path: root/block/genhd.c
diff options
authorLinus Torvalds <>2011-11-04 17:06:58 -0700
committerLinus Torvalds <>2011-11-04 17:06:58 -0700
commitb4fdcb02f1e39c27058a885905bd0277370ba441 (patch)
treefd4cfd1994f21f44afe5e7904681fb5ac09f81b8 /block/genhd.c
parent044595d4e448305fbaec472eb7d22636d24e7d8c (diff)
parent6dd9ad7df2019b1e33a372a501907db293ebcd0d (diff)
Merge branch 'for-3.2/core' of git://
* 'for-3.2/core' of git:// (29 commits) block: don't call blk_drain_queue() if elevator is not up blk-throttle: use queue_is_locked() instead of lockdep_is_held() blk-throttle: Take blkcg->lock while traversing blkcg->policy_list blk-throttle: Free up policy node associated with deleted rule block: warn if tag is greater than real_max_depth. block: make gendisk hold a reference to its queue blk-flush: move the queue kick into blk-flush: fix invalid BUG_ON in blk_insert_flush block: Remove the control of complete cpu from bio. block: fix a typo in the blk-cgroup.h file block: initialize the bounce pool if high memory may be added later block: fix request_queue lifetime handling by making blk_queue_cleanup() properly shutdown block: drop @tsk from attempt_plug_merge() and explain sync rules block: make get_request[_wait]() fail if queue is dead block: reorganize throtl_get_tg() and blk_throtl_bio() block: reorganize queue draining block: drop unnecessary blk_get/put_queue() in scsi_cmd_ioctl() and blk_get_tg() block: pass around REQ_* flags instead of broken down booleans during request alloc/free block: move blk_throtl prototypes to block/blk.h block: fix genhd refcounting in blkio_policy_parse_and_set() ... Fix up trivial conflicts due to "mddev_t" -> "struct mddev" conversion and making the request functions be of type "void" instead of "int" in - drivers/md/{faulty.c,linear.c,md.c,md.h,multipath.c,raid0.c,raid1.c,raid10.c,raid5.c} - drivers/staging/zram/zram_drv.c
Diffstat (limited to 'block/genhd.c')
1 files changed, 8 insertions, 0 deletions
diff --git a/block/genhd.c b/block/genhd.c
index 94855a9717de..024fc3944fb5 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -612,6 +612,12 @@ void add_disk(struct gendisk *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,
@@ -1166,6 +1172,8 @@ static void disk_release(struct device *dev)
disk_replace_part_tbl(disk, NULL);
+ if (disk->queue)
+ blk_put_queue(disk->queue);
struct class block_class = {