From: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
To: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: linux-mm@kvack.org, m.szyprowski@samsung.com, mina86@mina86.com,
minchan@kernel.org, mgorman@suse.de, hughd@google.com,
kyungmin.park@samsung.com
Subject: Re: [PATCH v4 1/4] mm: fix tracing in free_pcppages_bulk()
Date: Wed, 19 Sep 2012 14:07:29 -0400 [thread overview]
Message-ID: <CAHGf_=rhVpJ7nAT_bd47th5mQno6OqP63G2fLM-XtCaBr+Mv-g@mail.gmail.com> (raw)
In-Reply-To: <1347632974-20465-2-git-send-email-b.zolnierkie@samsung.com>
On Fri, Sep 14, 2012 at 10:29 AM, Bartlomiej Zolnierkiewicz
<b.zolnierkie@samsung.com> wrote:
> page->private gets re-used in __free_one_page() to store page order
> (so trace_mm_page_pcpu_drain() may print order instead of migratetype)
> thus migratetype value must be cached locally.
>
> Fixes regression introduced in a701623 ("mm: fix migratetype bug
> which slowed swapping").
>
> Cc: Marek Szyprowski <m.szyprowski@samsung.com>
> Cc: Michal Nazarewicz <mina86@mina86.com>
> Acked-by: Minchan Kim <minchan@kernel.org>
> Acked-by: Mel Gorman <mgorman@suse.de>
> Cc: Hugh Dickins <hughd@google.com>
> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
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next prev parent reply other threads:[~2012-09-19 18:07 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-14 14:29 [PATCH v4 0/4] cma: fix watermark checking Bartlomiej Zolnierkiewicz
2012-09-14 14:29 ` [PATCH v4 1/4] mm: fix tracing in free_pcppages_bulk() Bartlomiej Zolnierkiewicz
2012-09-19 7:07 ` Yasuaki Ishimatsu
2012-09-19 7:32 ` Minchan Kim
2012-09-19 7:45 ` Yasuaki Ishimatsu
2012-09-19 8:03 ` Minchan Kim
2012-09-19 18:07 ` KOSAKI Motohiro [this message]
2012-09-19 19:28 ` Andrew Morton
2012-09-14 14:29 ` [PATCH v4 2/4] cma: fix counting of isolated pages Bartlomiej Zolnierkiewicz
2012-09-14 14:29 ` [PATCH v4 3/4] cma: count free CMA pages Bartlomiej Zolnierkiewicz
2012-09-14 14:29 ` [PATCH v4 4/4] cma: fix watermark checking Bartlomiej Zolnierkiewicz
2012-09-19 19:51 ` Andrew Morton
2012-09-24 9:30 ` Bartlomiej Zolnierkiewicz
2012-09-24 21:30 ` Andrew Morton
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