Commit 59ef0eaa authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

nvmet: Introduce nvmet_dsm_len() helper 



Similar to the nvmet_rw_len helper.

Reviewed-by: default avatarChaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
[split patch, update changelog]
Signed-off-by: default avatarLogan Gunthorpe <logang@deltatee.com>
Signed-off-by: default avatarKeith Busch <kbusch@kernel.org>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 6f86f2c9

drivers/nvme/target/io-cmd-file.c

+1 −2
Original line number Diff line number Diff line
@@ -379,8 +379,7 @@ u16 nvmet_file_parse_io_cmd(struct nvmet_req *req) 
		return 0;

	case nvme_cmd_dsm:

		req->execute = nvmet_file_execute_dsm;

		req->data_len = (le32_to_cpu(cmd->dsm.nr) + 1) *

			sizeof(struct nvme_dsm_range);

		req->data_len = nvmet_dsm_len(req);

		return 0;

	case nvme_cmd_write_zeroes:

		req->execute = nvmet_file_execute_write_zeroes;

drivers/nvme/target/nvmet.h

+6 −0
Original line number Diff line number Diff line
@@ -495,6 +495,12 @@ static inline u32 nvmet_rw_len(struct nvmet_req *req) 
			req->ns->blksize_shift;

}



static inline u32 nvmet_dsm_len(struct nvmet_req *req)

{

	return (le32_to_cpu(req->cmd->dsm.nr) + 1) *

		sizeof(struct nvme_dsm_range);

}



u16 errno_to_nvme_status(struct nvmet_req *req, int errno);



/* Convert a 32-bit number to a 16-bit 0's based number */

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