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From: Keith Busch <kbusch@kernel.org>
To: Logan Gunthorpe <logang@deltatee.com>
Cc: Jens Axboe <axboe@fb.com>, Sagi Grimberg <sagi@grimberg.me>,
	Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>,
	linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org,
	Stephen Bates <sbates@raithlin.com>,
	linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	Max Gurtovoy <maxg@mellanox.com>, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v9 03/12] nvmet: add return value to nvmet_add_async_event()
Date: Thu, 10 Oct 2019 07:17:16 +0900
Message-ID: <20191009221716.GD3009@washi1.fujisawa.hgst.com> (raw)
In-Reply-To: <20191009192530.13079-4-logang@deltatee.com>

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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  reply index

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-09 19:25 [PATCH v9 00/12] nvmet: add target passthru commands support Logan Gunthorpe
2019-10-09 19:25 ` [PATCH v9 01/12] nvme-core: introduce nvme_ctrl_get_by_path() Logan Gunthorpe
2019-10-09 22:13   ` Keith Busch
2019-10-10 11:37   ` Christoph Hellwig
2019-10-09 19:25 ` [PATCH v9 02/12] nvme-core: export existing ctrl and ns interfaces Logan Gunthorpe
2019-10-09 22:14   ` Keith Busch
2019-10-09 19:25 ` [PATCH v9 03/12] nvmet: add return value to nvmet_add_async_event() Logan Gunthorpe
2019-10-09 22:17   ` Keith Busch [this message]
2019-10-09 19:25 ` [PATCH v9 04/12] nvmet: make nvmet_copy_ns_identifier() non-static Logan Gunthorpe
2019-10-09 22:18   ` Keith Busch
2019-10-10 11:50   ` Christoph Hellwig
2019-10-09 19:25 ` [PATCH v9 05/12] Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> [logang@deltatee.com: fixed some of the wording in the help message] Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Logan Gunthorpe
2019-10-10 12:34   ` Christoph Hellwig
2019-10-25 23:09     ` [PATCH v9 05/12] Logan Gunthorpe
2019-10-09 19:25 ` [PATCH v9 05/12] nvmet-passthru: add passthru code to process commands Logan Gunthorpe
2019-10-09 19:25 ` [PATCH v9 06/12] nvmet-passthru: add enable/disable helpers Logan Gunthorpe
2019-10-09 19:25 ` [PATCH v9 07/12] nvmet-core: don't check the data len for pt-ctrl Logan Gunthorpe
2019-10-10 11:04   ` Christoph Hellwig
2019-10-09 19:25 ` [PATCH v9 08/12] nvmet-tcp: don't check data_len in nvmet_tcp_map_data() Logan Gunthorpe
2019-10-10 11:07   ` Christoph Hellwig
2019-10-09 19:25 ` [PATCH v9 09/12] nvmet-configfs: introduce passthru configfs interface Logan Gunthorpe
2019-10-09 19:25 ` [PATCH v9 10/12] block: don't check blk_rq_is_passthrough() in blk_do_io_stat() Logan Gunthorpe
2019-10-10 10:05   ` Christoph Hellwig
2019-10-10 17:56     ` Logan Gunthorpe
2019-10-09 19:25 ` [PATCH v9 11/12] block: call blk_account_io_start() in blk_execute_rq_nowait() Logan Gunthorpe
2019-10-10 10:06   ` Christoph Hellwig
2019-10-09 19:25 ` [PATCH v9 12/12] nvmet-passthru: support block accounting Logan Gunthorpe

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