In wait_task_stopped() exit_code already contains the right value for
the si_status member of siginfo, and this is simply set in the non
WNOWAIT case.
Pass it unchanged to wait_noreap_copyout(); we would only need to
shift it and add 0x7f if we were returning it in the user status field
and that isn't used for any function that permits WNOWAIT.
Signed-off-by: Scott James Remnant <[email protected]>
Signed-off-by: Oleg Nesterov <[email protected]>
Signed-off-by: Roland McGrath <[email protected]>
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1389,7 +1389,7 @@ static int wait_task_stopped(struct task_struct
*p, int delayed_group_leader,
if (unlikely(!exit_code) || unlikely(p->exit_state))
goto bail_ref;
return wait_noreap_copyout(p, pid, uid,
- why, (exit_code << 8) | 0x7f,
+ why, exit_code,
infop, ru);
}
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