linux-kernel - Re: [PATCH 3/3] writeback: avoid extra sync work at enqueue time

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, 5 May 2011 14:42:37 +0200
From:	Christoph Hellwig <hch@....de>
To:	Wu Fengguang <fengguang.wu@...el.com>
Cc:	Jan Kara <jack@...e.cz>, Andrew Morton <akpm@...ux-foundation.org>,
	Dave Chinner <david@...morbit.com>,
	Christoph Hellwig <hch@....de>,
	LKML <linux-kernel@...r.kernel.org>,
	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH 3/3] writeback: avoid extra sync work at enqueue time

On Thu, May 05, 2011 at 02:41:22PM +0200, Christoph Hellwig wrote:
> On Thu, May 05, 2011 at 08:27:32PM +0800, Wu Fengguang wrote:
> > -	wbc.wb_start = jiffies; /* livelock avoidance */
> > +	oldest_jif = jiffies;
> > +	wbc.older_than_this = &oldest_jif;
> 
> Can't you kill the oldest_jif variable now?

Err, -ENOCOFFEE.  You could only kill it if you implement Jan's suggestion
of not making older_than_this a pointer..
--
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/