linux-kernel - Re: [PATCH 3/5] hugetlb: update_and_free_page(): don't clear PG

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]

Message-ID: <20140408205126.GA2778@node.dhcp.inet.fi>
Date:	Tue, 8 Apr 2014 23:51:26 +0300
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	Luiz Capitulino <lcapitulino@...hat.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	mtosatti@...hat.com, aarcange@...hat.com, mgorman@...e.de,
	akpm@...ux-foundation.org, andi@...stfloor.org, davidlohr@...com,
	rientjes@...gle.com, isimatu.yasuaki@...fujitsu.com,
	yinghai@...nel.org, riel@...hat.com, n-horiguchi@...jp.nec.com
Subject: Re: [PATCH 3/5] hugetlb: update_and_free_page(): don't clear
 PG_reserved bit

On Tue, Apr 08, 2014 at 03:02:18PM -0400, Luiz Capitulino wrote:
> Hugepages pages never get the PG_reserved bit set, so don't clear it. But
> add a warning just in case.

I don't think WARN_ON() is needed. PG_reserved will be catched by
free_pages_check().

-- 
 Kirill A. Shutemov
--
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/