linux-kernel - [PATCH 01/11] memblock: Rename current_limit to current_limit

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Message-Id: <1377596268-31552-2-git-send-email-tangchen@cn.fujitsu.com>
Date:	Tue, 27 Aug 2013 17:37:38 +0800
From:	Tang Chen <tangchen@...fujitsu.com>
To:	rjw@...k.pl, lenb@...nel.org, tglx@...utronix.de, mingo@...e.hu,
	hpa@...or.com, akpm@...ux-foundation.org, tj@...nel.org,
	trenn@...e.de, yinghai@...nel.org, jiang.liu@...wei.com,
	wency@...fujitsu.com, laijs@...fujitsu.com,
	isimatu.yasuaki@...fujitsu.com, izumi.taku@...fujitsu.com,
	mgorman@...e.de, minchan@...nel.org, mina86@...a86.com,
	gong.chen@...ux.intel.com, vasilis.liaskovitis@...fitbricks.com,
	lwoodman@...hat.com, riel@...hat.com, jweiner@...hat.com,
	prarit@...hat.com, zhangyanfei@...fujitsu.com
Cc:	x86@...nel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-acpi@...r.kernel.org
Subject: [PATCH 01/11] memblock: Rename current_limit to current_limit_high in memblock.

memblock.current_limit specifies the highest address that memblock
could allocate. The next coming patches will introduce a lowest
limit to memblock, so rename it to current_limit_high.

Signed-off-by: Tang Chen <tangchen@...fujitsu.com>
Reviewed-by: Zhang Yanfei <zhangyanfei@...fujitsu.com>
---
 include/linux/memblock.h |    2 +-
 mm/memblock.c            |   10 +++++-----
 mm/nobootmem.c           |    4 ++--
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index f388203..f0c0a91 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -35,7 +35,7 @@ struct memblock_type {
 };
 
 struct memblock {
-	phys_addr_t current_limit;
+	phys_addr_t current_limit_high;	/* upper boundary of accessable range */
 	struct memblock_type memory;
 	struct memblock_type reserved;
 };
diff --git a/mm/memblock.c b/mm/memblock.c
index a847bfe..ff2226f 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -32,7 +32,7 @@ struct memblock memblock __initdata_memblock = {
 	.reserved.cnt		= 1,	/* empty dummy entry */
 	.reserved.max		= INIT_MEMBLOCK_REGIONS,
 
-	.current_limit		= MEMBLOCK_ALLOC_ANYWHERE,
+	.current_limit_high	= MEMBLOCK_ALLOC_ANYWHERE,
 };
 
 int memblock_debug __initdata_memblock;
@@ -104,7 +104,7 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start,
 
 	/* pump up @end */
 	if (end == MEMBLOCK_ALLOC_ACCESSIBLE)
-		end = memblock.current_limit;
+		end = memblock.current_limit_high;
 
 	/* avoid allocating the first page */
 	start = max_t(phys_addr_t, start, PAGE_SIZE);
@@ -240,11 +240,11 @@ static int __init_memblock memblock_double_array(struct memblock_type *type,
 			new_area_start = new_area_size = 0;
 
 		addr = memblock_find_in_range(new_area_start + new_area_size,
-						memblock.current_limit,
+						memblock.current_limit_high,
 						new_alloc_size, PAGE_SIZE);
 		if (!addr && new_area_size)
 			addr = memblock_find_in_range(0,
-				min(new_area_start, memblock.current_limit),
+				min(new_area_start, memblock.current_limit_high),
 				new_alloc_size, PAGE_SIZE);
 
 		new_array = addr ? __va(addr) : NULL;
@@ -979,7 +979,7 @@ void __init_memblock memblock_trim_memory(phys_addr_t align)
 
 void __init_memblock memblock_set_current_limit(phys_addr_t limit)
 {
-	memblock.current_limit = limit;
+	memblock.current_limit_high = limit;
 }
 
 static void __init_memblock memblock_dump(struct memblock_type *type, char *name)
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 61107cf..8cc163c 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -38,8 +38,8 @@ static void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
 	void *ptr;
 	u64 addr;
 
-	if (limit > memblock.current_limit)
-		limit = memblock.current_limit;
+	if (limit > memblock.current_limit_high)
+		limit = memblock.current_limit_high;
 
 	addr = memblock_find_in_range_node(goal, limit, size, align, nid);
 	if (!addr)
-- 
1.7.1

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