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-rw-r--r--block/bsg.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/block/bsg.c b/block/bsg.c
index d60eee54940..ed264682723 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -1,5 +1,5 @@
/*
- * bsg.c - block layer implementation of the sg v3 interface
+ * bsg.c - block layer implementation of the sg v4 interface
*
* Copyright (C) 2004 Jens Axboe <axboe@suse.de> SUSE Labs
* Copyright (C) 2004 Peter M. Jones <pjones@redhat.com>
@@ -421,7 +421,6 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr,
hdr->info = 0;
if (hdr->device_status || hdr->transport_status || hdr->driver_status)
hdr->info |= SG_INFO_CHECK;
- hdr->din_resid = rq->data_len;
hdr->response_len = 0;
if (rq->sense_len && hdr->response) {
@@ -437,9 +436,14 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr,
}
if (rq->next_rq) {
+ hdr->dout_resid = rq->data_len;
+ hdr->din_resid = rq->next_rq->data_len;
blk_rq_unmap_user(bidi_bio);
blk_put_request(rq->next_rq);
- }
+ } else if (rq_data_dir(rq) == READ)
+ hdr->din_resid = rq->data_len;
+ else
+ hdr->dout_resid = rq->data_len;
blk_rq_unmap_user(bio);
blk_put_request(rq);