X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=kernel%2Fsignal.c;h=113411bfe8b1205ad0f26556776f2a317e06eb0c;hb=ba0922adbd2ccffe444608298ae0506401eac4c3;hp=598dc06be4214c7a11fbf128baff984fa9c1c4b5;hpb=8700c95adb033843fc163d112b9d21d4fda78018;p=firefly-linux-kernel-4.4.55.git

diff --git a/kernel/signal.c b/kernel/signal.c
index 598dc06be421..113411bfe8b1 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -32,6 +32,7 @@
 #include <linux/user_namespace.h>
 #include <linux/uprobes.h>
 #include <linux/compat.h>
+#include <linux/cn_proc.h>
 #define CREATE_TRACE_POINTS
 #include <trace/events/signal.h>
 
@@ -854,12 +855,14 @@ static void ptrace_trap_notify(struct task_struct *t)
  * Returns true if the signal should be actually delivered, otherwise
  * it should be dropped.
  */
-static int prepare_signal(int sig, struct task_struct *p, bool force)
+static bool prepare_signal(int sig, struct task_struct *p, bool force)
 {
 	struct signal_struct *signal = p->signal;
 	struct task_struct *t;
 
-	if (unlikely(signal->flags & SIGNAL_GROUP_EXIT)) {
+	if (signal->flags & (SIGNAL_GROUP_EXIT | SIGNAL_GROUP_COREDUMP)) {
+		if (signal->flags & SIGNAL_GROUP_COREDUMP)
+			return sig == SIGKILL;
 		/*
 		 * The process is in the middle of dying, nothing to do.
 		 */
@@ -1160,8 +1163,7 @@ static int send_signal(int sig, struct siginfo *info, struct task_struct *t,
 static void print_fatal_signal(int signr)
 {
 	struct pt_regs *regs = signal_pt_regs();
-	printk(KERN_INFO "%s/%d: potentially unexpected fatal signal %d.\n",
-		current->comm, task_pid_nr(current), signr);
+	printk(KERN_INFO "potentially unexpected fatal signal %d.\n", signr);
 
 #if defined(__i386__) && !defined(__arch_um__)
 	printk(KERN_INFO "code at %08lx: ", regs->ip);
@@ -2350,6 +2352,7 @@ relock:
 		if (sig_kernel_coredump(signr)) {
 			if (print_fatal_signals)
 				print_fatal_signal(info->si_signo);
+			proc_coredump_connector(current);
 			/*
 			 * If it was able to dump core, this kills all
 			 * other threads in the group and synchronizes with