Commit 10c70d95 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe

block: remove the bd_openers checks in blk_drop_partitions

When replacing the bd_super check with a bd_openers I followed a logical
conclusion, which turns out to be utterly wrong.  When a block device has
bd_super sets it has a mount file system on it (although not every
mounted file system sets bd_super), but that also implies it doesn't even
have partitions to start with.

So instead of trying to come up with a logical check for all openers,
just remove the check entirely.

Fixes: d3ef5536 ("block: fix busy device checking in blk_drop_partitions")
Fixes: cb6b771b ("block: fix busy device checking in blk_drop_partitions again")
Reported-by: default avatarMichal Koutný <mkoutny@suse.com>
Reported-by: default avatarYang Xu <xuyang2018.jy@cn.fujitsu.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 47ed39e0
...@@ -496,7 +496,7 @@ int blk_drop_partitions(struct gendisk *disk, struct block_device *bdev) ...@@ -496,7 +496,7 @@ int blk_drop_partitions(struct gendisk *disk, struct block_device *bdev)
if (!disk_part_scan_enabled(disk)) if (!disk_part_scan_enabled(disk))
return 0; return 0;
if (bdev->bd_part_count || bdev->bd_openers > 1) if (bdev->bd_part_count)
return -EBUSY; return -EBUSY;
res = invalidate_partition(disk, 0); res = invalidate_partition(disk, 0);
if (res) if (res)
......
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