From 079b22dc9be985c591589fcb94769b8e13518aa0 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 3 Sep 2018 10:32:52 +0200 Subject: signal: Use SEND_SIG_PRIV not SEND_SIG_FORCED with SIGKILL and SIGSTOP Now that siginfo is never allocated for SIGKILL and SIGSTOP there is no difference between SEND_SIG_PRIV and SEND_SIG_FORCED for SIGKILL and SIGSTOP. This makes SEND_SIG_FORCED unnecessary and redundant in the presence of SIGKILL and SIGSTOP. Therefore change users of SEND_SIG_FORCED that are sending SIGKILL or SIGSTOP to use SEND_SIG_PRIV instead. This removes the last users of SEND_SIG_FORCED. Reviewed-by: Thomas Gleixner Signed-off-by: "Eric W. Biederman" --- kernel/ptrace.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'kernel/ptrace.c') diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 21fec73d45d4e..45f77a1b9c974 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -396,7 +396,7 @@ static int ptrace_attach(struct task_struct *task, long request, /* SEIZE doesn't trap tracee on attach */ if (!seize) - send_sig_info(SIGSTOP, SEND_SIG_FORCED, task); + send_sig_info(SIGSTOP, SEND_SIG_PRIV, task); spin_lock(&task->sighand->siglock); @@ -563,7 +563,7 @@ void exit_ptrace(struct task_struct *tracer, struct list_head *dead) list_for_each_entry_safe(p, n, &tracer->ptraced, ptrace_entry) { if (unlikely(p->ptrace & PT_EXITKILL)) - send_sig_info(SIGKILL, SEND_SIG_FORCED, p); + send_sig_info(SIGKILL, SEND_SIG_PRIV, p); if (__ptrace_detach(tracer, p)) list_add(&p->ptrace_entry, dead); -- cgit v1.2.3