block: don't skip empty device in in disk_uevent

Restore the previous behavior by using the correct flag for the whole device
("part0").

Fixes: 99dfc43ecbf6 ("block: use ->bi_bdev for bio based I/O accounting")
Reported-by: John Stultz <john.stultz@linaro.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/genhd.c b/block/genhd.c
index 36ff45b..6379b00 100644 (file)
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -476,7 +476,7 @@ void disk_uevent(struct gendisk *disk, enum kobject_action action)
        struct disk_part_iter piter;
        struct block_device *part;
 
-       disk_part_iter_init(&piter, disk, DISK_PITER_INCL_PART0);
+       disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY_PART0);
        while ((part = disk_part_iter_next(&piter)))
                kobject_uevent(bdev_kobj(part), action);
        disk_part_iter_exit(&piter);