1 files changed, 25 insertions, 24 deletions

diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
index e7ff9e1670f6..f7478cc3572d 100644
--- a/drivers/misc/sgi-xp/xpc_main.c
+++ b/drivers/misc/sgi-xp/xpc_main.c
@@ -43,19 +43,13 @@
  *
  */
 
-#include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/init.h>
-#include <linux/cache.h>
-#include <linux/interrupt.h>
+#include <linux/sysctl.h>
+#include <linux/device.h>
 #include <linux/delay.h>
 #include <linux/reboot.h>
-#include <linux/completion.h>
 #include <linux/kdebug.h>
 #include <linux/kthread.h>
-#include <linux/uaccess.h>
-#include <asm/sn/intr.h>
-#include <asm/sn/sn_sal.h>
 #include "xpc.h"
 
 /* define two XPC debug device structures to be used with dev_dbg() et al */
@@ -175,6 +169,8 @@ static struct notifier_block xpc_die_notifier = {
         .notifier_call = xpc_system_die,
 };
 
+enum xp_retval (*xpc_get_partition_rsvd_page_pa) (u64 buf, u64 *cookie,
+                                                  u64 *paddr, size_t *len);
 enum xp_retval (*xpc_rsvd_page_init) (struct xpc_rsvd_page *rp);
 void (*xpc_heartbeat_init) (void);
 void (*xpc_heartbeat_exit) (void);
@@ -920,7 +916,8 @@ xpc_die_deactivate(void)
         struct xpc_partition *part;
         short partid;
         int any_engaged;
-        long time, printmsg_time, disengage_timeout;
+        long keep_waiting;
+        long wait_to_print;
 
         /* keep xpc_hb_checker thread from doing anything (just in case) */
         xpc_exiting = 1;
@@ -937,16 +934,17 @@ xpc_die_deactivate(void)
                 }
         }
 
-        time = rtc_time();
-        printmsg_time = time +
-            (XPC_DEACTIVATE_PRINTMSG_INTERVAL * sn_rtc_cycles_per_second);
-        disengage_timeout = time +
-            (xpc_disengage_timelimit * sn_rtc_cycles_per_second);
-
         /*
          * Though we requested that all other partitions deactivate from us,
-         * we only wait until they've all disengaged.
+         * we only wait until they've all disengaged or we've reached the
+         * defined timelimit.
+         *
+         * Given that one iteration through the following while-loop takes
+         * approximately 200 microseconds, calculate the #of loops to take
+         * before bailing and the #of loops before printing a waiting message.
          */
+        keep_waiting = xpc_disengage_timelimit * 1000 * 5;
+        wait_to_print = XPC_DEACTIVATE_PRINTMSG_INTERVAL * 1000 * 5;
 
         while (1) {
                 any_engaged = xpc_any_partition_engaged();
@@ -955,8 +953,7 @@ xpc_die_deactivate(void)
                         break;
                 }
 
-                time = rtc_time();
-                if (time >= disengage_timeout) {
+                if (!keep_waiting--) {
                         for (partid = 0; partid < xp_max_npartitions;
                              partid++) {
                                 if (xpc_partition_engaged(partid)) {
@@ -968,15 +965,15 @@ xpc_die_deactivate(void)
                         break;
                 }
 
-                if (time >= printmsg_time) {
+                if (!wait_to_print--) {
                         dev_info(xpc_part, "waiting for remote partitions to "
                                  "deactivate, timeout in %ld seconds\n",
-                                 (disengage_timeout - time) /
-                                 sn_rtc_cycles_per_second);
-                        printmsg_time = time +
-                            (XPC_DEACTIVATE_PRINTMSG_INTERVAL *
-                             sn_rtc_cycles_per_second);
+                                 keep_waiting / (1000 * 5));
+                        wait_to_print = XPC_DEACTIVATE_PRINTMSG_INTERVAL *
+                            1000 * 5;
                 }
+
+                udelay(200);
         }
 }
 
@@ -991,6 +988,7 @@ xpc_die_deactivate(void)
 static int
 xpc_system_die(struct notifier_block *nb, unsigned long event, void *unused)
 {
+#ifdef CONFIG_IA64              /* !!! temporary kludge */
         switch (event) {
         case DIE_MACHINE_RESTART:
         case DIE_MACHINE_HALT:
@@ -1019,6 +1017,9 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *unused)
                 xpc_online_heartbeat();
                 break;
         }
+#else
+        xpc_die_deactivate();
+#endif
 
         return NOTIFY_DONE;
 }