On 15/04/16 21:16, mchristi@redhat.com wrote:

From: Mike Christie <redacted>

The last patch added a REQ_OP_FLUSH for request_fn drivers
and the next patch renames REQ_FLUSH to REQ_PREFLUSH which
will be used by file systems and make_request_fn drivers so
they can send a write/flush combo.

This patch drops xen's use of REQ_FLUSH to track if it supports
REQ_OP_FLUSH requests, so REQ_FLUSH can be deleted.

v7:
- Fix feature_flush/fua use.

v6:
- Dropped parts of patch handled by Jens's QUEUE_FLAG_WC/FUA
patches and modified patch to check feature_flush/fua bits.

Signed-off-by: Mike Christie <redacted>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Cc: Juergen Gross <redacted>

Acked-by: Juergen Gross <jgross@suse.com>


Juergen