From: Zhang Xiaoxu zhangxiaoxu5@huawei.com

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5JCAH

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The BUG_ON is unneed Since f73e2e70ec48 ("dm btree spine: remove paranoid node_check call in node_prep_for_write()") merged in v5.13.

For debug reason, we also want to know the data on disk is corrupted by write or disk fault. So also add check and print some info when data corrupted.

Signed-off-by: Zhang Xiaoxu zhangxiaoxu5@huawei.com Reviewed-by: Hou Tao houtao1@huawei.com Reviewed-by: Jason Yan yanaijie@huawei.com Signed-off-by: Yongqiang Liu liuyongqiang13@huawei.com Reviewed-by: Zhang Xiaoxu zhangxiaoxu5@huawei.com Reviewed-by: Hou Tao houtao1@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com Signed-off-by: Li Lingfeng lilingfeng3@huawei.com --- drivers/md/persistent-data/dm-btree-spine.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/md/persistent-data/dm-btree-spine.c b/drivers/md/persistent-data/dm-btree-spine.c index 7540383b7cf3..418cac548ce6 100644 --- a/drivers/md/persistent-data/dm-btree-spine.c +++ b/drivers/md/persistent-data/dm-btree-spine.c @@ -27,6 +27,8 @@ static void node_prepare_for_write(struct dm_block_validator *v, h->csum = cpu_to_le32(dm_bm_checksum(&h->flags, block_size - sizeof(__le32), BTREE_CSUM_XOR)); + if (node_check(v, b, 4096)) + DMWARN_LIMIT("%s node_check failed", __func__); }

static int node_check(struct dm_block_validator *v,