From: Bart Van Assche <bvanassche@acm.org>
To: "Martin K. Petersen" <martin.petersen@oracle.com>,
linux-scsi@vger.kernel.org
Subject: Re: [PATCH v2 1/5] scsi: core: Add helper to return number of logical blocks in a request
Date: Mon, 9 Aug 2021 14:54:51 -0700 [thread overview]
Message-ID: <88c5ecd4-7020-5eaa-65cc-b105b850a1e5@acm.org> (raw)
In-Reply-To: <20210806040023.5355-2-martin.petersen@oracle.com>
On 8/5/21 9:00 PM, Martin K. Petersen wrote:
> Cc: Bart Van Assche <bvanassche@acm.org>
> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
> ---
> include/scsi/scsi_cmnd.h | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
> index 90da9617d28a..804b2b33da4a 100644
> --- a/include/scsi/scsi_cmnd.h
> +++ b/include/scsi/scsi_cmnd.h
> @@ -232,6 +232,13 @@ static inline sector_t scsi_get_lba(struct scsi_cmnd *scmd)
> return blk_rq_pos(scmd->request) >> shift;
> }
>
> +static inline unsigned int scsi_logical_block_count(struct scsi_cmnd *scmd)
> +{
> + unsigned int shift = ilog2(scmd->device->sector_size) - SECTOR_SHIFT;
> +
> + return blk_rq_bytes(scmd->request) >> shift;
> +}
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
next prev parent reply other threads:[~2021-08-09 21:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-06 4:00 Use the proper SCSI midlayer interface for PI Martin K. Petersen
2021-08-06 4:00 ` [PATCH v2 1/5] scsi: core: Add helper to return number of logical blocks in a request Martin K. Petersen
2021-08-09 21:54 ` Bart Van Assche [this message]
2021-08-17 3:17 ` Martin K. Petersen
2021-08-06 4:00 ` [PATCH v2 2/5] scsi: isci: Use the proper SCSI midlayer interfaces for PI Martin K. Petersen
2021-08-09 21:57 ` Bart Van Assche
2021-08-06 4:00 ` [PATCH v2 3/5] scsi: mpi3mr: " Martin K. Petersen
2021-08-12 8:51 ` Kashyap Desai
2021-08-06 4:00 ` [PATCH v2 4/5] scsi: mpt3sas: " Martin K. Petersen
2021-08-07 3:43 ` kernel test robot
2021-08-07 3:43 ` kernel test robot
2021-08-06 4:00 ` [PATCH v2 5/5] scsi: lpfc: " Martin K. Petersen
2021-08-24 15:11 ` James Smart
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