linux-kernel - Re: [PATCH 04/45] writeback: remove unused nonblocking and congestion checks

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Date:	Sat, 10 Oct 2009 21:47:38 +0800
From:	Wu Fengguang <fengguang.wu@...el.com>
To:	Jan Kara <jack@...e.cz>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Theodore Tso <tytso@....edu>,
	Christoph Hellwig <hch@...radead.org>,
	Dave Chinner <david@...morbit.com>,
	Chris Mason <chris.mason@...cle.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"Li, Shaohua" <shaohua.li@...el.com>,
	Myklebust Trond <Trond.Myklebust@...app.com>,
	"jens.axboe@...cle.com" <jens.axboe@...cle.com>,
	Nick Piggin <npiggin@...e.de>,
	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 04/45] writeback: remove unused nonblocking and
	congestion checks

On Fri, Oct 09, 2009 at 11:26:29PM +0800, Jan Kara wrote:
> On Wed 07-10-09 15:38:22, Wu Fengguang wrote:
> > - no one is calling wb_writeback and write_cache_pages with
> >   wbc.nonblocking=1 any more
> > - lumpy pageout will want to do nonblocking writeback without the
> >   congestion wait
> > 
> > So remove the congestion checks as suggested by Chris.
>   Looks good. Since encountered_congestion isn't used, you can delete it as
> well... BTW, you might need to split this patch to per-fs chunks for the
> sake of merging.

OK, good suggestions to follow :)

Thanks,
Fengguang
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