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Date: Sat, 4 Jun 2011 16:25:12 +0900 From: Minchan Kim <minchan.kim@...il.com> To: Andrea Arcangeli <aarcange@...hat.com> Cc: Mel Gorman <mgorman@...e.de>, akpm@...ux-foundation.org, Ury Stankevich <urykhy@...il.com>, KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>, linux-kernel@...r.kernel.org, linux-mm@...ck.org, stable@...nel.org Subject: Re: [PATCH] mm: compaction: Abort compaction if too many pages are isolated and caller is asynchronous On Fri, Jun 03, 2011 at 05:45:54PM +0200, Andrea Arcangeli wrote: > On Fri, Jun 03, 2011 at 03:49:41PM +0100, Mel Gorman wrote: > > Right idea of the wrong zone being accounted for but wrong place. I > > think the following patch should fix the problem; > > Looks good thanks. > > I also found this bug during my debugging that made NR_SHMEM underflow. > > === > Subject: migrate: don't account swapcache as shmem > > From: Andrea Arcangeli <aarcange@...hat.com> > > swapcache will reach the below code path in migrate_page_move_mapping, > and swapcache is accounted as NR_FILE_PAGES but it's not accounted as > NR_SHMEM. > > Signed-off-by: Andrea Arcangeli <aarcange@...hat.com> Reviewed-by: Minchan Kim <minchan.kim@...il.com> Nice catch! -- Kind regards Minchan Kim -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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