[POC][PATCH 79/83] s390: turn suspend_zero_pages into a pointer

From: Al Viro
Date: Mon Dec 21 2015 - 18:48:51 EST


From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
arch/s390/kernel/entry.h | 2 +-
arch/s390/kernel/suspend.c | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h
index b7019ab..612b35c 100644
--- a/arch/s390/kernel/entry.h
+++ b/arch/s390/kernel/entry.h
@@ -7,7 +7,7 @@
#include <asm/idle.h>

extern void *restart_stack;
-extern unsigned long suspend_zero_pages;
+extern void *suspend_zero_pages;

void system_call(void);
void pgm_check_handler(void);
diff --git a/arch/s390/kernel/suspend.c b/arch/s390/kernel/suspend.c
index c40bdca..4ce1cc3 100644
--- a/arch/s390/kernel/suspend.c
+++ b/arch/s390/kernel/suspend.c
@@ -41,7 +41,7 @@ struct page_key_data {
static struct page_key_data *page_key_data;
static struct page_key_data *page_key_rp, *page_key_wp;
static unsigned long page_key_rx, page_key_wx;
-unsigned long suspend_zero_pages;
+void *suspend_zero_pages;

/*
* For each page in the hibernation image one additional byte is
@@ -163,13 +163,13 @@ static int suspend_pm_cb(struct notifier_block *nb, unsigned long action,
switch (action) {
case PM_SUSPEND_PREPARE:
case PM_HIBERNATION_PREPARE:
- suspend_zero_pages = __get_free_pages(GFP_KERNEL, LC_ORDER);
+ suspend_zero_pages = get_free_pages(GFP_KERNEL, LC_ORDER);
if (!suspend_zero_pages)
return NOTIFY_BAD;
break;
case PM_POST_SUSPEND:
case PM_POST_HIBERNATION:
- free_pages((void *)suspend_zero_pages, LC_ORDER);
+ free_pages(suspend_zero_pages, LC_ORDER);
break;
default:
return NOTIFY_DONE;
--
2.1.4

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