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authorChristoph Hellwig <hch@lst.de>2016-06-06 23:20:49 +0200
committerJens Axboe <axboe@fb.com>2016-06-12 07:29:43 -0600
commit7a5abb4b48570c3552e33ff4c72ae1e8dac3ba15 (patch)
tree00d0e86f8fad328d1e788c060c8b9687bc5f898a /drivers/nvme
parentnvme: allow for size limitations from transport drivers (diff)
downloadlinux-dev-7a5abb4b48570c3552e33ff4c72ae1e8dac3ba15.tar.xz
linux-dev-7a5abb4b48570c3552e33ff4c72ae1e8dac3ba15.zip
nvme: factor out a add nvme_is_write helper
Centralize the check if a given NVMe command reads or writes data. Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Jay Freyensee <james.p.freyensee@intel.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/core.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 7ded308fd67b..45fd6cca4a27 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -193,10 +193,9 @@ EXPORT_SYMBOL_GPL(nvme_requeue_req);
struct request *nvme_alloc_request(struct request_queue *q,
struct nvme_command *cmd, unsigned int flags)
{
- bool write = cmd->common.opcode & 1;
struct request *req;
- req = blk_mq_alloc_request(q, write, flags);
+ req = blk_mq_alloc_request(q, nvme_is_write(cmd), flags);
if (IS_ERR(req))
return req;
@@ -361,7 +360,7 @@ int __nvme_submit_user_cmd(struct request_queue *q, struct nvme_command *cmd,
void __user *meta_buffer, unsigned meta_len, u32 meta_seed,
u32 *result, unsigned timeout)
{
- bool write = cmd->common.opcode & 1;
+ bool write = nvme_is_write(cmd);
struct nvme_completion cqe;
struct nvme_ns *ns = q->queuedata;
struct gendisk *disk = ns ? ns->disk : NULL;