Patchwork [RFC,v3,9/13] memory-hotplug : move register_page_bootmem_info_node and put_page_bootmem for sparse-vmemmap

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Submitter Yasuaki Ishimatsu
Date July 9, 2012, 10:30 a.m.
Message ID <4FFAB2CF.3050600@jp.fujitsu.com>
Download mbox | patch
Permalink /patch/169759/
State Not Applicable
Headers show

Comments

Yasuaki Ishimatsu - July 9, 2012, 10:30 a.m.
For implementing register_page_bootmem_info_node of sparse-vmemmap,
register_page_bootmem_info_node and put_page_bootmem are moved to
memory_hotplug.c

CC: David Rientjes <rientjes@google.com>
CC: Jiang Liu <liuj97@gmail.com>
CC: Len Brown <len.brown@intel.com>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Paul Mackerras <paulus@samba.org>
CC: Christoph Lameter <cl@linux.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
CC: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>

---
 include/linux/memory_hotplug.h |    9 ---------
 mm/memory_hotplug.c            |    8 ++++++--
 2 files changed, 6 insertions(+), 11 deletions(-)

Patch

Index: linux-3.5-rc4/include/linux/memory_hotplug.h
===================================================================
--- linux-3.5-rc4.orig/include/linux/memory_hotplug.h	2012-07-03 14:22:10.170116406 +0900
+++ linux-3.5-rc4/include/linux/memory_hotplug.h	2012-07-03 14:22:14.409063086 +0900
@@ -160,17 +160,8 @@  static inline void arch_refresh_nodedata
 #endif /* CONFIG_NUMA */
 #endif /* CONFIG_HAVE_ARCH_NODEDATA_EXTENSION */

-#ifdef CONFIG_SPARSEMEM_VMEMMAP
-static inline void register_page_bootmem_info_node(struct pglist_data *pgdat)
-{
-}
-static inline void put_page_bootmem(struct page *page)
-{
-}
-#else
 extern void register_page_bootmem_info_node(struct pglist_data *pgdat);
 extern void put_page_bootmem(struct page *page);
-#endif

 /*
  * Lock for memory hotplug guarantees 1) all callbacks for memory hotplug
Index: linux-3.5-rc4/mm/memory_hotplug.c
===================================================================
--- linux-3.5-rc4.orig/mm/memory_hotplug.c	2012-07-03 14:22:12.299089413 +0900
+++ linux-3.5-rc4/mm/memory_hotplug.c	2012-07-03 14:22:14.419062959 +0900
@@ -91,7 +91,6 @@  static void release_memory_resource(stru
 }

 #ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
-#ifndef CONFIG_SPARSEMEM_VMEMMAP
 static void get_page_bootmem(unsigned long info,  struct page *page,
 			     unsigned long type)
 {
@@ -127,6 +126,7 @@  void __ref put_page_bootmem(struct page

 }

+#ifndef CONFIG_SPARSEMEM_VMEMMAP
 static void register_page_bootmem_info_section(unsigned long start_pfn)
 {
 	unsigned long *usemap, mapsize, section_nr, i;
@@ -163,6 +163,11 @@  static void register_page_bootmem_info_s
 		get_page_bootmem(section_nr, page, MIX_SECTION_INFO);

 }
+#else
+static inline void register_page_bootmem_info_section(unsigned long start_pfn)
+{
+}
+#endif

 void register_page_bootmem_info_node(struct pglist_data *pgdat)
 {
@@ -198,7 +203,6 @@  void register_page_bootmem_info_node(str
 		register_page_bootmem_info_section(pfn);

 }
-#endif /* !CONFIG_SPARSEMEM_VMEMMAP */

 static void grow_zone_span(struct zone *zone, unsigned long start_pfn,
 			   unsigned long end_pfn)