diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-core.c | 4 | ||||
| -rw-r--r-- | block/blk-map.c | 6 | ||||
| -rw-r--r-- | block/blk-merge.c | 21 | ||||
| -rw-r--r-- | block/blk-timeout.c | 20 | ||||
| -rw-r--r-- | block/elevator.c | 12 | ||||
| -rw-r--r-- | block/genhd.c | 2 | ||||
| -rw-r--r-- | block/ioctl.c | 7 |
7 files changed, 22 insertions, 50 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index c3df30cfb3f..10e8a64a5a5 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1770,8 +1770,6 @@ static void end_that_request_last(struct request *req, int error) { struct gendisk *disk = req->rq_disk; - blk_delete_timer(req); - if (blk_rq_tagged(req)) blk_queue_end_tag(req->q, req); @@ -1781,6 +1779,8 @@ static void end_that_request_last(struct request *req, int error) if (unlikely(laptop_mode) && blk_fs_request(req)) laptop_io_completion(); + blk_delete_timer(req); + /* * Account IO completion. bar_rq isn't accounted as a normal * IO on queueing nor completion. Accounting the containing diff --git a/block/blk-map.c b/block/blk-map.c index 4849fa36161..0f4b4b88181 100644 --- a/block/blk-map.c +++ b/block/blk-map.c @@ -217,6 +217,12 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq, return PTR_ERR(bio); if (bio->bi_size != len) { + /* + * Grab an extra reference to this bio, as bio_unmap_user() + * expects to be able to drop it twice as it happens on the + * normal IO completion path + */ + bio_get(bio); bio_endio(bio, 0); bio_unmap_user(bio); return -EINVAL; diff --git a/block/blk-merge.c b/block/blk-merge.c index 8681cd6f991..b92f5b0866b 100644 --- a/block/blk-merge.c +++ b/block/blk-merge.c @@ -222,27 +222,6 @@ new_segment: } EXPORT_SYMBOL(blk_rq_map_sg); -static inline int ll_new_mergeable(struct request_queue *q, - struct request *req, - struct bio *bio) -{ - int nr_phys_segs = bio_phys_segments(q, bio); - - if (req->nr_phys_segments + nr_phys_segs > q->max_phys_segments) { - req->cmd_flags |= REQ_NOMERGE; - if (req == q->last_merge) - q->last_merge = NULL; - return 0; - } - - /* - * A hw segment is just getting larger, bump just the phys - * counter. - */ - req->nr_phys_segments += nr_phys_segs; - return 1; -} - static inline int ll_new_hw_segment(struct request_queue *q, struct request *req, struct bio *bio) diff --git a/block/blk-timeout.c b/block/blk-timeout.c index 972a63f848f..69185ea9fae 100644 --- a/block/blk-timeout.c +++ b/block/blk-timeout.c @@ -75,14 +75,7 @@ void blk_delete_timer(struct request *req) { struct request_queue *q = req->q; - /* - * Nothing to detach - */ - if (!q->rq_timed_out_fn || !req->deadline) - return; - list_del_init(&req->timeout_list); - if (list_empty(&q->timeout_list)) del_timer(&q->timeout); } @@ -142,7 +135,7 @@ void blk_rq_timed_out_timer(unsigned long data) } if (next_set && !list_empty(&q->timeout_list)) - mod_timer(&q->timeout, round_jiffies(next)); + mod_timer(&q->timeout, round_jiffies_up(next)); spin_unlock_irqrestore(q->queue_lock, flags); } @@ -198,17 +191,10 @@ void blk_add_timer(struct request *req) /* * If the timer isn't already pending or this timeout is earlier - * than an existing one, modify the timer. Round to next nearest + * than an existing one, modify the timer. Round up to next nearest * second. */ - expiry = round_jiffies(req->deadline); - - /* - * We use ->deadline == 0 to detect whether a timer was added or - * not, so just increase to next jiffy for that specific case - */ - if (unlikely(!req->deadline)) - req->deadline = 1; + expiry = round_jiffies_up(req->deadline); if (!timer_pending(&q->timeout) || time_before(expiry, q->timeout.expires)) diff --git a/block/elevator.c b/block/elevator.c index 59173a69ebd..9ac82dde99d 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -773,12 +773,6 @@ struct request *elv_next_request(struct request_queue *q) */ rq->cmd_flags |= REQ_STARTED; blk_add_trace_rq(q, rq, BLK_TA_ISSUE); - - /* - * We are now handing the request to the hardware, - * add the timeout handler - */ - blk_add_timer(rq); } if (!q->boundary_rq || q->boundary_rq == rq) { @@ -850,6 +844,12 @@ void elv_dequeue_request(struct request_queue *q, struct request *rq) */ if (blk_account_rq(rq)) q->in_flight++; + + /* + * We are now handing the request to the hardware, add the + * timeout handler. + */ + blk_add_timer(rq); } EXPORT_SYMBOL(elv_dequeue_request); diff --git a/block/genhd.c b/block/genhd.c index 4e5e7493f67..27549e470da 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -768,6 +768,8 @@ static int __init genhd_device_init(void) bdev_map = kobj_map_init(base_probe, &block_class_lock); blk_dev_init(); + register_blkdev(BLOCK_EXT_MAJOR, "blkext"); + #ifndef CONFIG_SYSFS_DEPRECATED /* create top-level block dir */ block_depr = kobject_create_and_add("block", NULL); diff --git a/block/ioctl.c b/block/ioctl.c index c832d639b6e..d03985b04d6 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -18,7 +18,6 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user struct disk_part_iter piter; long long start, length; int partno; - int err; if (!capable(CAP_SYS_ADMIN)) return -EACCES; @@ -61,10 +60,10 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user disk_part_iter_exit(&piter); /* all seems OK */ - err = add_partition(disk, partno, start, length, - ADDPART_FLAG_NONE); + part = add_partition(disk, partno, start, length, + ADDPART_FLAG_NONE); mutex_unlock(&bdev->bd_mutex); - return err; + return IS_ERR(part) ? PTR_ERR(part) : 0; case BLKPG_DEL_PARTITION: part = disk_get_part(disk, partno); if (!part) |