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Groups > linux.kernel > #1635468

Re: [PATCH 1/2] lightnvm: create cmd before allocating request

From Matias Bjørling <m@bjorling.me>
Newsgroups linux.kernel
Subject Re: [PATCH 1/2] lightnvm: create cmd before allocating request
Date 2017-05-04 10:10 +0200
Message-ID <tDjZM-MX-23@gated-at.bofh.it> (permalink)
References <tCYBX-3bN-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 05/03/2017 11:19 AM, Javier González wrote:
> Create nvme command before allocating a request using
> nvme_alloc_request, which uses the command direction. Up until now, the
> command has been zeroized, so all commands have been allocated as a
> read operation.
>
> Signed-off-by: Javier González <javier@cnexlabs.com>
> ---
>  drivers/nvme/host/lightnvm.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
> index de61a4a03d78..090bbeb655bc 100644
> --- a/drivers/nvme/host/lightnvm.c
> +++ b/drivers/nvme/host/lightnvm.c
> @@ -503,6 +503,8 @@ static int nvme_nvm_submit_io(struct nvm_dev *dev, struct nvm_rq *rqd)
>  	if (!cmd)
>  		return -ENOMEM;
>
> +	nvme_nvm_rqtocmd(rq, rqd, ns, cmd);
> +
>  	rq = nvme_alloc_request(q, (struct nvme_command *)cmd, 0, NVME_QID_ANY);
>  	if (IS_ERR(rq)) {
>  		kfree(cmd);
> @@ -517,8 +519,6 @@ static int nvme_nvm_submit_io(struct nvm_dev *dev, struct nvm_rq *rqd)
>  		rq->__data_len = 0;
>  	}
>
> -	nvme_nvm_rqtocmd(rq, rqd, ns, cmd);
> -
>  	rq->end_io_data = rqd;
>
>  	blk_execute_rq_nowait(q, NULL, rq, 0, nvme_nvm_end_io);
>

Reviewed-by: Matias Bjørling <matias@cnexlabs.com>

Jens, would you pick this up when convenient? Thank you!

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Thread

[PATCH 1/2] lightnvm: create cmd before allocating request "Javier González" <jg@lightnvm.io> - 2017-05-03 11:20 +0200
  Re: [PATCH 1/2] lightnvm: create cmd before allocating request Matias Bjørling <m@bjorling.me> - 2017-05-04 10:10 +0200
  Re: [PATCH 1/2] lightnvm: create cmd before allocating request Christoph Hellwig <hch@infradead.org> - 2017-05-04 13:30 +0200
  Re: [PATCH 1/2] lightnvm: create cmd before allocating request Javier González <jg@lightnvm.io> - 2017-05-04 16:00 +0200
  Re: [PATCH 1/2] lightnvm: create cmd before allocating request Jens Axboe <axboe@kernel.dk> - 2017-05-04 16:20 +0200

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