Re: [PATCH] mm: hugetlbfs: Skip shared VMAs when unmapping private pages to satisfy a fault

From	Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH] mm: hugetlbfs: Skip shared VMAs when unmapping private pages to satisfy a fault
Date	2015-09-24 06:30 +0200
Message-ID	<qc6kq-DF-9@gated-at.bofh.it> (permalink)
References	<qbv1v-5qC-7@gated-at.bofh.it> <qbxZq-1c3-59@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw
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--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

[PATCH] mm: hugetlbfs: Skip shared VMAs when unmapping private pages  to satisfy a fault Mel Gorman <mgorman@techsingularity.net> - 2015-09-22 14:40 +0200
  Re: [PATCH] mm: hugetlbfs: Skip shared VMAs when unmapping private  pages to satisfy a fault Mel Gorman <mgorman@techsingularity.net> - 2015-09-22 17:50 +0200
    Re: [PATCH] mm: hugetlbfs: Skip shared VMAs when unmapping private  pages to satisfy a fault Michal Hocko <mhocko@kernel.org> - 2015-09-22 18:10 +0200
    Re: [PATCH] mm: hugetlbfs: Skip shared VMAs when unmapping private  pages to satisfy a fault Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> - 2015-09-24 06:30 +0200

csiph-web