Re: [patch] block: properly handle flush/fua requests inblk_insert_cloned_request

From: Tejun Heo
Date: Tue Aug 09 2011 - 12:20:25 EST


Hello,

On Tue, Aug 09, 2011 at 06:13:34PM +0200, Tejun Heo wrote:
> AFAICS, the breakages are...
>
> * ELEVATOR_INSERT_FLUSH not used properly from insert paths.
>
> * Short circuit not kicking in for the dm requests. (the above and the
> policy patch should solve this, right?)

Ooh... right, and we also need to add empty seq detection in
blk_insert_flush() as it would be bypassing the one in
__generic_make_request(), right?

Thanks.

--
tejun
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