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Re: [PATCH 16/30] db: rewrite bbmap to use xfs_buf_map

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: [PATCH 16/30] db: rewrite bbmap to use xfs_buf_map
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Thu, 31 Oct 2013 08:06:22 -0700
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <1383107481-28937-17-git-send-email-david@xxxxxxxxxxxxx>
References: <1383107481-28937-1-git-send-email-david@xxxxxxxxxxxxx> <1383107481-28937-17-git-send-email-david@xxxxxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
On Wed, Oct 30, 2013 at 03:31:07PM +1100, Dave Chinner wrote:
> From: Dave Chinner <dchinner@xxxxxxxxxx>
> 
> Use the libxfs struct xfs_buf_map for recording the extent layout of
> discontiguous buffers and convert the read/write to decode them
> directory and use read_buf/write_buf to do the extent IO. This
> brings the physical xfs_db IO code to be very close to the model
> that libxfs uses.

Looks reasonable.

Reviewed-by: Christoph Hellwig <hch@xxxxxx>

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