linux-kernel - Re: [PATCH 1/5] pagewalk: only split huge pages when necessary

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 10 Feb 2011 13:34:00 +0000
From:	Mel Gorman <mel@....ul.ie>
To:	Andrea Arcangeli <aarcange@...hat.com>
Cc:	Dave Hansen <dave@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Michael J Wolf <mjwolf@...ibm.com>
Subject: Re: [PATCH 1/5] pagewalk: only split huge pages when necessary

On Thu, Feb 10, 2011 at 02:19:28PM +0100, Andrea Arcangeli wrote:
> On Thu, Feb 10, 2011 at 11:11:25AM +0000, Mel Gorman wrote:
> > Before we goto this retry, there is at a cond_resched(). Just to confirm,
> > we are depending on mmap_sem to prevent khugepaged promoting this back to
> > a hugepage, right? I don't see a problem with that but I want to be
> > sure.
> 
> Correct, and we depend on that everywhere as wait_split_huge_page has
> to run without holding spinlocks.
> 

In that case;

Acked-by: Mel Gorman <mel@....ul.ie>

Thanks.

-- 
Mel Gorman
SUSE Labs
--
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/