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authorTejun Heo <tj@kernel.org>2011-07-12 11:44:22 +0400
committerH. Peter Anvin <hpa@linux.intel.com>2011-07-13 08:58:11 +0400
commitd0ead157387f19801beb1b419568723b2e9b7c79 (patch)
tree0615789f48d6ccd91036ddb5cb8fcdb3048ebe8a /arch/x86/include/asm/mmzone_32.h
parent620917de59eeb934b9f8cf35cc2d95c1ac8ed0fc (diff)
downloadlinux-d0ead157387f19801beb1b419568723b2e9b7c79.tar.xz
x86, mm: s/PAGES_PER_ELEMENT/PAGES_PER_SECTION/
DISCONTIGMEM on x86-32 implements pfn -> nid mapping similarly to SPARSEMEM; however, it calls each mapping unit ELEMENT instead of SECTION. This patch renames it to SECTION so that PAGES_PER_SECTION is valid for both DISCONTIGMEM and SPARSEMEM. This will be used by the next patch to implement mapping granularity check. This patch is trivial constant rename. Signed-off-by: Tejun Heo <tj@kernel.org> Link: http://lkml.kernel.org/r/20110712074422.GA2872@htj.dyndns.org Cc: Hans Rosenfeld <hans.rosenfeld@amd.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/include/asm/mmzone_32.h')
-rw-r--r--arch/x86/include/asm/mmzone_32.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/include/asm/mmzone_32.h b/arch/x86/include/asm/mmzone_32.h
index ffa037f28d39..55728e121473 100644
--- a/arch/x86/include/asm/mmzone_32.h
+++ b/arch/x86/include/asm/mmzone_32.h
@@ -34,15 +34,15 @@ static inline void resume_map_numa_kva(pgd_t *pgd) {}
* 64Gb / 4096bytes/page = 16777216 pages
*/
#define MAX_NR_PAGES 16777216
-#define MAX_ELEMENTS 1024
-#define PAGES_PER_ELEMENT (MAX_NR_PAGES/MAX_ELEMENTS)
+#define MAX_SECTIONS 1024
+#define PAGES_PER_SECTION (MAX_NR_PAGES/MAX_SECTIONS)
extern s8 physnode_map[];
static inline int pfn_to_nid(unsigned long pfn)
{
#ifdef CONFIG_NUMA
- return((int) physnode_map[(pfn) / PAGES_PER_ELEMENT]);
+ return((int) physnode_map[(pfn) / PAGES_PER_SECTION]);
#else
return 0;
#endif