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-rw-r--r--block/blk-core.c23
1 files changed, 17 insertions, 6 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index 4afb39c8233..fba4ca7c608 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -102,27 +102,38 @@ 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)
{
INIT_LIST_HEAD(&rq->queuelist);
INIT_LIST_HEAD(&rq->donelist);
-
- rq->errors = 0;
+ 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->q = q;
- rq->special = NULL;
+ rq->cmd_len = 0;
+ memset(rq->cmd, 0, sizeof(rq->cmd));
rq->data_len = 0;
+ rq->sense_len = 0;
rq->data = NULL;
- rq->nr_phys_segments = 0;
rq->sense = NULL;
rq->end_io = NULL;
rq->end_io_data = NULL;
- rq->completion_data = NULL;
rq->next_rq = NULL;
}