| Message ID | 20171103082806.22448-4-lufq.fnst@cn.fujitsu.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/cmds-check.c b/cmds-check.c index 5750bb72..a93ac2c8 100644 --- a/cmds-check.c +++ b/cmds-check.c @@ -12468,7 +12468,8 @@ static int check_extent_data_backref(struct btrfs_fs_info *fs_info, leaf = path.nodes[0]; slot = path.slots[0]; - if (slot >= btrfs_header_nritems(leaf)) + if (slot >= btrfs_header_nritems(leaf) || + btrfs_header_owner(leaf) != root_id) goto next; btrfs_item_key_to_cpu(leaf, &key, slot); if (key.objectid != objectid || key.type != BTRFS_EXTENT_DATA_KEY)
The normal back reference counting doesn't care about the extent referred by the extent data in the shared leaf. The check_extent_data_backref function need to skip the leaf that owner mismatch with the root_id. Reported-by: Marc MERLIN <marc@merlins.org> Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com> --- cmds-check.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)