On 06/05/2016 09:31 PM, mchristi@redhat.com wrote:

From: Mike Christie <redacted>

We currently set REQ_WRITE/WRITE for all non READ IOs
like discard, flush, writesame, etc. In the next patches where we
no longer set up the op as a bitmap, we will not be able to
detect a operation direction like writesame by testing if REQ_WRITE is
set.

This patch converts the drivers and cgroup to use the
op_is_write helper. This should just cover the simple
cases. I did dm, md and bcache in their own patches
because they were more involved.

Signed-off-by: Mike Christie <redacted>
---

Reviewed-by: Hannes Reinecke <hare@suse.com>

Cheers,

Hannes
-- 
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