linux-kernel - Re: [PATCH] mm: compaction: count compaction events only if compaction is enabled

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] [day] [month] [year] [list]

Date:	Thu, 20 Dec 2012 10:52:14 +0000
From:	Mel Gorman <mgorman@...e.de>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Rik van Riel <riel@...hat.com>,
	Minchan Kim <minchan@...nel.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH] mm: compaction: count compaction events only if
 compaction is enabled

On Thu, Dec 20, 2012 at 11:21:34AM +0100, Jiri Kosina wrote:
> On configs which have CONFIG_CMA but no CONFIG_COMPACTION, 
> isolate_migratepages_range() and isolate_freepages_block() must not 
> account for COMPACTFREE_SCANNED and COMPACTISOLATED events (those 
> constants are even undefined in such case, causing a build error).
> 
> Signed-off-by: Jiri Kosina <jkosina@...e.cz>

Minchan has a similar patch in the works that defines count_compact_events()
similar to count_vm_numa_events(). It just needs a small correction. The
fixed version would avoid having an #ifdef in the middle of the function
which is cosmetically a bit nicer.

-- 
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/