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Convert block2mtd to use bdev_open_by_dev() and bdev_open_by_path() and pass the handle around. CC: Joern Engel <joern@lazybastard.org> CC: linux-mtd@lists.infradead.org Acked-by: Christoph Hellwig <hch@lst.de> Acked-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20230927093442.25915-12-jack@suse.cz Signed-off-by: Christian Brauner <brauner@kernel.org>