diff options
| author | Christoph Hellwig <hch@lst.de> | 2021-04-06 09:22:55 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-04-08 19:24:36 +0300 |
| commit | d3c4a43d9291279c28b26757351a6ab72c110753 (patch) | |
| tree | 191523e681fdff315c7e14029ace1a42ce1aaa5e /block | |
| parent | 473338be3aaea117a7133720305f240eb7f68951 (diff) | |
| download | linux-d3c4a43d9291279c28b26757351a6ab72c110753.tar.xz | |
block: refactor blk_drop_partitions
Move the busy check and disk-wide sync into the only caller, so that
the remainder can be shared with del_gendisk. Also pass the gendisk
instead of the bdev as that is all that is needed.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210406062303.811835-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk.h | 1 | ||||
| -rw-r--r-- | block/genhd.c | 11 | ||||
| -rw-r--r-- | block/partitions/core.c | 14 |
3 files changed, 4 insertions, 22 deletions
diff --git a/block/blk.h b/block/blk.h index 8f4337c5a9e6..8b3591aee0a5 100644 --- a/block/blk.h +++ b/block/blk.h @@ -349,7 +349,6 @@ char *disk_name(struct gendisk *hd, int partno, char *buf); #define ADDPART_FLAG_NONE 0 #define ADDPART_FLAG_RAID 1 #define ADDPART_FLAG_WHOLEDISK 2 -void delete_partition(struct block_device *part); int bdev_add_partition(struct block_device *bdev, int partno, sector_t start, sector_t length); int bdev_del_partition(struct block_device *bdev, int partno); diff --git a/block/genhd.c b/block/genhd.c index 15f99da4543f..8303ec67fd70 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -667,9 +667,6 @@ EXPORT_SYMBOL(device_add_disk_no_queue_reg); */ void del_gendisk(struct gendisk *disk) { - struct disk_part_iter piter; - struct block_device *part; - might_sleep(); if (WARN_ON_ONCE(!disk->queue)) @@ -683,13 +680,7 @@ void del_gendisk(struct gendisk *disk) * disk is marked as dead (GENHD_FL_UP cleared). */ down_write(&bdev_lookup_sem); - - /* invalidate stuff */ - disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY); - while ((part = disk_part_iter_next(&piter))) - delete_partition(part); - disk_part_iter_exit(&piter); - + blk_drop_partitions(disk); fsync_bdev(disk->part0); __invalidate_device(disk->part0, true); diff --git a/block/partitions/core.c b/block/partitions/core.c index 8c1735292940..536f7c5bb0b6 100644 --- a/block/partitions/core.c +++ b/block/partitions/core.c @@ -285,7 +285,7 @@ struct device_type part_type = { * Must be called either with bd_mutex held, before a disk can be opened or * after all disk users are gone. */ -void delete_partition(struct block_device *part) +static void delete_partition(struct block_device *part) { fsync_bdev(part); __invalidate_device(part, true); @@ -526,23 +526,15 @@ static bool disk_unlock_native_capacity(struct gendisk *disk) } } -int blk_drop_partitions(struct block_device *bdev) +void blk_drop_partitions(struct gendisk *disk) { struct disk_part_iter piter; struct block_device *part; - if (bdev->bd_part_count) - return -EBUSY; - - sync_blockdev(bdev); - invalidate_bdev(bdev); - - disk_part_iter_init(&piter, bdev->bd_disk, DISK_PITER_INCL_EMPTY); + disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY); while ((part = disk_part_iter_next(&piter))) delete_partition(part); disk_part_iter_exit(&piter); - - return 0; } static bool blk_add_partition(struct gendisk *disk, struct block_device *bdev, |