I see no reason why waitid() can't support other linux-specific flags allowed in sys_wait4().
In particular this change can help if we reconsider the previous change which adds the "automagical" __WALL for debugger. Signed-off-by: Oleg Nesterov <[email protected]> --- kernel/exit.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/exit.c b/kernel/exit.c index c112abb..9db1f4a 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1533,7 +1533,8 @@ SYSCALL_DEFINE5(waitid, int, which, pid_t, upid, struct siginfo __user *, enum pid_type type; long ret; - if (options & ~(WNOHANG|WNOWAIT|WEXITED|WSTOPPED|WCONTINUED)) + if (options & ~(WNOHANG|WNOWAIT|WEXITED|WSTOPPED|WCONTINUED| + __WNOTHREAD|__WCLONE|__WALL)) return -EINVAL; if (!(options & (WEXITED|WSTOPPED|WCONTINUED))) return -EINVAL; -- 2.5.0
