linux-kernel - [POC][PATCH 79/83] s390: turn suspend_zero

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Message-Id: <1450741676-5865-79-git-send-email-viro@ZenIV.linux.org.uk>
Date:	Mon, 21 Dec 2015 23:47:52 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	linux-kernel@...r.kernel.org
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [POC][PATCH 79/83] s390: turn suspend_zero_pages into a pointer

From: Al Viro <viro@...iv.linux.org.uk>

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 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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