk>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Izik Eidus <ieidus@redhat.com>,
Andrea Arcangeli <aarcange@redhat.com>,
Christoph Lameter <cl@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 5/6] mm: stop ptlock enlarging struct page
Date: Tue, 10 Nov 2009 22:29:28 +0000 (GMT) [thread overview]
Message-ID: <Pine.LNX.4.64.0911102227080.7826@sister.anvils> (raw)
In-Reply-To: <1257891277.4108.498.camel@laptop>
On Tue, 10 Nov 2009, Peter Zijlstra wrote:
>
> fwiw, in -rt we carry this, because there spinlock_t is huge even
> without lockdep.
Thanks, I may want to consider that; but I'm not keen on darting
off to another cacheline even for the non-debug spinlock case.
Hugh
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next prev parent reply other threads:[~2009-11-10 22:29 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-10 21:50 [PATCH 0/6] mm: prepare for ksm swapping Hugh Dickins
2009-11-10 21:51 ` [PATCH 1/6] mm: define PAGE_MAPPING_FLAGS Hugh Dickins
2009-11-19 0:25 ` Rik van Riel
2009-11-10 21:55 ` [PATCH 2/6] mm: mlocking in try_to_unmap_one Hugh Dickins
2009-11-11 7:56 ` KOSAKI Motohiro
2009-11-11 11:36 ` Hugh Dickins
2009-11-13 8:16 ` KOSAKI Motohiro
2009-11-13 8:26 ` KOSAKI Motohiro
2009-11-13 11:50 ` Andrea Arcangeli
2009-11-13 18:00 ` KOSAKI Motohiro
2009-11-15 22:37 ` Hugh Dickins
2009-11-17 2:00 ` KOSAKI Motohiro
2009-11-18 16:32 ` Hugh Dickins
2009-11-13 6:30 ` KOSAKI Motohiro
2009-11-15 22:16 ` Hugh Dickins
2009-11-16 23:34 ` KOSAKI Motohiro
2009-11-10 21:59 ` [PATCH 3/6] mm: CONFIG_MMU for PG_mlocked Hugh Dickins
2009-11-11 1:22 ` KOSAKI Motohiro
2009-11-11 10:48 ` Hugh Dickins
2009-11-11 12:38 ` Andi Kleen
2009-11-10 22:00 ` [PATCH 4/6] mm: pass address down to rmap ones Hugh Dickins
2009-11-10 22:02 ` [PATCH 5/6] mm: stop ptlock enlarging struct page Hugh Dickins
2009-11-10 22:09 ` Peter Zijlstra
2009-11-10 22:24 ` Hugh Dickins
2009-11-10 22:14 ` Peter Zijlstra
2009-11-10 22:29 ` Hugh Dickins [this message]
2009-11-10 22:06 ` [PATCH 6/6] mm: sigbus instead of abusing oom Hugh Dickins
2009-11-11 2:37 ` KAMEZAWA Hiroyuki
2009-11-11 2:42 ` KOSAKI Motohiro
2009-11-11 4:35 ` Wu Fengguang
2009-11-11 5:51 ` Minchan Kim
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