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block: take bd_mutex around delete_partitions in del_gendisk
authorChristoph Hellwig <hch@lst.de>
Tue, 6 Apr 2021 06:22:56 +0000 (08:22 +0200)
committerJens Axboe <axboe@kernel.dk>
Thu, 8 Apr 2021 16:24:36 +0000 (10:24 -0600)
commitc76f48eb5c084b1e15c931ae8cc1826cd771d70d
treee077b28cd7d52c2f98be76d4faf699341f7393b2
parentd3c4a43d9291279c28b26757351a6ab72c110753
block: take bd_mutex around delete_partitions in del_gendisk

There is nothing preventing an ioctl from trying do delete partition
concurrenly with del_gendisk, so take open_mutex to serialize against
that.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210406062303.811835-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/genhd.c
block/partitions/core.c