diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-core.c | 2 | ||||
| -rw-r--r-- | block/blk-flush.c | 3 | ||||
| -rw-r--r-- | block/blk-map.c | 7 | ||||
| -rw-r--r-- | block/genhd.c | 8 |
4 files changed, 15 insertions, 5 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index d34433ae791..795154e54a7 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1725,6 +1725,8 @@ int blk_insert_cloned_request(struct request_queue *q, struct request *rq) where = ELEVATOR_INSERT_FLUSH; add_acct_request(q, rq, where); + if (where == ELEVATOR_INSERT_FLUSH) + __blk_run_queue(q); spin_unlock_irqrestore(q->queue_lock, flags); return 0; diff --git a/block/blk-flush.c b/block/blk-flush.c index 491eb30a242..720ad607ff9 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -320,7 +320,7 @@ void blk_insert_flush(struct request *rq) return; } - BUG_ON(!rq->bio || rq->bio != rq->biotail); + BUG_ON(rq->bio != rq->biotail); /*assumes zero or single bio rq */ /* * If there's data but flush is not necessary, the request can be @@ -330,7 +330,6 @@ void blk_insert_flush(struct request *rq) if ((policy & REQ_FSEQ_DATA) && !(policy & (REQ_FSEQ_PREFLUSH | REQ_FSEQ_POSTFLUSH))) { list_add_tail(&rq->queuelist, &q->queue_head); - blk_run_queue_async(q); return; } diff --git a/block/blk-map.c b/block/blk-map.c index e663ac2d8e6..164cd005970 100644 --- a/block/blk-map.c +++ b/block/blk-map.c @@ -204,10 +204,11 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq, if (!iov[i].iov_len) return -EINVAL; - if (uaddr & queue_dma_alignment(q)) { + /* + * Keep going so we check length of all segments + */ + if (uaddr & queue_dma_alignment(q)) unaligned = 1; - break; - } } if (unaligned || (q->dma_pad_mask & len) || map_data) diff --git a/block/genhd.c b/block/genhd.c index e2f67902dd0..d261b73b974 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -611,6 +611,12 @@ void add_disk(struct gendisk *disk) register_disk(disk); blk_register_queue(disk); + /* + * Take an extra ref on queue which will be put on disk_release() + * so that it sticks around as long as @disk is there. + */ + WARN_ON_ONCE(blk_get_queue(disk->queue)); + retval = sysfs_create_link(&disk_to_dev(disk)->kobj, &bdi->dev->kobj, "bdi"); WARN_ON(retval); @@ -1095,6 +1101,8 @@ static void disk_release(struct device *dev) disk_replace_part_tbl(disk, NULL); free_part_stats(&disk->part0); free_part_info(&disk->part0); + if (disk->queue) + blk_put_queue(disk->queue); kfree(disk); } struct class block_class = { |