[PATCH 08/10] xfs: do not add buffers to the delwri queue until pushed

[Dave Chinner]

On Tue, Mar 27, 2012 at 12:44:08PM -0400, Christoph Hellwig wrote:
> Instead of adding buffers to the delwri list as soon as they are logged,
> even if they can't be written until commited because they are pinned
> defer adding them to the delwri list until xfsaild pushes them.  This
> makes the code more similar to other log items and prepares for writing
> buffers directly from xfsaild.
> 
> The complication here is that we need to fail buffers that were added
> but not logged yet in xfs_buf_item_unpin, borrowing code from
> xfs_bioerror.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>

Looks good.

Reviewed-by: Dave Chinner <dchinner at redhat.com>

-- 
Dave Chinner
david at fromorbit.com