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NVMe: embedded iod mask cleanup 

Remove unused mask in nvme_alloc_iod

Signed-off-by: Chong Yuan <chong.yuan@memblaze.com>
Reviewed-by: Wenbo Wang  <wenbo.wang@memblaze.com>
Acked-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Chong Yuan 2015-03-27 09:21:32 +08:00 committed by Jens Axboe
parent 6df3dbc83f
commit fda631ffe5
1 changed files with 3 additions and 4 deletions
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7
drivers/block/nvme-core.c
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@ -152,6 +152,7 @@ struct nvme_cmd_info {
*/
#define NVME_INT_PAGES 2
#define NVME_INT_BYTES(dev) (NVME_INT_PAGES * (dev)->page_size)
#define NVME_INT_MASK 0x01
/*
* Will slightly overestimate the number of pages needed. This is OK
@ -257,7 +258,7 @@ static void *iod_get_private(struct nvme_iod *iod)
*/
static bool iod_should_kfree(struct nvme_iod *iod)
{
return (iod->private & 0x01) == 0;
return (iod->private & NVME_INT_MASK) == 0;
}
/* Special values must be less than 0x1000 */
@ -432,7 +433,6 @@ static struct nvme_iod *nvme_alloc_iod(struct request *rq, struct nvme_dev *dev,
{
unsigned size = !(rq->cmd_flags & REQ_DISCARD) ? blk_rq_bytes(rq) :
sizeof(struct nvme_dsm_range);
unsigned long mask = 0;
struct nvme_iod *iod;
if (rq->nr_phys_segments <= NVME_INT_PAGES &&
@ -440,9 +440,8 @@ static struct nvme_iod *nvme_alloc_iod(struct request *rq, struct nvme_dev *dev,
struct nvme_cmd_info *cmd = blk_mq_rq_to_pdu(rq);
iod = cmd->iod;
mask = 0x01;
iod_init(iod, size, rq->nr_phys_segments,
(unsigned long) rq | 0x01);
(unsigned long) rq | NVME_INT_MASK);
return iod;
}