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From: Chaitanya Kulkarni <chaitanyak@nvidia.com>
To: <kbusch@kernel.org>, <hch@lst.de>, <sagi@grimberg.me>
Cc: <linux-nvme@lists.infradead.org>, Chaitanya Kulkarni <kch@nvidia.com>
Subject: [PATCH 2/3] nvme-core: move gencounter check into nvme_cid()
Date: Fri, 10 Dec 2021 03:21:15 -0800	[thread overview]
Message-ID: <20211210112116.9299-3-chaitanyak@nvidia.com> (raw)
In-Reply-To: <20211210112116.9299-1-chaitanyak@nvidia.com>

From: Chaitanya Kulkarni <kch@nvidia.com>

Move gencounter related code to nvme_cid to keep the code under its own
interface, this also avoids any open coding and if condition when
gencounter feature is turned off.

Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
---
 drivers/nvme/host/core.c | 3 ---
 drivers/nvme/host/nvme.h | 2 ++
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 3c9f221379bd..7008cea69400 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -990,7 +990,6 @@ EXPORT_SYMBOL_GPL(nvme_cleanup_cmd);
 blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req)
 {
 	struct nvme_command *cmd = nvme_req(req)->cmd;
-	struct nvme_ctrl *ctrl = nvme_req(req)->ctrl;
 	blk_status_t ret = BLK_STS_OK;
 
 	if (!(req->rq_flags & RQF_DONTPREP))
@@ -1037,8 +1036,6 @@ blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req)
 		return BLK_STS_IOERR;
 	}
 
-	if (!(ctrl->quirks & NVME_QUIRK_SKIP_CID_GEN))
-		nvme_req(req)->genctr++;
 	cmd->common.command_id = nvme_cid(req);
 	trace_nvme_setup_cmd(req, cmd);
 	return ret;
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 98d7627cfdce..2be0191e1a1f 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -511,6 +511,8 @@ struct nvme_ctrl_ops {
 
 static inline u16 nvme_cid(struct request *rq)
 {
+	if (!(nvme_req(rq)->ctrl->quirks & NVME_QUIRK_SKIP_CID_GEN))
+		nvme_req(rq)->genctr++;
 	return nvme_cid_install_genctr(nvme_req(rq)->genctr) | rq->tag;
 }
 
-- 
2.29.0



  parent reply	other threads:[~2021-12-10 11:22 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-10 11:21 [PATCH 0/3] nvme-core: make gencounter feature tunable Chaitanya Kulkarni
2021-12-10 11:21 ` [PATCH 1/3] nvme-core: make cid gencounter configurable Chaitanya Kulkarni
2021-12-10 11:21 ` Chaitanya Kulkarni [this message]
2021-12-10 15:43   ` [PATCH 2/3] nvme-core: move gencounter check into nvme_cid() Keith Busch
2021-12-10 17:46     ` Chaitanya Kulkarni
2021-12-12  9:19       ` Sagi Grimberg
2021-12-13  7:07         ` Chaitanya Kulkarni
2021-12-10 11:21 ` [PATCH 3/3] nvme: add KConfig options for debug features Chaitanya Kulkarni
2021-12-12  9:22   ` Sagi Grimberg
2021-12-13  7:39     ` Chaitanya Kulkarni
2021-12-13  9:27       ` Sagi Grimberg
2021-12-14  7:54         ` Chaitanya Kulkarni
2021-12-14 11:03           ` Sagi Grimberg
2021-12-17  6:52             ` Chaitanya Kulkarni

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