From b16503baa8912a5ec5f599914bfdad898588540f Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sat, 21 Jul 2018 11:35:55 -0500 Subject: [PATCH] signal: send_sig_all no longer needs SEND_SIG_FORCED Now that send_signal always delivers SEND_SIG_PRIV signals to a pid namespace init it is no longer necessary to use SEND_SIG_FORCED when calling do_send_sig_info to ensure that pid namespace inits are signaled and possibly killed. Using SEND_SIG_PRIV is sufficient. So use SEND_SIG_PRIV so that userspace when it receives a SIGTERM can tell that the kernel sent the signal and not some random userspace application. Fixes: b82c32872db2 ("sysrq: use SEND_SIG_FORCED instead of force_sig()") Reviewed-by: Thomas Gleixner Signed-off-by: "Eric W. Biederman" --- drivers/tty/sysrq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c index 06ed20dd01ba..ad1ee5d01b53 100644 --- a/drivers/tty/sysrq.c +++ b/drivers/tty/sysrq.c @@ -348,7 +348,7 @@ static void send_sig_all(int sig) if (is_global_init(p)) continue; - do_send_sig_info(sig, SEND_SIG_FORCED, p, PIDTYPE_MAX); + do_send_sig_info(sig, SEND_SIG_PRIV, p, PIDTYPE_MAX); } read_unlock(&tasklist_lock); }