diff options
Diffstat (limited to 'block/genhd.c')
| -rw-r--r-- | block/genhd.c | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/block/genhd.c b/block/genhd.c index 02d9cfb9e077..90c402771bb5 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -368,7 +368,6 @@ int disk_scan_partitions(struct gendisk *disk, fmode_t mode) if (disk->open_partitions) return -EBUSY; - set_bit(GD_NEED_PART_SCAN, &disk->state); /* * If the device is opened exclusively by current thread already, it's * safe to scan partitons, otherwise, use bd_prepare_to_claim() to @@ -381,12 +380,19 @@ int disk_scan_partitions(struct gendisk *disk, fmode_t mode) return ret; } + set_bit(GD_NEED_PART_SCAN, &disk->state); bdev = blkdev_get_by_dev(disk_devt(disk), mode & ~FMODE_EXCL, NULL); if (IS_ERR(bdev)) ret = PTR_ERR(bdev); else blkdev_put(bdev, mode & ~FMODE_EXCL); + /* + * If blkdev_get_by_dev() failed early, GD_NEED_PART_SCAN is still set, + * and this will cause that re-assemble partitioned raid device will + * creat partition for underlying disk. + */ + clear_bit(GD_NEED_PART_SCAN, &disk->state); if (!(mode & FMODE_EXCL)) bd_abort_claiming(disk->part0, disk_scan_partitions); return ret; @@ -420,6 +426,9 @@ int __must_check device_add_disk(struct device *parent, struct gendisk *disk, */ elevator_init_mq(disk->queue); + /* Mark bdev as having a submit_bio, if needed */ + disk->part0->bd_has_submit_bio = disk->fops->submit_bio != NULL; + /* * If the driver provides an explicit major number it also must provide * the number of minors numbers supported, and those will be used to @@ -466,12 +475,10 @@ int __must_check device_add_disk(struct device *parent, struct gendisk *disk, if (ret) goto out_device_del; - if (!sysfs_deprecated) { - ret = sysfs_create_link(block_depr, &ddev->kobj, - kobject_name(&ddev->kobj)); - if (ret) - goto out_device_del; - } + ret = sysfs_create_link(block_depr, &ddev->kobj, + kobject_name(&ddev->kobj)); + if (ret) + goto out_device_del; /* * avoid probable deadlock caused by allocating memory with @@ -554,8 +561,7 @@ out_put_holder_dir: out_del_integrity: blk_integrity_del(disk); out_del_block_link: - if (!sysfs_deprecated) - sysfs_remove_link(block_depr, dev_name(ddev)); + sysfs_remove_link(block_depr, dev_name(ddev)); out_device_del: device_del(ddev); out_free_ext_minor: @@ -657,8 +663,7 @@ void del_gendisk(struct gendisk *disk) part_stat_set_all(disk->part0, 0); disk->part0->bd_stamp = 0; - if (!sysfs_deprecated) - sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk))); + sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk))); pm_runtime_set_memalloc_noio(disk_to_dev(disk), false); device_del(disk_to_dev(disk)); @@ -903,7 +908,6 @@ static int __init genhd_device_init(void) { int error; - block_class.dev_kobj = sysfs_dev_block_kobj; error = class_register(&block_class); if (unlikely(error)) return error; @@ -912,8 +916,7 @@ static int __init genhd_device_init(void) register_blkdev(BLOCK_EXT_MAJOR, "blkext"); /* create top-level block dir */ - if (!sysfs_deprecated) - block_depr = kobject_create_and_add("block", NULL); + block_depr = kobject_create_and_add("block", NULL); return 0; } |