From: min15.li <min15.li@xxxxxxxxxxx>
[ Upstream commit 31a5978243d24d77be4bacca56c78a0fbc43b00d ]
In the function nvme_passthru_end(), only the value of the command
opcode is checked, without checking the command type (IO command or
Admin command). When we send a Dataset Management command (The opcode
of the Dataset Management command is the same as the Set Feature
command), kernel thinks it is a set feature command, then sets the
controller's keep alive interval, and calls nvme_keep_alive_work().
Signed-off-by: min15.li <min15.li@xxxxxxxxxxx>
Reviewed-by: Kanchan Joshi <joshi.k@xxxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Keith Busch <kbusch@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/nvme/host/core.c | 4 +++-
drivers/nvme/host/ioctl.c | 2 +-
drivers/nvme/host/nvme.h | 2 +-
drivers/nvme/target/passthru.c | 2 +-
4 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index c015393beeee8..f12109230dc8d 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1115,7 +1115,7 @@ u32 nvme_passthru_start(struct nvme_ctrl *ctrl, struct nvme_ns *ns, u8 opcode)
}
EXPORT_SYMBOL_NS_GPL(nvme_passthru_start, NVME_TARGET_PASSTHRU);
-void nvme_passthru_end(struct nvme_ctrl *ctrl, u32 effects,
+void nvme_passthru_end(struct nvme_ctrl *ctrl, struct nvme_ns *ns, u32 effects,
struct nvme_command *cmd, int status)
{
if (effects & NVME_CMD_EFFECTS_CSE_MASK) {
@@ -1132,6 +1132,8 @@ void nvme_passthru_end(struct nvme_ctrl *ctrl, u32 effects,
nvme_queue_scan(ctrl);
flush_work(&ctrl->scan_work);
}
+ if (ns)
+ return;
switch (cmd->common.opcode) {
case nvme_admin_set_features:
diff --git a/drivers/nvme/host/ioctl.c b/drivers/nvme/host/ioctl.c
index d24ea2e051564..0264ec74a4361 100644
--- a/drivers/nvme/host/ioctl.c
+++ b/drivers/nvme/host/ioctl.c
@@ -254,7 +254,7 @@ static int nvme_submit_user_cmd(struct request_queue *q,
blk_mq_free_request(req);
if (effects)
- nvme_passthru_end(ctrl, effects, cmd, ret);
+ nvme_passthru_end(ctrl, ns, effects, cmd, ret);
return ret;
}
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index a2d4f59e0535a..2dd52739236e1 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -1077,7 +1077,7 @@ u32 nvme_command_effects(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
u8 opcode);
u32 nvme_passthru_start(struct nvme_ctrl *ctrl, struct nvme_ns *ns, u8 opcode);
int nvme_execute_rq(struct request *rq, bool at_head);
-void nvme_passthru_end(struct nvme_ctrl *ctrl, u32 effects,
+void nvme_passthru_end(struct nvme_ctrl *ctrl, struct nvme_ns *ns, u32 effects,
struct nvme_command *cmd, int status);
struct nvme_ctrl *nvme_ctrl_from_file(struct file *file);
struct nvme_ns *nvme_find_get_ns(struct nvme_ctrl *ctrl, unsigned nsid);
diff --git a/drivers/nvme/target/passthru.c b/drivers/nvme/target/passthru.c
index 511c980d538df..71a9c1cc57f59 100644
--- a/drivers/nvme/target/passthru.c
+++ b/drivers/nvme/target/passthru.c
@@ -243,7 +243,7 @@ static void nvmet_passthru_execute_cmd_work(struct work_struct *w)
blk_mq_free_request(rq);
if (effects)
- nvme_passthru_end(ctrl, effects, req->cmd, status);
+ nvme_passthru_end(ctrl, ns, effects, req->cmd, status);
}
static enum rq_end_io_ret nvmet_passthru_req_done(struct request *rq,
--
2.39.2
