linux-kernel - Re: [PATCH 5/9] writeback: support

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Date:	Thu, 6 Aug 2009 17:33:26 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	chris.mason@...cle.com, david@...morbit.com, hch@...radead.org,
	akpm@...ux-foundation.org, jack@...e.cz,
	yanmin_zhang@...ux.intel.com, richard@....demon.co.uk,
	damien.wyart@...e.fr, fweisbec@...il.com, Alan.Brunelle@...com
Subject: Re: [PATCH 5/9] writeback: support > 1 flusher thread per bdi

On Thu, Jul 30, 2009 at 11:24:00PM +0200, Jens Axboe wrote:
> Build on the bdi_writeback support by allowing registration of
> more than 1 flusher thread. File systems can call bdi_add_flusher_task(bdi)
> to add more flusher threads to the device. If they do so, they must also
> provide a super_operations function to return the suitable bdi_writeback
> struct from any given inode.

Please don't add a inode_get_wb method until we actually have users for it.

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