From: "min15.li" min15.li@samsung.com
[ 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@samsung.com Reviewed-by: Kanchan Joshi joshi.k@samsung.com Reviewed-by: Christoph Hellwig hch@lst.de Signed-off-by: Keith Busch kbusch@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- 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 bdf1601219fc4..dba10d182c6b6 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 bf46f122e9e1e..fcf3af2d64509 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -1072,7 +1072,7 @@ 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,