From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx205.postini.com [74.125.245.205]) by kanga.kvack.org (Postfix) with SMTP id 9C2C56B0196 for ; Thu, 13 Sep 2012 21:48:18 -0400 (EDT) Date: Fri, 14 Sep 2012 10:50:29 +0900 From: Minchan Kim Subject: Re: [PATCH v3 1/5] mm: fix tracing in free_pcppages_bulk() Message-ID: <20120914015029.GF5085@bbox> References: <1346765185-30977-1-git-send-email-b.zolnierkie@samsung.com> <1346765185-30977-2-git-send-email-b.zolnierkie@samsung.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1346765185-30977-2-git-send-email-b.zolnierkie@samsung.com> Sender: owner-linux-mm@kvack.org List-ID: To: Bartlomiej Zolnierkiewicz Cc: linux-mm@kvack.org, m.szyprowski@samsung.com, mina86@mina86.com, mgorman@suse.de, hughd@google.com, kyungmin.park@samsung.com On Tue, Sep 04, 2012 at 03:26:21PM +0200, Bartlomiej Zolnierkiewicz wrote: > page->private gets re-used in __free_one_page() to store page order Please write down result of end-user by this bug. "So trace_mm_page_pcpu_drain may print order instead of migratetype" > so migratetype value must be cached locally. > > Fixes regression introduced in a701623 ("mm: fix migratetype bug > which slowed swapping"). > > Cc: Marek Szyprowski > Cc: Michal Nazarewicz > Cc: Minchan Kim > Cc: Mel Gorman > Cc: Hugh Dickins > Signed-off-by: Bartlomiej Zolnierkiewicz > Signed-off-by: Kyungmin Park Acked-by: Minchan Kim -- Kind regards, Minchan Kim -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org