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Message-Id: <20220518225355.784371-10-ebiederm@xmission.com>
Date: Wed, 18 May 2022 17:53:49 -0500
From: "Eric W. Biederman" <ebiederm@...ssion.com>
To: linux-kernel@...r.kernel.org
Cc: rjw@...ysocki.net, Oleg Nesterov <oleg@...hat.com>,
mingo@...nel.org, vincent.guittot@...aro.org,
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Michael Ellerman <mpe@...erman.id.au>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Paul Mackerras <paulus@...ba.org>,
"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: [PATCH 10/16] ptrace: In ptrace_signal look at what the debugger did with siginfo
Now that siginfo is only modified by the tracer and that siginfo is
cleared with the signal is canceled have ptrace_signal directly examine
siginfo.
This makes the code a little simpler and handles the case when
the tracer exits without calling ptrace_detach.
Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>
---
kernel/signal.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/signal.c b/kernel/signal.c
index ff4a52352390..3d955c23b13d 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2556,9 +2556,10 @@ static int ptrace_signal(int signr, kernel_siginfo_t *info, enum pid_type type)
* comment in dequeue_signal().
*/
current->jobctl |= JOBCTL_STOP_DEQUEUED;
- signr = ptrace_stop(signr, CLD_TRAPPED, 0, info);
+ ptrace_stop(signr, CLD_TRAPPED, 0, info);
/* We're back. Did the debugger cancel the sig? */
+ signr = info->si_signo;
if (signr == 0)
return signr;
--
2.35.3
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