[PATCH 03/60] xfs: plug directory buffer readahead

[Mark Tinguely]

On 06/18/13 23:50, Dave Chinner wrote:
> From: Dave Chinner<dchinner at redhat.com>
>
> Similar to bulkstat inode chunk readahead, we need to plug directory
> data buffer readahead during getdents to ensure that we can merge
> adjacent readahead requests and sort out of order requests optimally
> before they are dispatched. This improves the readahead efficiency
> and reduces the IO load it generates as the IO patterns are
> significantly better for both contiguous and fragmented directories.
>
> Signed-off-by: Dave Chinner<dchinner at redhat.com>
> ---

Looks good.

Reviewed-by: Mark Tinguely <tinguely at sgi.com>