lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Mon, 09 Dec 2013 09:22:07 -0500 From: Rik van Riel <riel@...hat.com> To: Mel Gorman <mgorman@...e.de> CC: Andrew Morton <akpm@...ux-foundation.org>, Alex Thorlton <athorlton@....com>, Linux-MM <linux-mm@...ck.org>, LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 04/18] mm: numa: Do not clear PMD during PTE update scan On 12/09/2013 02:08 AM, Mel Gorman wrote: > If the PMD is flushed then a parallel fault in handle_mm_fault() will enter > the pmd_none and do_huge_pmd_anonymous_page() path where it'll attempt > to insert a huge zero page. This is wasteful so the patch avoids clearing > the PMD when setting pmd_numa. > > Cc: stable@...r.kernel.org > Signed-off-by: Mel Gorman <mgorman@...e.de> Reviewed-by: Rik van Riel <riel@...hat.com> -- All rights reversed -- 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/
Powered by blists - more mailing lists