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block: simplify partition removal

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Always look up the first available entry instead of the complicated
stateful traversal.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210406062303.811835-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2021-04-06 08:22:57 +02:00 committed by Jens Axboe
parent c76f48eb5c
commit 6c4541a8bb
1 changed files with 6 additions and 4 deletions
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10
block/partitions/core.c
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@ -528,15 +528,17 @@ static bool disk_unlock_native_capacity(struct gendisk *disk)
void blk_drop_partitions(struct gendisk *disk)
{
struct disk_part_iter piter;
struct block_device *part;
unsigned long idx;
lockdep_assert_held(&disk->part0->bd_mutex);
disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY);
while ((part = disk_part_iter_next(&piter)))
xa_for_each_start(&disk->part_tbl, idx, part, 1) {
if (!bdgrab(part))
continue;
delete_partition(part);
disk_part_iter_exit(&piter);
bdput(part);
}
}
static bool blk_add_partition(struct gendisk *disk, struct block_device *bdev,