From 9c416e76a57f961a41010dfcaccc7f48bfba6f6f Mon Sep 17 00:00:00 2001 From: Filipe Manana Date: Wed, 3 Sep 2025 16:53:21 +0100 Subject: [PATCH] btrfs: fix invalid extref key setup when replaying dentry [ Upstream commit b62fd63ade7cb573b114972ef8f9fa505be8d74a ] The offset for an extref item's key is not the object ID of the parent dir, otherwise we would not need the extref item and would use plain ref items. Instead the offset is the result of a hash computation that uses the object ID of the parent dir and the name associated to the entry. So fix this by setting the key offset at replay_one_name() to be the result of calling btrfs_extref_hash(). Fixes: 725af92a6251 ("btrfs: Open-code name_in_log_ref in replay_one_name") Signed-off-by: Filipe Manana Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Sasha Levin --- fs/btrfs/tree-log.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index f917fdae7e672..0022ad003791f 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -1946,7 +1946,7 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans, search_key.objectid = log_key.objectid; search_key.type = BTRFS_INODE_EXTREF_KEY; - search_key.offset = key->objectid; + search_key.offset = btrfs_extref_hash(key->objectid, name.name, name.len); ret = backref_in_log(root->log_root, &search_key, key->objectid, &name); if (ret < 0) { goto out; -- 2.47.3