From: Johannes Weiner <hannes@cmpxchg.org>
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Rik van Riel <riel@redhat.com>,
Larry Woodman <lwoodman@redhat.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
akpm@linux-foundation.org,
Hugh Dickins <hugh.dickins@tiscali.co.uk>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Andrea Arcangeli <aarcange@redhat.com>
Subject: Re: [PATCH] Replace page_mapping_inuse() with page_mapped()
Date: Wed, 2 Dec 2009 12:07:32 +0100 [thread overview]
Message-ID: <20091202110732.GA8693@cmpxchg.org> (raw)
In-Reply-To: <20091202121152.5C52.A69D9226@jp.fujitsu.com>
On Wed, Dec 02, 2009 at 12:28:26PM +0900, KOSAKI Motohiro wrote:
> From 61340720e6e66b645db8d5410e89fd3b67eda907 Mon Sep 17 00:00:00 2001
> From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
> Date: Wed, 2 Dec 2009 12:05:26 +0900
> Subject: [PATCH] Replace page_mapping_inuse() with page_mapped()
>
> page reclaim logic need to distingish mapped and unmapped pages.
> However page_mapping_inuse() don't provide proper test way. it test
> the address space (i.e. file) is mmpad(). Why `page' reclaim need
> care unrelated page's mapped state? it's unrelated.
>
> Thus, This patch replace page_mapping_inuse() with page_mapped()
>
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
WARNING: multiple messages have this Message-ID (diff)
From: Johannes Weiner <hannes@cmpxchg.org>
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Rik van Riel <riel@redhat.com>,
Larry Woodman <lwoodman@redhat.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
akpm@linux-foundation.org,
Hugh Dickins <hugh.dickins@tiscali.co.uk>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Andrea Arcangeli <aarcange@redhat.com>
Subject: Re: [PATCH] Replace page_mapping_inuse() with page_mapped()
Date: Wed, 2 Dec 2009 12:07:32 +0100 [thread overview]
Message-ID: <20091202110732.GA8693@cmpxchg.org> (raw)
In-Reply-To: <20091202121152.5C52.A69D9226@jp.fujitsu.com>
On Wed, Dec 02, 2009 at 12:28:26PM +0900, KOSAKI Motohiro wrote:
> From 61340720e6e66b645db8d5410e89fd3b67eda907 Mon Sep 17 00:00:00 2001
> From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
> Date: Wed, 2 Dec 2009 12:05:26 +0900
> Subject: [PATCH] Replace page_mapping_inuse() with page_mapped()
>
> page reclaim logic need to distingish mapped and unmapped pages.
> However page_mapping_inuse() don't provide proper test way. it test
> the address space (i.e. file) is mmpad(). Why `page' reclaim need
> care unrelated page's mapped state? it's unrelated.
>
> Thus, This patch replace page_mapping_inuse() with page_mapped()
>
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
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next prev parent reply other threads:[~2009-12-02 11:12 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-25 18:37 [PATCH] vmscan: do not evict inactive pages when skipping an active list scan Rik van Riel
2009-11-25 18:37 ` Rik van Riel
2009-11-25 20:35 ` Johannes Weiner
2009-11-25 20:35 ` Johannes Weiner
2009-11-25 20:47 ` Rik van Riel
2009-11-25 20:47 ` Rik van Riel
2009-11-26 2:50 ` KOSAKI Motohiro
2009-11-26 2:50 ` KOSAKI Motohiro
2009-11-26 2:57 ` Rik van Riel
2009-11-26 2:57 ` Rik van Riel
2009-11-30 22:00 ` [RFC] high system time & lock contention running large mixed workload Larry Woodman
2009-12-01 10:04 ` Andrea Arcangeli
2009-12-01 10:04 ` Andrea Arcangeli
2009-12-01 12:31 ` KOSAKI Motohiro
2009-12-01 12:31 ` KOSAKI Motohiro
2009-12-01 12:46 ` Andrea Arcangeli
2009-12-01 12:46 ` Andrea Arcangeli
2009-12-02 2:02 ` KOSAKI Motohiro
2009-12-02 2:02 ` KOSAKI Motohiro
2009-12-02 2:04 ` Rik van Riel
2009-12-02 2:04 ` Rik van Riel
2009-12-02 2:00 ` Rik van Riel
2009-12-02 2:00 ` Rik van Riel
2009-12-01 12:23 ` KOSAKI Motohiro
2009-12-01 12:23 ` KOSAKI Motohiro
2009-12-01 16:41 ` Larry Woodman
2009-12-02 2:20 ` Rik van Riel
2009-12-02 2:20 ` Rik van Riel
2009-12-02 2:41 ` KOSAKI Motohiro
2009-12-02 2:41 ` KOSAKI Motohiro
2009-12-03 22:14 ` Larry Woodman
2009-12-04 0:29 ` Rik van Riel
2009-12-04 0:29 ` Rik van Riel
2009-12-04 21:26 ` Larry Woodman
2009-12-06 21:04 ` Rik van Riel
2009-12-06 21:04 ` Rik van Riel
2009-12-04 0:36 ` KOSAKI Motohiro
2009-12-04 0:36 ` KOSAKI Motohiro
2009-12-04 19:31 ` Larry Woodman
2009-12-04 19:31 ` Larry Woodman
2009-12-02 2:55 ` [PATCH] Clear reference bit although page isn't mapped KOSAKI Motohiro
2009-12-02 2:55 ` KOSAKI Motohiro
2009-12-02 3:07 ` Rik van Riel
2009-12-02 3:07 ` Rik van Riel
2009-12-02 3:28 ` [PATCH] Replace page_mapping_inuse() with page_mapped() KOSAKI Motohiro
2009-12-02 3:28 ` KOSAKI Motohiro
2009-12-02 4:57 ` Rik van Riel
2009-12-02 4:57 ` Rik van Riel
2009-12-02 11:07 ` Johannes Weiner [this message]
2009-12-02 11:07 ` Johannes Weiner
2009-12-02 1:55 ` [RFC] high system time & lock contention running large mixed workload Rik van Riel
2009-12-02 1:55 ` Rik van Riel
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