From a5481280b29b6a3db912ec100498bd31eaa6d2db Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yhlu.kernel@gmail.com>
Date: Thu, 29 May 2008 12:58:37 -0700
Subject: x86: extend e820 early_res support 32bit -fix #5

reserve early numa kva, so it will not clash with new RAMDISK

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/mm/discontig_32.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

(limited to 'arch/x86/mm')

diff --git a/arch/x86/mm/discontig_32.c b/arch/x86/mm/discontig_32.c
index 47749727907e..55fdbab6b014 100644
--- a/arch/x86/mm/discontig_32.c
+++ b/arch/x86/mm/discontig_32.c
@@ -357,6 +357,11 @@ unsigned long __init setup_memory(void)
 	printk("kva_start_pfn ~ %ld find_max_low_pfn() ~ %ld\n",
 		kva_start_pfn, max_low_pfn);
 	printk("max_pfn = %ld\n", max_pfn);
+
+	/* avoid clash with initrd */
+	reserve_early(kva_start_pfn<<PAGE_SHIFT,
+		      (kva_start_pfn + kva_pages)<<PAGE_SHIFT,
+		     "KVA PG");
 #ifdef CONFIG_HIGHMEM
 	highstart_pfn = highend_pfn = max_pfn;
 	if (max_pfn > system_max_low_pfn)
@@ -392,13 +397,6 @@ unsigned long __init setup_memory(void)
 	return max_low_pfn;
 }
 
-void __init numa_kva_reserve(void)
-{
-	if (kva_pages)
-		reserve_bootmem(PFN_PHYS(kva_start_pfn), PFN_PHYS(kva_pages),
-				BOOTMEM_DEFAULT);
-}
-
 void __init zone_sizes_init(void)
 {
 	int nid;
-- 
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