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: Wed, 18 Feb 2015 01:07:29 +0000 From: Naoya Horiguchi <n-horiguchi@...jp.nec.com> To: Andrew Morton <akpm@...ux-foundation.org> CC: Hugh Dickins <hughd@...gle.com>, Michal Hocko <mhocko@...e.cz>, Mel Gorman <mgorman@...e.de>, Johannes Weiner <hannes@...xchg.org>, "linux-mm@...ck.org" <linux-mm@...ck.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Naoya Horiguchi <nao.horiguchi@...il.com> Subject: Re: [PATCH v2] mm, hugetlb: set PageLRU for in-use/active hugepages On Tue, Feb 17, 2015 at 04:02:49PM -0800, Andrew Morton wrote: > On Tue, 17 Feb 2015 15:57:44 -0800 Andrew Morton <akpm@...ux-foundation.org> wrote: > > > So if I'm understanding this correctly, hugepages never have PG_lru set > > and so you are overloading that bit on hugepages to indicate that the > > page is present on hstate->hugepage_activelist? > > And maybe we don't need to overload PG_lru at all? There's plenty of > free space in the compound page's *(page + 1). Right, that's not necessary. So I'll use PG_private in *(page + 1), that's unused now and no worry about conflicting with other usage. Thanks, Naoya Horiguchi-- 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