[SPARSEMEM] confusing uses of SPARSEM_EXTREME

[SPARSEMEM] confusing uses of SPARSEM_EXTREME

[Franck Bui-Huu]

Is it me or the use of CONFIG_SPARSEMEM_EXTREME is really confusing in
mm/sparce.c ? Shouldn't we use CONFIG_SPARSEMEM_STATIC instead like
the following patch suggests ?

-- >8 --
Subject: [PATCH] Remove confusing uses of SPARSEMEM_EXTREME

CONFIG_SPARSEMEM_EXTREME is used in sparce.c whereas
CONFIG_SPARSEMEM_STATIC seems to be more appropriate.

Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> 

---

include/linux/mmzone.h |    2 +-
mm/sparse.c            |    6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index ebfc238..35f38b0 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -551,7 +551,7 @@ #define SECTION_NR_TO_ROOT(sec)	((sec) /
 #define NR_SECTION_ROOTS	(NR_MEM_SECTIONS / SECTIONS_PER_ROOT)
 #define SECTION_ROOT_MASK	(SECTIONS_PER_ROOT - 1)
 
-#ifdef CONFIG_SPARSEMEM_EXTREME
+#ifndef CONFIG_SPARSEMEM_STATIC
 extern struct mem_section *mem_section[NR_SECTION_ROOTS];
 #else
 extern struct mem_section mem_section[NR_SECTION_ROOTS][SECTIONS_PER_ROOT];
diff --git a/mm/sparse.c b/mm/sparse.c
index 0a51f36..341d935 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -16,7 +16,7 @@ #include <asm/dma.h>
  *
  * 1) mem_section	- memory sections, mem_map's for valid memory
  */
-#ifdef CONFIG_SPARSEMEM_EXTREME
+#ifndef CONFIG_SPARSEMEM_STATIC
 struct mem_section *mem_section[NR_SECTION_ROOTS]
 	____cacheline_internodealigned_in_smp;
 #else
@@ -25,7 +25,7 @@ struct mem_section mem_section[NR_SECTIO
 #endif
 EXPORT_SYMBOL(mem_section);
 
-#ifdef CONFIG_SPARSEMEM_EXTREME
+#ifndef CONFIG_SPARSEMEM_STATIC
 static struct mem_section *sparse_index_alloc(int nid)
 {
 	struct mem_section *section = NULL;
@@ -67,7 +67,7 @@ out:
 	spin_unlock(&index_init_lock);
 	return ret;
 }
-#else /* !SPARSEMEM_EXTREME */
+#else /* SPARSEMEM_STATIC */
 static inline int sparse_index_init(unsigned long section_nr, int nid)
 {
 	return 0;
-- 
1.3.3.g8701

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