netdev - [PATCH v3, part4 09/39] mm: use totalram_pages instead of num

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Message-Id: <1364313298-17336-10-git-send-email-jiang.liu@huawei.com>
Date:	Tue, 26 Mar 2013 23:54:28 +0800
From:	Jiang Liu <liuj97@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	David Rientjes <rientjes@...gle.com>
Cc:	Jiang Liu <jiang.liu@...wei.com>,
	Wen Congyang <wency@...fujitsu.com>,
	Mel Gorman <mgorman@...e.de>, Minchan Kim <minchan@...nel.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Michal Hocko <mhocko@...e.cz>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	David Howells <dhowells@...hat.com>,
	Mark Salter <msalter@...hat.com>,
	Jianguo Wu <wujianguo@...wei.com>, linux-mm@...ck.org,
	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
	Miklos Szeredi <miklos@...redi.hu>,
	"David S. Miller" <davem@...emloft.net>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	James Morris <jmorris@...ei.org>,
	Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
	Patrick McHardy <kaber@...sh.net>,
	fuse-devel@...ts.sourceforge.net, netdev@...r.kernel.org
Subject: [PATCH v3, part4 09/39] mm: use totalram_pages instead of num_physpages at runtime

The global variable num_physpages is scheduled to be removed, so use
totalram_pages instead of num_physpages at runtime.

Signed-off-by: Jiang Liu <jiang.liu@...wei.com>
Cc: Miklos Szeredi <miklos@...redi.hu>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Alexey Kuznetsov <kuznet@....inr.ac.ru>
Cc: James Morris <jmorris@...ei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>
Cc: Patrick McHardy <kaber@...sh.net>
Cc: fuse-devel@...ts.sourceforge.net
Cc: linux-kernel@...r.kernel.org
Cc: netdev@...r.kernel.org
---
Hi all,
	Sorry for my mistake that my previous patch series has been screwed up.
So I regenerate a third version and also set up a git tree at:
	git://github.com/jiangliu/linux.git mem_init
	Any help to review and test are welcomed!

	Regards!
	Gerry
---
 fs/fuse/inode.c          |    2 +-
 kernel/power/snapshot.c  |    4 ++--
 net/ipv4/inet_fragment.c |    2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index b730fda..4c2a420 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -781,7 +781,7 @@ static const struct super_operations fuse_super_operations = {
 static void sanitize_global_limit(unsigned *limit)
 {
 	if (*limit == 0)
-		*limit = ((num_physpages << PAGE_SHIFT) >> 13) /
+		*limit = ((totalram_pages << PAGE_SHIFT) >> 13) /
 			 sizeof(struct fuse_req);
 
 	if (*limit >= 1 << 16)
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 0de2857..8b5d1cd 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -1651,7 +1651,7 @@ unsigned long snapshot_get_image_size(void)
 static int init_header(struct swsusp_info *info)
 {
 	memset(info, 0, sizeof(struct swsusp_info));
-	info->num_physpages = num_physpages;
+	info->num_physpages = get_num_physpages();
 	info->image_pages = nr_copy_pages;
 	info->pages = snapshot_get_image_size();
 	info->size = info->pages;
@@ -1795,7 +1795,7 @@ static int check_header(struct swsusp_info *info)
 	char *reason;
 
 	reason = check_image_kernel(info);
-	if (!reason && info->num_physpages != num_physpages)
+	if (!reason && info->num_physpages != get_num_physpages())
 		reason = "memory size";
 	if (reason) {
 		printk(KERN_ERR "PM: Image mismatch: %s\n", reason);
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 4750d2b..87c4b09 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -60,7 +60,7 @@ void inet_frags_init(struct inet_frags *f)
 
 	rwlock_init(&f->lock);
 
-	f->rnd = (u32) ((num_physpages ^ (num_physpages>>7)) ^
+	f->rnd = (u32) ((totalram_pages ^ (totalram_pages >> 7)) ^
 				   (jiffies ^ (jiffies >> 6)));
 
 	setup_timer(&f->secret_timer, inet_frag_secret_rebuild,
-- 
1.7.9.5

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