diff options
| author | Lu Fengqi <lufq.fnst@cn.fujitsu.com> | 2017-11-03 16:28:05 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-11-14 15:59:01 +0100 |
| commit | 29379da543da18f40f0a780bd61823316968607c (patch) | |
| tree | 0ae93881ac664d1631e82a40c92d85e6ea4e145f /cmds-check.c | |
| parent | faaf70f1cc7ade1d6d5a41a900a3b58cc4bd5f58 (diff) | |
btrfs-progs: lowmem check: Fix false alert about referencer count mismatch
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>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'cmds-check.c')
| -rw-r--r-- | cmds-check.c | 3 |
1 files changed, 2 insertions, 1 deletions
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) |