xen: Move manage.c to drivers/xen for ia64/xen support

move arch/x86/xen/manage.c under drivers/xen/to share codes
with x86 and ia64.
ia64/xen also uses manage.c

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

2 files changed, 1 insertions, 144 deletions

diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile
index 3d8df981d5fd..40b119b6b103 100644
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Makefile
@@ -1,4 +1,4 @@
 obj-y		:= enlighten.o setup.o multicalls.o mmu.o \
-			time.o manage.o xen-asm.o grant-table.o
+			time.o xen-asm.o grant-table.o
 
 obj-$(CONFIG_SMP)	+= smp.o
diff --git a/arch/x86/xen/manage.c b/arch/x86/xen/manage.c
deleted file mode 100644
index aa7af9e6abc0..000000000000
--- a/arch/x86/xen/manage.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Handle extern requests for shutdown, reboot and sysrq
- */
-#include <linux/kernel.h>
-#include <linux/err.h>
-#include <linux/reboot.h>
-#include <linux/sysrq.h>
-
-#include <xen/xenbus.h>
-
-#define SHUTDOWN_INVALID  -1
-#define SHUTDOWN_POWEROFF  0
-#define SHUTDOWN_SUSPEND   2
-/* Code 3 is SHUTDOWN_CRASH, which we don't use because the domain can only
- * report a crash, not be instructed to crash!
- * HALT is the same as POWEROFF, as far as we're concerned.  The tools use
- * the distinction when we return the reason code to them.
- */
-#define SHUTDOWN_HALT      4
-
-/* Ignore multiple shutdown requests. */
-static int shutting_down = SHUTDOWN_INVALID;
-
-static void shutdown_handler(struct xenbus_watch *watch,
-			     const char **vec, unsigned int len)
-{
-	char *str;
-	struct xenbus_transaction xbt;
-	int err;
-
-	if (shutting_down != SHUTDOWN_INVALID)
-		return;
-
- again:
-	err = xenbus_transaction_start(&xbt);
-	if (err)
-		return;
-
-	str = (char *)xenbus_read(xbt, "control", "shutdown", NULL);
-	/* Ignore read errors and empty reads. */
-	if (XENBUS_IS_ERR_READ(str)) {
-		xenbus_transaction_end(xbt, 1);
-		return;
-	}
-
-	xenbus_write(xbt, "control", "shutdown", "");
-
-	err = xenbus_transaction_end(xbt, 0);
-	if (err == -EAGAIN) {
-		kfree(str);
-		goto again;
-	}
-
-	if (strcmp(str, "poweroff") == 0 ||
-	    strcmp(str, "halt") == 0)
-		orderly_poweroff(false);
-	else if (strcmp(str, "reboot") == 0)
-		ctrl_alt_del();
-	else {
-		printk(KERN_INFO "Ignoring shutdown request: %s\n", str);
-		shutting_down = SHUTDOWN_INVALID;
-	}
-
-	kfree(str);
-}
-
-static void sysrq_handler(struct xenbus_watch *watch, const char **vec,
-			  unsigned int len)
-{
-	char sysrq_key = '\0';
-	struct xenbus_transaction xbt;
-	int err;
-
- again:
-	err = xenbus_transaction_start(&xbt);
-	if (err)
-		return;
-	if (!xenbus_scanf(xbt, "control", "sysrq", "%c", &sysrq_key)) {
-		printk(KERN_ERR "Unable to read sysrq code in "
-		       "control/sysrq\n");
-		xenbus_transaction_end(xbt, 1);
-		return;
-	}
-
-	if (sysrq_key != '\0')
-		xenbus_printf(xbt, "control", "sysrq", "%c", '\0');
-
-	err = xenbus_transaction_end(xbt, 0);
-	if (err == -EAGAIN)
-		goto again;
-
-	if (sysrq_key != '\0')
-		handle_sysrq(sysrq_key, NULL);
-}
-
-static struct xenbus_watch shutdown_watch = {
-	.node = "control/shutdown",
-	.callback = shutdown_handler
-};
-
-static struct xenbus_watch sysrq_watch = {
-	.node = "control/sysrq",
-	.callback = sysrq_handler
-};
-
-static int setup_shutdown_watcher(void)
-{
-	int err;
-
-	err = register_xenbus_watch(&shutdown_watch);
-	if (err) {
-		printk(KERN_ERR "Failed to set shutdown watcher\n");
-		return err;
-	}
-
-	err = register_xenbus_watch(&sysrq_watch);
-	if (err) {
-		printk(KERN_ERR "Failed to set sysrq watcher\n");
-		return err;
-	}
-
-	return 0;
-}
-
-static int shutdown_event(struct notifier_block *notifier,
-			  unsigned long event,
-			  void *data)
-{
-	setup_shutdown_watcher();
-	return NOTIFY_DONE;
-}
-
-static int __init setup_shutdown_event(void)
-{
-	static struct notifier_block xenstore_notifier = {
-		.notifier_call = shutdown_event
-	};
-	register_xenstore_notifier(&xenstore_notifier);
-
-	return 0;
-}
-
-subsys_initcall(setup_shutdown_event);