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Message-ID: <20140814091614.4a0d5178@mschwide> Date: Thu, 14 Aug 2014 09:16:14 +0200 From: Martin Schwidefsky <schwidefsky@...ibm.com> To: Minchan Kim <minchan@...nel.org> Cc: Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org, linux-kernel@...r.kernel.org, Michael Kerrisk <mtk.manpages@...il.com>, Linux API <linux-api@...r.kernel.org>, Hugh Dickins <hughd@...gle.com>, Johannes Weiner <hannes@...xchg.org>, Rik van Riel <riel@...hat.com>, KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>, Mel Gorman <mgorman@...e.de>, Jason Evans <je@...com>, Zhang Yanfei <zhangyanfei@...fujitsu.com>, "Kirill A. Shutemov" <kirill@...temov.name>, Heiko Carstens <heiko.carstens@...ibm.com>, Dominik Dingel <dingel@...ux.vnet.ibm.com>, Christian Borntraeger <borntraeger@...ibm.com>, linux-s390@...r.kernel.org, Gerald Schaefer <gerald.schaefer@...ibm.com> Subject: Re: [PATCH v14 5/8] s390: add pmd_[dirty|mkclean] for THP On Thu, 14 Aug 2014 10:53:29 +0900 Minchan Kim <minchan@...nel.org> wrote: > MADV_FREE needs pmd_dirty and pmd_mkclean for detecting recent > overwrite of the contents since MADV_FREE syscall is called for > THP page but for s390 pmds only referenced bit is available > because there is no free bit left in the pmd entry for the > software dirty bit so this patch adds dumb pmd_dirty which > returns always true by suggesting by Martin. > > They finally find a solution in future. > http://marc.info/?l=linux-api&m=140440328820808&w=2 The solution is already there, see git commit 152125b7a882df36. You can drop this patch. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin. -- 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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