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block: move more syncing and invalidation to delete_partition 

Move the calls to fsync_bdev and __invalidate_device from del_gendisk to
delete_partition.  For the other two callers that check that there are
no openers for the delete partitions(s) the callouts are a no-op as no
file system can be mounted, but this keeps all the cleanup in one
place.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210406062303.811835-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2021-04-06 08:22:54 +02:00 committed by Jens Axboe
parent 45611837bb
commit 473338be3a
2 changed files with 4 additions and 7 deletions
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5
block/genhd.c
View File

@ -686,11 +686,8 @@ void del_gendisk(struct gendisk *disk)
/* invalidate stuff */
disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY);
while ((part = disk_part_iter_next(&piter))) {
fsync_bdev(part);
__invalidate_device(part, true);
while ((part = disk_part_iter_next(&piter)))
delete_partition(part);
}
disk_part_iter_exit(&piter);
fsync_bdev(disk->part0);

6
block/partitions/core.c
View File

@ -287,6 +287,9 @@ struct device_type part_type = {
*/
void delete_partition(struct block_device *part)
{
fsync_bdev(part);
__invalidate_device(part, true);
xa_erase(&part->bd_disk->part_tbl, part->bd_partno);
kobject_put(part->bd_holder_dir);
device_del(&part->bd_device);
@ -468,9 +471,6 @@ int bdev_del_partition(struct block_device *bdev, int partno)
if (part->bd_openers)
goto out_unlock;
sync_blockdev(part);
invalidate_bdev(part);
delete_partition(part);
ret = 0;
out_unlock: