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SubjectRe: [PATCH v9 03/12] nvmet: add return value to nvmet_add_async_event()
On Wed, Oct 09, 2019 at 01:25:20PM -0600, Logan Gunthorpe wrote:
> From: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
>
> Change the return value for nvmet_add_async_event().
>
> This change is needed for the target passthru code which will
> submit async events on namespaces changes and can fail the command
> should adding the event fail (on -ENOMEM).
>
> Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
> [logang@deltatee.com:
> * fleshed out commit message
> * change to using int as a return type instead of bool
> ]
> Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
> Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
> ---

Looks fine, but let's remove the version comments out of commit log if
we're applying this one.

Reviewed-by: Keith Busch <kbusch@kernel.org>

> drivers/nvme/target/core.c | 6 ++++--
> drivers/nvme/target/nvmet.h | 2 +-
> 2 files changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
> index 3a67e244e568..d6dcb86d8be7 100644
> --- a/drivers/nvme/target/core.c
> +++ b/drivers/nvme/target/core.c
> @@ -173,14 +173,14 @@ static void nvmet_async_event_work(struct work_struct *work)
> }
> }
>
> -void nvmet_add_async_event(struct nvmet_ctrl *ctrl, u8 event_type,
> +int nvmet_add_async_event(struct nvmet_ctrl *ctrl, u8 event_type,
> u8 event_info, u8 log_page)
> {
> struct nvmet_async_event *aen;
>
> aen = kmalloc(sizeof(*aen), GFP_KERNEL);
> if (!aen)
> - return;
> + return -ENOMEM;
>
> aen->event_type = event_type;
> aen->event_info = event_info;
> @@ -191,6 +191,8 @@ void nvmet_add_async_event(struct nvmet_ctrl *ctrl, u8 event_type,
> mutex_unlock(&ctrl->lock);
>
> schedule_work(&ctrl->async_event_work);
> +
> + return 0;
> }
>
> static void nvmet_add_to_changed_ns_log(struct nvmet_ctrl *ctrl, __le32 nsid)
> diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h
> index c51f8dd01dc4..3d313a6452cc 100644
> --- a/drivers/nvme/target/nvmet.h
> +++ b/drivers/nvme/target/nvmet.h
> @@ -441,7 +441,7 @@ void nvmet_port_disc_changed(struct nvmet_port *port,
> struct nvmet_subsys *subsys);
> void nvmet_subsys_disc_changed(struct nvmet_subsys *subsys,
> struct nvmet_host *host);
> -void nvmet_add_async_event(struct nvmet_ctrl *ctrl, u8 event_type,
> +int nvmet_add_async_event(struct nvmet_ctrl *ctrl, u8 event_type,
> u8 event_info, u8 log_page);
>
> #define NVMET_QUEUE_SIZE 1024
> --
> 2.20.1
>

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