Messages in this thread Patch in this message | | | Date | Fri, 10 Apr 2020 07:45:44 +0200 | From | Christoph Hellwig <> | Subject | Re: s390 boot woe due to "block: fix busy device checking in blk_drop_partitions" |
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Please try this patch:
--- From f42fb98cc627f9b960fd5b9a3a229da5c5dcf54a Mon Sep 17 00:00:00 2001 From: Christoph Hellwig <hch@lst.de> Date: Fri, 10 Apr 2020 07:14:13 +0200 Subject: block: fix busy device checking in blk_drop_partitions again
The previous fix had an off by one in the bd_openers checking, counting the callers blkdev_get.
Fixes: d3ef5536274f ("block: fix busy device checking in blk_drop_partitions") Signed-off-by: Christoph Hellwig <hch@lst.de> --- block/partitions/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/partitions/core.c b/block/partitions/core.c index 1a0a829d8416..bc1ded1331b1 100644 --- a/block/partitions/core.c +++ b/block/partitions/core.c @@ -496,7 +496,7 @@ int blk_drop_partitions(struct gendisk *disk, struct block_device *bdev) if (!disk_part_scan_enabled(disk)) return 0; - if (bdev->bd_part_count || bdev->bd_openers) + if (bdev->bd_part_count || bdev->bd_openers > 1) return -EBUSY; res = invalidate_partition(disk, 0); if (res) -- 2.25.1
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