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| author | Scott James Remnant <scott@ubuntu.com> | 2007-11-28 16:22:07 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-11-29 09:24:55 -0800 |
| commit | e6ceb32aa25fc33f21af84cc7a32fe289b3e860c (patch) | |
| tree | 6a7684a5ac0f841a0bb85ce3a679e5836bd0e2df /kernel | |
| parent | 14816b1e2b0eb24ef41dbe37dcb558338e54a603 (diff) | |
| download | linux-e6ceb32aa25fc33f21af84cc7a32fe289b3e860c.tar.bz2 | |
wait_task_stopped(): pass correct exit_code to wait_noreap_copyout()
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.
If you call waitid() with a stopped or traced process, you'll get the signal
in siginfo.si_status as expected -- however if you call waitid(WNOWAIT) at the
same time, you'll get the signal << 8 | 0x7f
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 <scott@ubuntu.com>
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/exit.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/exit.c b/kernel/exit.c index 0a4a382ecf23..549c0558ba68 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1388,7 +1388,7 @@ 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); } |