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authorMartin K. Petersen <martin.petersen@oracle.com>2021-06-08 23:39:26 -0400
committerMartin K. Petersen <martin.petersen@oracle.com>2021-07-20 22:10:42 -0400
commitd2c945f01d233085fedc9e3cf7ec180eaa2b7a85 (patch)
tree86f4c5b04ee5865188df9f01df9869a01eb35a3d /include/scsi
parent87662a472a9d8980b26ba5803447df2c4981d467 (diff)
downloadlinux-d2c945f01d233085fedc9e3cf7ec180eaa2b7a85.tar.bz2
scsi: core: Make scsi_get_lba() return the LBA
scsi_get_lba() confusingly returned the block layer sector number expressed in units of 512 bytes. Now that we have a more aptly named scsi_get_sector() function, make scsi_get_lba() return the actual LBA. Link: https://lore.kernel.org/r/20210609033929.3815-13-martin.petersen@oracle.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Benjamin Block <bblock@linux.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Message-Id: <20210609033929.3815-13-martin.petersen@oracle.com>
Diffstat (limited to 'include/scsi')
-rw-r--r--include/scsi/scsi_cmnd.h12
1 files changed, 7 insertions, 5 deletions
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index cba63377d46a..90da9617d28a 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -225,6 +225,13 @@ static inline sector_t scsi_get_sector(struct scsi_cmnd *scmd)
return blk_rq_pos(scmd->request);
}
+static inline sector_t scsi_get_lba(struct scsi_cmnd *scmd)
+{
+ unsigned int shift = ilog2(scmd->device->sector_size) - SECTOR_SHIFT;
+
+ return blk_rq_pos(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.
@@ -287,11 +294,6 @@ static inline unsigned char scsi_get_prot_type(struct scsi_cmnd *scmd)
return scmd->prot_type;
}
-static inline sector_t scsi_get_lba(struct scsi_cmnd *scmd)
-{
- return blk_rq_pos(scmd->request);
-}
-
static inline u32 scsi_prot_ref_tag(struct scsi_cmnd *scmd)
{
struct request *rq = blk_mq_rq_from_pdu(scmd);