From: jonathan.derrick@intel.com (Jon Derrick)
Subject: [PATCH 2/2] NVMe: Remove unused sq_head read in completion path
Date: Tue, 8 Mar 2016 10:34:54 -0700 [thread overview]
Message-ID: <1457458494-10550-3-git-send-email-jonathan.derrick@intel.com> (raw)
In-Reply-To: <1457458494-10550-1-git-send-email-jonathan.derrick@intel.com>
Signed-off-by: Jon Derrick <jonathan.derrick at intel.com>
---
drivers/nvme/host/pci.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 74514c7..e9f18e1 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -134,7 +134,6 @@ struct nvme_queue {
u32 __iomem *q_db;
u16 q_depth;
s16 cq_vector;
- u16 sq_head;
u16 sq_tail;
u16 cq_head;
u16 qid;
@@ -719,7 +718,6 @@ static void __nvme_process_cq(struct nvme_queue *nvmeq, unsigned int *tag)
if ((status & 1) != phase)
break;
- nvmeq->sq_head = le16_to_cpu(cqe.sq_head);
if (++head == nvmeq->q_depth) {
head = 0;
phase = !phase;
--
1.8.3.1
next prev parent reply other threads:[~2016-03-08 17:34 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-08 17:34 [PATCH 0/2] Some performance fixes for fastpath Jon Derrick
2016-03-08 17:34 ` [PATCH 1/2] Block: Disable polling stats when iostats are disabled Jon Derrick
2016-03-08 17:38 ` Sagi Grimberg
2016-03-08 17:58 ` Jon Derrick
2016-03-08 17:40 ` Jens Axboe
2016-03-08 18:02 ` Jon Derrick
2016-03-08 17:34 ` Jon Derrick [this message]
2016-03-08 17:40 ` [PATCH 2/2] NVMe: Remove unused sq_head read in completion path Sagi Grimberg
2016-03-08 17:41 ` Jens Axboe
2016-03-09 7:54 ` Johannes Thumshirn
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