From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: kosaki.motohiro@gmail.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
"Andrew Morton (commit_signer:15/23=65%)"
<akpm@linux-foundation.org>,
"Hugh Dickins (commit_signer:7/23=30%)" <hughd@google.com>,
"Peter Zijlstra (commit_signer:4/23=17%)"
<a.p.zijlstra@chello.nl>,
"Shaohua Li (commit_signer:3/23=13%)" <shaohua.li@intel.com>
Subject: Re: [PATCH v3] mm: simplify find_vma_prev
Date: Mon, 12 Dec 2011 18:27:11 +0900 [thread overview]
Message-ID: <20111212182711.3a072358.kamezawa.hiroyu@jp.fujitsu.com> (raw)
In-Reply-To: <20111212094930.9d4716e1.kamezawa.hiroyu@jp.fujitsu.com>
On Mon, 12 Dec 2011 09:49:30 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> On Fri, 9 Dec 2011 17:48:40 -0500
> kosaki.motohiro@gmail.com wrote:
>
> > From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
> >
> > commit 297c5eee37 (mm: make the vma list be doubly linked) added
> > vm_prev member into vm_area_struct. Therefore we can simplify
> > find_vma_prev() by using it. Also, this change help to improve
> > page fault performance because it has strong locality of reference.
> >
> > Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
>
> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
>
Hmm, your work remind me of a patch I tried in past.
Here is a refleshed one...how do you think ?
==
next prev parent reply other threads:[~2011-12-12 9:28 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-09 21:23 [PATCH v2] " kosaki.motohiro
2011-12-09 21:35 ` Joe Perches
2011-12-09 22:48 ` [PATCH v3] " kosaki.motohiro
2011-12-12 0:49 ` KAMEZAWA Hiroyuki
2011-12-12 9:27 ` KAMEZAWA Hiroyuki [this message]
2011-12-12 15:31 ` KOSAKI Motohiro
2011-12-13 4:25 ` KAMEZAWA Hiroyuki
2011-12-12 13:26 ` Michal Hocko
2011-12-12 14:49 ` KOSAKI Motohiro
2011-12-12 19:15 ` Michal Hocko
2011-12-12 19:24 ` KOSAKI Motohiro
2011-12-12 19:34 ` KOSAKI Motohiro
2011-12-09 22:49 ` [PATCH v2] " KOSAKI Motohiro
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