This commit was manufactured by cvs2svn to create tag

[linux-2.6.git] / kernel / sys.c

diff --git a/kernel/sys.c b/kernel/sys.c
index c69f6ed..6e8b073 100644 (file)
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -18,6 +18,8 @@
 #include <linux/init.h>
 #include <linux/highuid.h>
 #include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/kexec.h>
 #include <linux/workqueue.h>
 #include <linux/device.h>
 #include <linux/times.h>
@@ -511,6 +513,25 @@ asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, void __user
                machine_restart(buffer);
                break;
 
+#ifdef CONFIG_KEXEC
+       case LINUX_REBOOT_CMD_KEXEC:
+       {
+               struct kimage *image;
+               image = xchg(&kexec_image, 0);
+               if (!image) {
+                       unlock_kernel();
+                       return -EINVAL;
+               }
+               notifier_call_chain(&reboot_notifier_list, SYS_RESTART, NULL);
+               system_state = SYSTEM_RESTART;
+               device_shutdown();
+               system_state = SYSTEM_BOOTING;
+               printk(KERN_EMERG "Starting new kernel\n");
+               machine_shutdown();
+               machine_kexec(image);
+               break;
+       }
+#endif
 #ifdef CONFIG_SOFTWARE_SUSPEND
        case LINUX_REBOOT_CMD_SW_SUSPEND:
                {