[PATCH v5 1/5] block: Add alternative_gpt_sector() operation

[Dmitry Osipenko <digetx@gmail.com>]

Add alternative_gpt_sector() block device operation which specifies
alternative location of a GPT entry. This allows us to support Android
devices which have GPT entry at a non-standard location and can't be
repartitioned easily.

Suggested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 include/linux/blkdev.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 111a3911c4d2..a662a8f5065f 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1848,6 +1848,7 @@ struct block_device_operations {
 	int (*report_zones)(struct gendisk *, sector_t sector,
 			unsigned int nr_zones, report_zones_cb cb, void *data);
 	char *(*devnode)(struct gendisk *disk, umode_t *mode);
+	int (*alternative_gpt_sector)(struct block_device *, sector_t *);
 	struct module *owner;
 	const struct pr_ops *pr_ops;
 };
-- 
2.32.0