linux-kernel - Re: [RFC 2/2] cma: support MIGRATE

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: <xa1twr0znfgr.fsf@mina86.com>
Date:	Thu, 16 Aug 2012 15:17:40 +0200
From:	Michal Nazarewicz <mina86@...a86.com>
To:	Minchan Kim <minchan@...nel.org>
Cc:	Marek Szyprowski <m.szyprowski@...sung.com>,
	Mel Gorman <mgorman@...e.de>, Rik van Riel <riel@...hat.com>,
	Kamezawa Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [RFC 2/2] cma: support MIGRATE_DISCARD

> On Tue, Aug 14, 2012 at 04:19:55PM +0200, Michal Nazarewicz wrote:
>> Since CMA is the only user of MIGRATE_DISCARD it may be worth it to
>> guard it inside an #ifdef, eg:

Minchan Kim <minchan@...nel.org> writes:
> In summary, I want to open it for potential usecases in future if anyone
> doesn't oppose strongly.

Fair enough.

>>>  	if (!trylock_page(page)) {
>>> -		if (!force || mode == MIGRATE_ASYNC)
>>> +		if (!force || mode & MIGRATE_ASYNC)

> It's not wrong technically but for readability, NP.

Yep, that was my point, thanks. :)

-- 
Best regards,                                         _     _
.o. | Liege of Serenely Enlightened Majesty of      o' \,=./ `o
..o | Computer Science,  Michał “mina86” Nazarewicz    (o o)
ooo +----<email/xmpp: mpn@...gle.com>--------------ooO--(_)--Ooo--

Content of type "application/pgp-signature" skipped