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authorEric W. Biederman <ebiederm@xmission.com>2018-07-20 16:35:14 -0500
committerEric W. Biederman <ebiederm@xmission.com>2018-09-16 16:08:25 +0200
commit82058d6684658430cd9b4123d4c3e863fd48f813 (patch)
treeed23a1c404f61b6dc0d5408208835817ff335ee9 /kernel/pid_namespace.c
parenta8ebd17160ce364fac6647f223991a8f2f1924b9 (diff)
signal: Use group_send_sig_info to kill all processes in a pid namespace
Replace send_sig_info in zap_pid_ns_processes with group_send_sig_info. This makes more sense as the entire process group is being killed. More importantly this allows the kill of those processes with PIDTYPE_MAX to indicate all of the process in the pid namespace are being signaled. This is needed for fork to detect when signals are sent to a group of processes. Admittedly fork has another case to catch SIGKILL but the principle remains that it is desirable to know when a group of processes is being signaled. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'kernel/pid_namespace.c')
-rw-r--r--kernel/pid_namespace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index c8d53397bbdd..aa6e72fb7c08 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -216,7 +216,7 @@ void zap_pid_ns_processes(struct pid_namespace *pid_ns)
idr_for_each_entry_continue(&pid_ns->idr, pid, nr) {
task = pid_task(pid, PIDTYPE_PID);
if (task && !__fatal_signal_pending(task))
- send_sig_info(SIGKILL, SEND_SIG_PRIV, task);
+ group_send_sig_info(SIGKILL, SEND_SIG_PRIV, task, PIDTYPE_MAX);
}
read_unlock(&tasklist_lock);
rcu_read_unlock();

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