Make it possible to pass boot()'s flags to shutdown_nice() so that the

kernel can instigate an orderly shutdown but still determine the form of
that shutdown.  Make it possible eg. to cleanly shutdown and power off the
system under ACPI when the power button is pressed.

1 files changed, 8 insertions, 1 deletions

diff --git a/sys/kern/kern_shutdown.c b/sys/kern/kern_shutdown.c
index cf8081f..258699e 100644
--- a/sys/kern/kern_shutdown.c
+++ b/sys/kern/kern_shutdown.c
@@ -150,9 +150,13 @@ reboot(p, uap)
 /*
  * Called by events that want to shut down.. e.g  <CTL><ALT><DEL> on a PC
  */
+static int shutdown_howto = 0;
+
 void
-shutdown_nice()
+shutdown_nice(int howto)
 {
+	shutdown_howto = howto;
+	
 	/* Send a signal to init(8) and have it shutdown the world */
 	if (initproc != NULL) {
 		psignal(initproc, SIGINT);
@@ -202,6 +206,9 @@ boot(howto)
 	int howto;
 {
 
+	/* collect extra flags that shutdown_nice might have set */
+	howto |= shutdown_howto;
+
 #ifdef SMP
 	if (smp_active) {
 		printf("boot() called on cpu#%d\n", cpuid);