btrfs_set_inode_mode  163 fs/btrfs/free-space-cache.c 	btrfs_set_inode_mode(leaf, inode_item, S_IFREG | 0600);
btrfs_set_inode_mode 4257 fs/btrfs/relocation.c 	btrfs_set_inode_mode(leaf, item, S_IFREG | 0600);