block: kill rq->data
Now that all block request data transfer is done via bio, rq->data
isn't used. Kill it.
While at it, make the roles of rq->special and buffer clear.
[ Impact: drop now unncessary field from struct request ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Boaz Harrosh <bharrosh@panasas.com>
diff --git a/block/blk-core.c b/block/blk-core.c
index 0520cc7..6dd180c 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -189,10 +189,9 @@
(unsigned long long)rq->sector,
rq->nr_sectors,
rq->current_nr_sectors);
- printk(KERN_INFO " bio %p, biotail %p, buffer %p, data %p, len %u\n",
+ printk(KERN_INFO " bio %p, biotail %p, buffer %p, len %u\n",
rq->bio, rq->biotail,
- rq->buffer, rq->data,
- rq->data_len);
+ rq->buffer, rq->data_len);
if (blk_pc_request(rq)) {
printk(KERN_INFO " cdb: ");