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[ Upstream commit e8b58ef09e84c15cf782b01cfc73cc5b1180d519 ] Use the proper helper to mark a surpise removal, remove the gendisk as soon as possible when removing the device and implement the ->free_disk callback to ensure the private data is alive as long as the gendisk has references. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Link: https://lore.kernel.org/r/20220619060552.1850436-3-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>