Re: [PATCH v5 03/12] block: Introduce request_queue.initialize_rq_fn()

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On 06/20/2017 08:15 PM, Bart Van Assche wrote:
> From: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
> 
> Several block drivers need to initialize the driver-private request
> data after having called blk_get_request() and before .prep_rq_fn()
> is called, e.g. when submitting a REQ_OP_SCSI_* request. Avoid that
> that initialization code has to be repeated after every
> blk_get_request() call by adding new callback functions to struct
> request_queue and to struct blk_mq_ops.
> 
> Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
> Cc: Christoph Hellwig <hch@xxxxxx>
> Cc: Hannes Reinecke <hare@xxxxxxxx>
> Cc: Omar Sandoval <osandov@xxxxxx>
> ---
>  block/blk-core.c       | 17 +++++++++++++----
>  include/linux/blk-mq.h |  2 ++
>  include/linux/blkdev.h |  4 ++++
>  3 files changed, 19 insertions(+), 4 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		   Teamlead Storage & Networking
hare@xxxxxxx			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)



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