On 05/24/2017 02:33 AM, Bart Van Assche wrote:

Since commit e9c787e65c0c ("scsi: allocate scsi_cmnd structures as
part of struct request") struct request and struct scsi_cmnd are
adjacent. This means that there is now an alternative to reading
req->special to convert a pointer to a prepared request into a
SCSI command pointer, namely by using blk_mq_rq_to_pdu(). Make
this change where appropriate. Although this patch does not
change any functionality, it slightly improves performance and
slightly improves readability.

Signed-off-by: Bart Van Assche <redacted>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <redacted>
---
 drivers/scsi/scsi_error.c |  2 +-
 drivers/scsi/scsi_lib.c   | 18 +++++++++---------
 include/scsi/scsi_tcq.h   |  2 +-
 3 files changed, 11 insertions(+), 11 deletions(-)

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

Cheers,

Hannes
-- 
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