block: sync part's ->bd_has_submit_bio with disk's

submit_bio() always uses bio->bi_bdev->bd_has_submit_bio to decide if disk's ->submit_bio() is called, and bio->bi_bdev could point to one partition device. So we have to sync part bdev's ->bd_has_submit_bio with disk's. Reported-by: Changhui Zhong <[email protected]> Link: https://lore.kernel.org/linux-block/[email protected]/T/#t Fixes: 9f4107b ("block: store bdev->bd_disk->fops->submit_bio state in bdev") Signed-off-by: Ming Lei <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
kawasaki · Apr 25, 2023 · 38c8e3d · 38c8e3d
1 parent 8379436
commit 38c8e3d
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/block/bdev.c b/block/bdev.c
@@ -418,8 +418,11 @@ struct block_device *bdev_alloc(struct gendisk *disk, u8 partno)
 	bdev->bd_partno = partno;
 	bdev->bd_inode = inode;
 	bdev->bd_queue = disk->queue;
+	if (partno)
+		bdev->bd_has_submit_bio = disk->part0->bd_has_submit_bio;
+	else
+		bdev->bd_has_submit_bio = false;
 	bdev->bd_stats = alloc_percpu(struct disk_stats);
-	bdev->bd_has_submit_bio = false;
 	if (!bdev->bd_stats) {
 		iput(inode);
 		return NULL;