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-rw-r--r--block/blk-barrier.c7
-rw-r--r--block/blk-core.c30
2 files changed, 5 insertions, 32 deletions
diff --git a/block/blk-barrier.c b/block/blk-barrier.c
index 55c5f1fc4f1f..722140ac175a 100644
--- a/block/blk-barrier.c
+++ b/block/blk-barrier.c
@@ -143,10 +143,8 @@ static void queue_flush(struct request_queue *q, unsigned which)
end_io = post_flush_end_io;
}
- rq->cmd_flags = REQ_HARDBARRIER;
rq_init(q, rq);
- rq->elevator_private = NULL;
- rq->elevator_private2 = NULL;
+ rq->cmd_flags = REQ_HARDBARRIER;
rq->rq_disk = q->bar_rq.rq_disk;
rq->end_io = end_io;
q->prepare_flush_fn(q, rq);
@@ -167,14 +165,11 @@ static inline struct request *start_ordered(struct request_queue *q,
blkdev_dequeue_request(rq);
q->orig_bar_rq = rq;
rq = &q->bar_rq;
- rq->cmd_flags = 0;
rq_init(q, rq);
if (bio_data_dir(q->orig_bar_rq->bio) == WRITE)
rq->cmd_flags |= REQ_RW;
if (q->ordered & QUEUE_ORDERED_FUA)
rq->cmd_flags |= REQ_FUA;
- rq->elevator_private = NULL;
- rq->elevator_private2 = NULL;
init_request_from_bio(rq, q->orig_bar_rq->bio);
rq->end_io = bar_end_io;
diff --git a/block/blk-core.c b/block/blk-core.c
index 2a438a93f723..e447799256d6 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -107,40 +107,18 @@ struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev)
}
EXPORT_SYMBOL(blk_get_backing_dev_info);
-/*
- * We can't just memset() the structure, since the allocation path
- * already stored some information in the request.
- */
void rq_init(struct request_queue *q, struct request *rq)
{
+ memset(rq, 0, sizeof(*rq));
+
INIT_LIST_HEAD(&rq->queuelist);
INIT_LIST_HEAD(&rq->donelist);
rq->q = q;
rq->sector = rq->hard_sector = (sector_t) -1;
- rq->nr_sectors = rq->hard_nr_sectors = 0;
- rq->current_nr_sectors = rq->hard_cur_sectors = 0;
- rq->bio = rq->biotail = NULL;
INIT_HLIST_NODE(&rq->hash);
RB_CLEAR_NODE(&rq->rb_node);
- rq->rq_disk = NULL;
- rq->nr_phys_segments = 0;
- rq->nr_hw_segments = 0;
- rq->ioprio = 0;
- rq->special = NULL;
- rq->buffer = NULL;
rq->tag = -1;
- rq->errors = 0;
rq->ref_count = 1;
- rq->cmd_len = 0;
- memset(rq->cmd, 0, sizeof(rq->cmd));
- rq->data_len = 0;
- rq->extra_len = 0;
- rq->sense_len = 0;
- rq->data = NULL;
- rq->sense = NULL;
- rq->end_io = NULL;
- rq->end_io_data = NULL;
- rq->next_rq = NULL;
}
static void req_bio_endio(struct request *rq, struct bio *bio,
@@ -607,6 +585,8 @@ blk_alloc_request(struct request_queue *q, int rw, int priv, gfp_t gfp_mask)
if (!rq)
return NULL;
+ rq_init(q, rq);
+
/*
* first three bits are identical in rq->cmd_flags and bio->bi_rw,
* see bio.h and blkdev.h
@@ -789,8 +769,6 @@ rq_starved:
if (ioc_batching(q, ioc))
ioc->nr_batch_requests--;
- rq_init(q, rq);
-
blk_add_trace_generic(q, bio, rw, BLK_TA_GETRQ);
out:
return rq;