diff options
-rw-r--r-- | block/genhd.c | 8 | ||||
-rw-r--r-- | include/linux/backing-dev.h | 2 | ||||
-rw-r--r-- | mm/backing-dev.c | 12 |
3 files changed, 8 insertions, 14 deletions
diff --git a/block/genhd.c b/block/genhd.c index c05d509877fa..27511b3d164d 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -840,13 +840,15 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, disk->flags |= GENHD_FL_SUPPRESS_PARTITION_INFO; disk->flags |= GENHD_FL_NO_PART_SCAN; } else { + struct backing_dev_info *bdi = disk->queue->backing_dev_info; + struct device *dev = disk_to_dev(disk); int ret; /* Register BDI before referencing it from bdev */ - disk_to_dev(disk)->devt = devt; - ret = bdi_register_owner(disk->queue->backing_dev_info, - disk_to_dev(disk)); + dev->devt = devt; + ret = bdi_register(bdi, "%u:%u", MAJOR(devt), MINOR(devt)); WARN_ON(ret); + bdi_set_owner(bdi, dev); blk_register_region(disk_devt(disk), disk->minors, NULL, exact_match, exact_lock, disk); } diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index c9ad5c3b7b4b..4098ed6ba6b4 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -33,7 +33,7 @@ int bdi_register(struct backing_dev_info *bdi, const char *fmt, ...); __printf(2, 0) int bdi_register_va(struct backing_dev_info *bdi, const char *fmt, va_list args); -int bdi_register_owner(struct backing_dev_info *bdi, struct device *owner); +void bdi_set_owner(struct backing_dev_info *bdi, struct device *owner); void bdi_unregister(struct backing_dev_info *bdi); struct backing_dev_info *bdi_alloc_node(gfp_t gfp_mask, int node_id); diff --git a/mm/backing-dev.c b/mm/backing-dev.c index eb6b51e49d11..bb993f99d424 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -977,20 +977,12 @@ int bdi_register(struct backing_dev_info *bdi, const char *fmt, ...) } EXPORT_SYMBOL(bdi_register); -int bdi_register_owner(struct backing_dev_info *bdi, struct device *owner) +void bdi_set_owner(struct backing_dev_info *bdi, struct device *owner) { - int rc; - - rc = bdi_register(bdi, "%u:%u", MAJOR(owner->devt), MINOR(owner->devt)); - if (rc) - return rc; - /* Leaking owner reference... */ - WARN_ON(bdi->owner); + WARN_ON_ONCE(bdi->owner); bdi->owner = owner; get_device(owner); - return 0; } -EXPORT_SYMBOL(bdi_register_owner); /* * Remove bdi from bdi_list, and ensure that it is no longer visible |