Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6

[~andy/linux] / kernel / power / disk.c

diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index e24446f8d8cde234357837f7bbf9b740b3a88b34..d72234942798e6606d613cf6c99d5fc72ab40c09 100644 (file)
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -18,21 +18,11 @@
 #include <linux/fs.h>
 #include <linux/mount.h>
 #include <linux/pm.h>
+#include <linux/cpu.h>
 
 #include "power.h"
 
 
-extern suspend_disk_method_t pm_disk_mode;
-
-extern int swsusp_shrink_memory(void);
-extern int swsusp_suspend(void);
-extern int swsusp_write(struct pbe *pblist, unsigned int nr_pages);
-extern int swsusp_check(void);
-extern int swsusp_read(struct pbe **pblist_ptr);
-extern void swsusp_close(void);
-extern int swsusp_resume(void);
-
-
 static int noresume = 0;
 char resume_file[256] = CONFIG_PM_STD_PARTITION;
 dev_t swsusp_resume_device;
@@ -53,7 +43,7 @@ static void power_down(suspend_disk_method_t mode)
 
        switch(mode) {
        case PM_DISK_PLATFORM:
-               kernel_power_off_prepare();
+               kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK);
                error = pm_ops->enter(PM_SUSPEND_DISK);
                break;
        case PM_DISK_SHUTDOWN:
@@ -70,10 +60,6 @@ static void power_down(suspend_disk_method_t mode)
        while(1);
 }
 
-
-static int in_suspend __nosavedata = 0;
-
-
 static inline void platform_finish(void)
 {
        if (pm_disk_mode == PM_DISK_PLATFORM) {
@@ -87,26 +73,22 @@ static int prepare_processes(void)
        int error;
 
        pm_prepare_console();
-       sys_sync();
-       disable_nonboot_cpus();
+
+       error = disable_nonboot_cpus();
+       if (error)
+               goto enable_cpus;
 
        if (freeze_processes()) {
                error = -EBUSY;
                goto thaw;
        }
 
-       if (pm_disk_mode == PM_DISK_PLATFORM) {
-               if (pm_ops && pm_ops->prepare) {
-                       if ((error = pm_ops->prepare(PM_SUSPEND_DISK)))
-                               goto thaw;
-               }
-       }
-
        /* Free memory before shutting down devices. */
        if (!(error = swsusp_shrink_memory()))
                return 0;
 thaw:
        thaw_processes();
+enable_cpus:
        enable_nonboot_cpus();
        pm_restore_console();
        return error;
@@ -121,7 +103,7 @@ static void unprepare_processes(void)
 }
 
 /**
- *     pm_suspend_disk - The granpappy of power management.
+ *     pm_suspend_disk - The granpappy of hibernation power management.
  *
  *     If we're going through the firmware, then get it over with quickly.
  *
@@ -152,7 +134,7 @@ int pm_suspend_disk(void)
        if (in_suspend) {
                device_resume();
                pr_debug("PM: writing image.\n");
-               error = swsusp_write(pagedir_nosave, nr_copy_pages);
+               error = swsusp_write();
                if (!error)
                        power_down(pm_disk_mode);
                else {
@@ -223,14 +205,14 @@ static int software_resume(void)
 
        pr_debug("PM: Reading swsusp image.\n");
 
-       if ((error = swsusp_read(&pagedir_nosave))) {
+       if ((error = swsusp_read())) {
                swsusp_free();
                goto Thaw;
        }
 
        pr_debug("PM: Preparing devices for restore.\n");
 
-       if ((error = device_suspend(PMSG_FREEZE))) {
+       if ((error = device_suspend(PMSG_PRETHAW))) {
                printk("Some devices failed to suspend\n");
                swsusp_free();
                goto Thaw;
@@ -254,7 +236,7 @@ static int software_resume(void)
 late_initcall(software_resume);
 
 
-static char * pm_disk_modes[] = {
+static const char * const pm_disk_modes[] = {
        [PM_DISK_FIRMWARE]      = "firmware",
        [PM_DISK_PLATFORM]      = "platform",
        [PM_DISK_SHUTDOWN]      = "shutdown",
@@ -367,14 +349,14 @@ power_attr(resume);
 
 static ssize_t image_size_show(struct subsystem * subsys, char *buf)
 {
-       return sprintf(buf, "%u\n", image_size);
+       return sprintf(buf, "%lu\n", image_size);
 }
 
 static ssize_t image_size_store(struct subsystem * subsys, const char * buf, size_t n)
 {
-       unsigned int size;
+       unsigned long size;
 
-       if (sscanf(buf, "%u", &size) == 1) {
+       if (sscanf(buf, "%lu", &size) == 1) {
                image_size = size;
                return n;
        }