From: Ravikiran G Thirumalai <kiran@scalex86.org>
Date: Thu, 29 Dec 2005 12:06:11 +0000 (+0100)
Subject: [PATCH] x86_64: Fix incorrect node_present_pages on NUMA
X-Git-Tag: v3.12-rc1~40074^2~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=576fc0978b6b3673fce6d4b405f36449e508826c;p=kernel%2Fkernel-generic.git

[PATCH] x86_64: Fix incorrect node_present_pages on NUMA

Currently, we do not pass the correct start_pfn to e820_hole_size, to
calculate holes.  Following patch fixes that.

The bug results in incorrect number of node_present_pages for each pgdat
and causes ugly output in /sys and probably VM inbalances.

Signed-off-by: Alok N Kataria <alokk@calsoftinc.com>
Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Sighed-off-by: Shair Fultheim <shai@scalex86.org>
Sighed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c
index 286f6a6..c016dfe 100644
--- a/arch/x86_64/mm/init.c
+++ b/arch/x86_64/mm/init.c
@@ -348,7 +348,7 @@ size_zones(unsigned long *z, unsigned long *h,
 	}
 
 	/* Compute holes */
-	w = 0;
+	w = start_pfn;
 	for (i = 0; i < MAX_NR_ZONES; i++) {
 		unsigned long s = w;
 		w += z[i];