FT_SOCK 5942 fs/btrfs/inode.c BUILD_BUG_ON(BTRFS_FT_SOCK != FT_SOCK); FT_SOCK 15 fs/fs_types.c [FT_SOCK] = DT_SOCK, FT_SOCK 57 fs/fs_types.c [DT_SOCK] = FT_SOCK,