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authorChong Yuan <chong.yuan@memblaze.com>2015-03-27 09:21:32 +0800
committerJens Axboe <axboe@fb.com>2015-03-31 10:36:41 -0600
commitfda631ffe5422424579e1649e04cc468d0215b85 (patch)
tree697fe528b9dc7b31c6a1350c18042c74cb59338f /drivers/block
parentNVMe: Freeze admin queue on device failure (diff)
downloadlinux-dev-fda631ffe5422424579e1649e04cc468d0215b85.tar.xz
linux-dev-fda631ffe5422424579e1649e04cc468d0215b85.zip
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>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/nvme-core.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index ee83554c28ba..7ed618125c27 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -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;
}