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authorEric W. Biederman <ebiederm@xmission.com>2005-07-26 11:45:31 -0600
committerLinus Torvalds <torvalds@g5.osdl.org>2005-07-26 14:35:42 -0700
commit62b3a04d75d2dc9480d5ad3b60f4258e548a6a83 (patch)
tree61c91a3fc9785346dd966249fb4acbe1feae1909
parent7c9a90073c75bffbb89763a0c7d44a2e44e9e628 (diff)
[PATCH] x86_64: Implemenent machine_emergency_restart
It is not safe to call set_cpus_allowed() in interrupt context and disabling the apics is complicated code. So unconditionally skip machine_shutdown in machine_emergency_reboot on x86_64. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--arch/x86_64/kernel/reboot.c18
-rw-r--r--include/asm-x86_64/emergency-restart.h2
2 files changed, 12 insertions, 8 deletions
diff --git a/arch/x86_64/kernel/reboot.c b/arch/x86_64/kernel/reboot.c
index d4c45ff92d5..3d1cc09406a 100644
--- a/arch/x86_64/kernel/reboot.c
+++ b/arch/x86_64/kernel/reboot.c
@@ -109,16 +109,10 @@ void machine_shutdown(void)
local_irq_enable();
}
-void machine_restart(char * __unused)
+void machine_emergency_restart(void)
{
int i;
- printk("machine restart\n");
-
- if (!reboot_force) {
- machine_shutdown();
- }
-
/* Tell the BIOS if we want cold or warm reboot */
*((unsigned short *)__va(0x472)) = reboot_mode;
@@ -143,6 +137,16 @@ void machine_restart(char * __unused)
}
}
+void machine_restart(char * __unused)
+{
+ printk("machine restart\n");
+
+ if (!reboot_force) {
+ machine_shutdown();
+ }
+ machine_emergency_restart();
+}
+
void machine_halt(void)
{
}
diff --git a/include/asm-x86_64/emergency-restart.h b/include/asm-x86_64/emergency-restart.h
index 108d8c48e42..680c3956334 100644
--- a/include/asm-x86_64/emergency-restart.h
+++ b/include/asm-x86_64/emergency-restart.h
@@ -1,6 +1,6 @@
#ifndef _ASM_EMERGENCY_RESTART_H
#define _ASM_EMERGENCY_RESTART_H
-#include <asm-generic/emergency-restart.h>
+extern void machine_emergency_restart(void);
#endif /* _ASM_EMERGENCY_RESTART_H */