From: Zhang Xiaoxu zhangxiaoxu5@huawei.com
hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5JCAH CVE: NA
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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 --- 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 c4b386b2be97..859aae0a8683 100644 --- a/drivers/md/persistent-data/dm-btree-spine.c +++ b/drivers/md/persistent-data/dm-btree-spine.c @@ -30,6 +30,8 @@ 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,