Without that we'll pass a wrong payload size in cmd->sdb, which
can lead to hangs with drivers that need the total transfer size.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reported-by: Chris Valean <v-chvale@xxxxxxxxxxxxx>
Reported-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
Fixes: f9d03f96 ("block: improve handling of the magic discard payload")
---
drivers/scsi/scsi_lib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index c35b6de..ad4ff8f 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1018,7 +1018,7 @@ static int scsi_init_sgtable(struct request *req, struct scsi_data_buffer *sdb)
count = blk_rq_map_sg(req->q, req, sdb->table.sgl);
BUG_ON(count > sdb->table.nents);
sdb->table.nents = count;
- sdb->length = blk_rq_bytes(req);
+ sdb->length = blk_rq_payload_bytes(req);
return BLKPREP_OK;
}
--
2.1.4
--
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