linux-kernel - [PATCH 20/23] s390: Use HAVE_MEMBLOCK_NODE

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Message-Id: <1322508685-32532-21-git-send-email-tj@kernel.org>
Date:	Mon, 28 Nov 2011 11:31:22 -0800
From:	Tejun Heo <tj@...nel.org>
To:	benh@...nel.crashing.org, yinghai@...nel.org, hpa@...or.com,
	tony.luck@...el.com, ralf@...ux-mips.org, schwidefsky@...ibm.com,
	liqin.chen@...plusct.com, lethal@...ux-sh.org, davem@...emloft.net,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	mingo@...hat.com, jonas@...thpole.se, lennox.wu@...il.com
Cc:	Tejun Heo <tj@...nel.org>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	linux-s390@...r.kernel.org
Subject: [PATCH 20/23] s390: Use HAVE_MEMBLOCK_NODE_MAP

s390 used early_node_map[] just to prime free_area_init_nodes().  Now
memblock can be used for the same purpose and early_node_map[] is
scheduled to be dropped.  Use memblock instead.

Signed-off-by: Tejun Heo <tj@...nel.org>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Yinghai Lu <yinghai@...nel.org>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Cc: Heiko Carstens <heiko.carstens@...ibm.com>
Cc: linux-s390@...r.kernel.org
---
 arch/s390/Kconfig        |    3 +++
 arch/s390/kernel/setup.c |    4 +++-
 2 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 373679b..e383caf 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -92,6 +92,9 @@ config S390
 	select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
 	select HAVE_RCU_TABLE_FREE if SMP
 	select ARCH_SAVE_PAGE_KEYS if HIBERNATION
+	select HAVE_MEMBLOCK
+	select HAVE_MEMBLOCK_NODE_MAP
+	select ARCH_DISCARD_MEMBLOCK
 	select ARCH_INLINE_SPIN_TRYLOCK
 	select ARCH_INLINE_SPIN_TRYLOCK_BH
 	select ARCH_INLINE_SPIN_LOCK
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index e58a462..a2850df 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -21,6 +21,7 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
+#include <linux/memblock.h>
 #include <linux/mm.h>
 #include <linux/stddef.h>
 #include <linux/unistd.h>
@@ -820,7 +821,8 @@ setup_memory(void)
 		end_chunk = min(end_chunk, end_pfn);
 		if (start_chunk >= end_chunk)
 			continue;
-		add_active_range(0, start_chunk, end_chunk);
+		memblock_add_node(PFN_PHYS(start_chunk),
+				  PFN_PHYS(end_chunk - start_chunk), 0);
 		pfn = max(start_chunk, start_pfn);
 		for (; pfn < end_chunk; pfn++)
 			page_set_storage_key(PFN_PHYS(pfn),
-- 
1.7.3.1

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