From 38c8e3dfb2a1be863b7f5aad7755d5e9727da8a5 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 25 Apr 2023 11:41:54 +0800 Subject: [PATCH] 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 Link: https://lore.kernel.org/linux-block/ZEdItaPqif8fp85H@ovpn-8-24.pek2.redhat.com/T/#t Fixes: 9f4107b07b17 ("block: store bdev->bd_disk->fops->submit_bio state in bdev") Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20230425034154.110099-1-ming.lei@redhat.com Signed-off-by: Jens Axboe --- block/bdev.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/block/bdev.c b/block/bdev.c index 717089a5726f..21c63bfef323 100644 --- 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;