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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 <czhong@redhat.com>
Link: https://lore.kernel.org/linux-block/ZEdItaPqif8fp85H@ovpn-8-24.pek2.redhat.com/T/#t
Fixes: 9f4107b07b ("block: store bdev->bd_disk->fops->submit_bio state in bdev")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20230425034154.110099-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Ming Lei 2023-04-25 11:41:54 +08:00 committed by Jens Axboe
parent 83794367dc
commit 38c8e3dfb2
1 changed files with 4 additions and 1 deletions
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block/bdev.c
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@ -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;