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From: Christoph Hellwig <hch@lst.de>
To: Jan Kara <jack@suse.cz>
Cc: Wu Fengguang <fengguang.wu@intel.com>,
	Christoph Hellwig <hch@lst.de>,
	linux-fsdevel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] mm: Avoid livelocking of WB_SYNC_ALL writeback
Date: Fri, 5 Nov 2010 23:30:38 +0100	[thread overview]
Message-ID: <20101105223038.GA16666@lst.de> (raw)
In-Reply-To: <1288992383-25475-1-git-send-email-jack@suse.cz>

> +	/*
> +	 * In WB_SYNC_ALL mode, we just want to ignore nr_to_write as
> +	 * we need to write everything and livelock avoidance is implemented
> +	 * differently.
> +	 */

I think it would be useful to elaborate here on how livelock avoidance
is supposed to work.


  reply	other threads:[~2010-11-05 22:30 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-05 21:26 [PATCH] mm: Avoid livelocking of WB_SYNC_ALL writeback Jan Kara
2010-11-05 22:30 ` Christoph Hellwig [this message]
2010-11-06  2:54   ` Wu Fengguang
2010-11-06 11:45     ` Christoph Hellwig
2010-11-06  2:55   ` Wu Fengguang
2010-11-06  2:55     ` Wu Fengguang
2010-11-06 16:39     ` Wu Fengguang
2010-11-07 13:34       ` Jan Kara
2010-11-06  1:36 ` Johannes Weiner
2010-11-06  1:36   ` Johannes Weiner
2010-11-07 13:07   ` Jan Kara
2010-11-06  4:12 ` Wu Fengguang
2010-11-06  4:12   ` Wu Fengguang
2010-11-07 13:22   ` Jan Kara
2010-11-07 13:22     ` Jan Kara
2010-11-07 13:37     ` Wu Fengguang

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