From: Johannes Weiner <hannes@cmpxchg.org>
To: Fengguang Wu <fengguang.wu@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Greg Thelen <gthelen@google.com>, Jan Kara <jack@suse.cz>,
Ying Han <yinghan@google.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Rik van Riel <riel@redhat.com>,
Johannes Weiner <jweiner@redhat.com>,
Linux Memory Management List <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 8/9] mm: dont set __GFP_WRITE on ramfs/sysfs writes
Date: Thu, 1 Mar 2012 11:13:54 +0100 [thread overview]
Message-ID: <20120301101354.GD1665@cmpxchg.org> (raw)
In-Reply-To: <20120228144747.440418051@intel.com>
On Tue, Feb 28, 2012 at 10:00:30PM +0800, Fengguang Wu wrote:
> Try to avoid page reclaim waits when writing to ramfs/sysfs etc.
>
> Maybe not a big deal...
This looks like a separate fix that would make sense standalone. It's
not just the waits, there is not much of a point in skipping zones
during allocation based on the dirty usage which they'll never
contribute to. Could you maybe pull this up front?
> CC: Johannes Weiner <jweiner@redhat.com>
> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
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WARNING: multiple messages have this Message-ID (diff)
From: Johannes Weiner <hannes@cmpxchg.org>
To: Fengguang Wu <fengguang.wu@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Greg Thelen <gthelen@google.com>, Jan Kara <jack@suse.cz>,
Ying Han <yinghan@google.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Rik van Riel <riel@redhat.com>,
Johannes Weiner <jweiner@redhat.com>,
Linux Memory Management List <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 8/9] mm: dont set __GFP_WRITE on ramfs/sysfs writes
Date: Thu, 1 Mar 2012 11:13:54 +0100 [thread overview]
Message-ID: <20120301101354.GD1665@cmpxchg.org> (raw)
In-Reply-To: <20120228144747.440418051@intel.com>
On Tue, Feb 28, 2012 at 10:00:30PM +0800, Fengguang Wu wrote:
> Try to avoid page reclaim waits when writing to ramfs/sysfs etc.
>
> Maybe not a big deal...
This looks like a separate fix that would make sense standalone. It's
not just the waits, there is not much of a point in skipping zones
during allocation based on the dirty usage which they'll never
contribute to. Could you maybe pull this up front?
> CC: Johannes Weiner <jweiner@redhat.com>
> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
next prev parent reply other threads:[~2012-03-01 10:14 UTC|newest]
Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-28 14:00 [PATCH 0/9] [RFC] pageout work and dirty reclaim throttling Fengguang Wu
2012-02-28 14:00 ` Fengguang Wu
2012-02-28 14:00 ` [PATCH 1/9] memcg: add page_cgroup flags for dirty page tracking Fengguang Wu
2012-02-28 14:00 ` Fengguang Wu
2012-02-29 0:50 ` KAMEZAWA Hiroyuki
2012-02-29 0:50 ` KAMEZAWA Hiroyuki
2012-03-04 1:29 ` Fengguang Wu
2012-03-04 1:29 ` Fengguang Wu
2012-02-28 14:00 ` [PATCH 2/9] memcg: add dirty page accounting infrastructure Fengguang Wu
2012-02-28 14:00 ` Fengguang Wu
2012-02-28 22:37 ` Andrew Morton
2012-02-28 22:37 ` Andrew Morton
2012-02-29 0:27 ` Fengguang Wu
2012-02-29 0:27 ` Fengguang Wu
2012-02-28 14:00 ` [PATCH 3/9] memcg: add kernel calls for memcg dirty page stats Fengguang Wu
2012-02-28 14:00 ` Fengguang Wu
2012-02-29 1:10 ` KAMEZAWA Hiroyuki
2012-02-29 1:10 ` KAMEZAWA Hiroyuki
2012-02-28 14:00 ` [PATCH 4/9] memcg: dirty page accounting support routines Fengguang Wu
2012-02-28 14:00 ` Fengguang Wu
