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authorEric W. Biederman <ebiederm@xmission.com>2018-09-03 10:32:52 +0200
committerEric W. Biederman <ebiederm@xmission.com>2018-09-11 21:19:35 +0200
commit079b22dc9be985c591589fcb94769b8e13518aa0 (patch)
tree13212013fd3981735b99e3da4f15e7d89cea283e /kernel/ptrace.c
parentf149b31557446aff9ca96d4be7e39cc266f6e7cc (diff)
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 <tglx@linutronix.de> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'kernel/ptrace.c')
-rw-r--r--kernel/ptrace.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 21fec73d45d4..45f77a1b9c97 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);