Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=af370f...
Commit: af370fb8cb3031f20438f246798d5f0d98089f29
Parent: 48c906823f3927b981db9f0b03c2e2499977ee93
Author: Yasunori Goto <y-goto@jp.fujitsu.com>
AuthorDate: Wed Jul 23 21:28:17 2008 -0700
Committer: Linus Torvalds <torvalds@linux-foundation.org>
CommitDate: Thu Jul 24 10:47:21 2008 -0700
memory hotplug: small fixes to bootmem freeing for memory hotremove
- Change some naming
* Magic -> types
* MIX_INFO -> MIX_SECTION_INFO
* Change definition of bootmem type from direct hex value
- __free_pages_bootmem() becomes __meminit.
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Johannes Weiner <hannes@saeurebad.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/linux/memory_hotplug.h | 8 ++++----
mm/memory_hotplug.c | 12 ++++++------
mm/page_alloc.c | 2 +-
3 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index ea9f5ad..3628e50 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -13,12 +13,12 @@ struct mem_section;
#ifdef CONFIG_MEMORY_HOTPLUG
/*
- * Magic number for free bootmem.
+ * Types for free bootmem.
* The normal smallest mapcount is -1. Here is smaller value than it.
*/
-#define SECTION_INFO 0xfffffffe
-#define MIX_INFO 0xfffffffd
-#define NODE_INFO 0xfffffffc
+#define SECTION_INFO (-1 - 1)
+#define MIX_SECTION_INFO (-1 - 2)
+#define NODE_INFO (-1 - 3)
/*
* pgdat resizing functions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index ec85c37..0fb05b2 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -62,9 +62,9 @@ static void release_memory_resource(struct resource *res)
#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
#ifndef CONFIG_SPARSEMEM_VMEMMAP
-static void get_page_bootmem(unsigned long info, struct page *page, int magic)
+static void get_page_bootmem(unsigned long info, struct page *page, int type)
{
- atomic_set(&page->_mapcount, magic);
+ atomic_set(&page->_mapcount, type);
SetPagePrivate(page);
set_page_private(page, info);
atomic_inc(&page->_count);
@@ -72,10 +72,10 @@ static void get_page_bootmem(unsigned long info, struct page *page, int magic)
void put_page_bootmem(struct page *page)
{
- int magic;
+ int type;
- magic = atomic_read(&page->_mapcount);
- BUG_ON(magic >= -1);
+ type = atomic_read(&page->_mapcount);
+ BUG_ON(type >= -1);
if (atomic_dec_return(&page->_count) == 1) {
ClearPagePrivate(page);
@@ -119,7 +119,7 @@ static void register_page_bootmem_info_section(unsigned long start_pfn)
mapsize = PAGE_ALIGN(usemap_size()) >> PAGE_SHIFT;
for (i = 0; i < mapsize; i++, page++)
- get_page_bootmem(section_nr, page, MIX_INFO);
+ get_page_bootmem(section_nr, page, MIX_SECTION_INFO);
}
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index cd4c414..6da6672 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -533,7 +533,7 @@ static void __free_pages_ok(struct page *page, unsigned int order)
/*
* permit the bootmem allocator to evade page validation on high-order frees
*/
-void __free_pages_bootmem(struct page *page, unsigned int order)
+void __meminit __free_pages_bootmem(struct page *page, unsigned int order)
{
if (order == 0) {
__ClearPageReserved(page);
--
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