2012-02-28 15:15 ` Fengguang Wu
2012-02-28 15:15 ` Fengguang Wu
2012-02-28 22:45 ` Andrew Morton
2012-02-28 22:45 ` Andrew Morton
2012-02-29 1:15 ` KAMEZAWA Hiroyuki
2012-02-29 1:15 ` KAMEZAWA Hiroyuki
2012-02-28 14:00 ` [PATCH 5/9] writeback: introduce the pageout work Fengguang Wu
2012-02-28 14:00 ` Fengguang Wu
2012-02-29 0:04 ` Andrew Morton
2012-02-29 0:04 ` Andrew Morton
2012-02-29 2:31 ` Fengguang Wu
2012-02-29 2:31 ` Fengguang Wu
2012-02-29 13:28 ` Fengguang Wu
2012-02-29 13:28 ` Fengguang Wu
2012-03-01 11:04 ` Jan Kara
2012-03-01 11:04 ` Jan Kara
2012-03-01 11:41 ` Fengguang Wu
2012-03-01 11:41 ` Fengguang Wu
2012-03-01 16:50 ` Jan Kara
2012-03-01 16:50 ` Jan Kara
2012-03-01 19:46 ` Andrew Morton
2012-03-01 19:46 ` Andrew Morton
2012-03-03 13:25 ` Fengguang Wu
2012-03-03 13:25 ` Fengguang Wu
2012-03-07 0:37 ` Andrew Morton
2012-03-07 0:37 ` Andrew Morton
2012-03-07 5:40 ` Fengguang Wu
2012-03-07 5:40 ` Fengguang Wu
2012-03-01 19:42 ` Andrew Morton
2012-03-01 19:42 ` Andrew Morton
2012-03-01 21:15 ` Jan Kara
2012-03-01 21:15 ` Jan Kara
2012-03-01 21:22 ` Andrew Morton
2012-03-01 21:22 ` Andrew Morton
2012-03-01 12:36 ` Fengguang Wu
2012-03-01 12:36 ` Fengguang Wu
2012-03-01 16:38 ` Jan Kara
2012-03-01 16:38 ` Jan Kara
2012-03-02 4:48 ` Fengguang Wu
2012-03-02 4:48 ` Fengguang Wu
2012-03-02 9:59 ` Jan Kara
2012-03-02 9:59 ` Jan Kara
2012-03-02 10:39 ` Fengguang Wu
2012-03-02 10:39 ` Fengguang Wu
2012-03-02 19:57 ` Andrew Morton
2012-03-02 19:57 ` Andrew Morton
2012-03-03 13:55 ` Fengguang Wu
2012-03-03 13:55 ` Fengguang Wu
2012-03-03 14:27 ` Fengguang Wu
2012-03-03 14:27 ` Fengguang Wu
2012-03-04 11:13 ` Fengguang Wu
2012-03-04 11:13 ` Fengguang Wu
2012-03-07 15:48 ` Artem Bityutskiy
2012-03-07 15:48 ` Artem Bityutskiy
2012-03-09 7:31 ` Fengguang Wu
2012-03-09 7:31 ` Fengguang Wu
2012-03-09 9:51 ` Jan Kara
2012-03-09 9:51 ` Jan Kara
2012-03-09 10:24 ` Artem Bityutskiy
2012-03-09 10:24 ` Artem Bityutskiy
2012-03-09 16:10 ` Artem Bityutskiy
2012-03-09 16:10 ` Artem Bityutskiy
2012-03-09 21:11 ` Jan Kara
2012-03-09 21:11 ` Jan Kara
2012-03-12 12:36 ` Artem Bityutskiy
2012-03-12 12:36 ` Artem Bityutskiy
2012-03-12 14:02 ` Jan Kara
2012-03-12 14:02 ` Jan Kara
2012-03-12 14:21 ` Artem Bityutskiy
2012-03-12 14:21 ` Artem Bityutskiy
2012-03-09 10:15 ` Jan Kara
2012-03-09 10:15 ` Jan Kara
2012-03-09 15:10 ` Fengguang Wu
2012-03-09 15:10 ` Fengguang Wu
2012-02-29 13:51 ` [PATCH v2 " Fengguang Wu
2012-02-29 13:51 ` Fengguang Wu
2012-03-01 13:35 ` Fengguang Wu
2012-03-01 13:35 ` Fengguang Wu
2012-03-02 6:22 ` [PATCH v3 " Fengguang Wu
2012-03-02 6:22 ` Fengguang Wu
2012-02-28 14:00 ` [PATCH 6/9] vmscan: dirty reclaim throttling Fengguang Wu
2012-02-28 14:00 ` Fengguang Wu
2012-02-28 14:00 ` [PATCH 7/9] mm: pass __GFP_WRITE to memcg charge and reclaim routines Fengguang Wu
2012-02-28 14:00 ` Fengguang Wu
2012-02-28 14:00 ` [PATCH 8/9] mm: dont set __GFP_WRITE on ramfs/sysfs writes Fengguang Wu
2012-02-28 14:00 ` Fengguang Wu
2012-03-01 10:13 ` Johannes Weiner [this message]
2012-03-01 10:13 ` Johannes Weiner
2012-03-01 10:30 ` Fengguang Wu
2012-03-01 10:30 ` Fengguang Wu
2012-02-28 14:00 ` [PATCH 9/9] mm: debug vmscan waits Fengguang Wu
2012-02-28 14:00 ` Fengguang Wu
2012-03-02 6:59 ` [RFC PATCH] mm: don't treat anonymous pages as dirtyable pages Fengguang Wu
2012-03-02 6:59 ` Fengguang Wu
2012-03-02 7:18 ` Fengguang Wu
2012-03-02 7:18 ` Fengguang Wu
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