Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
---
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..570719237f23 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_get_block_count(struct scsi_cmnd *scmd)
+{
+ unsigned int shift = ilog2(scmd->device->sector_size) - SECTOR_SHIFT;
+
+ return blk_rq_bytes(scmd->request) >> shift;
+}
+
/*
* The operations below are hints that tell the controller driver how
* to handle I/Os with DIF or similar types of protection information.
--
2.31.1
