Commit e6d15f79 authored by Matthew Wilcox's avatar Matthew Wilcox
Browse files

NVMe: Reduce maximum queue depth by 1 



The spec says we're not allowed to completely fill the submission queue.
Solve this by reducing the number of allocatable cmdids by 1.

Signed-off-by: default avatarMatthew Wilcox <matthew.r.wilcox@intel.com>
parent d8ee9d69

drivers/block/nvme.c

+1 −1
Original line number Diff line number Diff line
@@ -156,7 +156,7 @@ static struct nvme_cmd_info *nvme_cmd_info(struct nvme_queue *nvmeq) 
static int alloc_cmdid(struct nvme_queue *nvmeq, void *ctx, int handler,

							unsigned timeout)

{

	int depth = nvmeq->q_depth;

	int depth = nvmeq->q_depth - 1;

	struct nvme_cmd_info *info = nvme_cmd_info(nvmeq);

	int cmdid;