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-rw-r--r--block/bio.c2
-rw-r--r--block/blk-wbt.c3
-rw-r--r--block/genhd.c7
3 files changed, 9 insertions, 3 deletions
diff --git a/block/bio.c b/block/bio.c
index 7cb7d2ff139b..6c470a50a36d 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -567,7 +567,7 @@ EXPORT_SYMBOL(bio_alloc_bioset);
* be reused by calling bio_uninit() before calling bio_init() again.
*
* Note that unlike bio_alloc() or bio_alloc_bioset() allocations from this
- * function are not backed by a mempool can can fail. Do not use this function
+ * function are not backed by a mempool can fail. Do not use this function
* for allocations in the file system I/O path.
*
* Returns: Pointer to new bio on success, NULL on failure.
diff --git a/block/blk-wbt.c b/block/blk-wbt.c
index 246467926253..c293e08b301f 100644
--- a/block/blk-wbt.c
+++ b/block/blk-wbt.c
@@ -841,12 +841,11 @@ int wbt_init(struct request_queue *q)
rwb->last_comp = rwb->last_issue = jiffies;
rwb->win_nsec = RWB_WINDOW_NSEC;
rwb->enable_state = WBT_STATE_ON_DEFAULT;
- rwb->wc = 1;
+ rwb->wc = test_bit(QUEUE_FLAG_WC, &q->queue_flags);
rwb->rq_depth.default_depth = RWB_DEF_DEPTH;
rwb->min_lat_nsec = wbt_default_latency_nsec(q);
wbt_queue_depth_changed(&rwb->rqos);
- wbt_set_write_cache(q, test_bit(QUEUE_FLAG_WC, &q->queue_flags));
/*
* Assign rwb and add the stats callback.
diff --git a/block/genhd.c b/block/genhd.c
index 514395361d7c..17b33c62423d 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -507,6 +507,13 @@ int __must_check device_add_disk(struct device *parent, struct gendisk *disk,
*/
dev_set_uevent_suppress(ddev, 0);
disk_uevent(disk, KOBJ_ADD);
+ } else {
+ /*
+ * Even if the block_device for a hidden gendisk is not
+ * registered, it needs to have a valid bd_dev so that the
+ * freeing of the dynamic major works.
+ */
+ disk->part0->bd_dev = MKDEV(disk->major, disk->first_minor);
}
disk_update_readahead(disk);