lkml.org 
[lkml]   [2008]   [May]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] x86: extend e820 early_res support 32bit -fix #4
Date

reserve_early pgdata for 32bit numa

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>

Index: linux-2.6/arch/x86/mm/discontig_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/discontig_32.c
+++ linux-2.6/arch/x86/mm/discontig_32.c
@@ -159,8 +159,13 @@ static void __init allocate_pgdat(int ni
if (nid && node_has_online_mem(nid) && node_remap_start_vaddr[nid])
NODE_DATA(nid) = (pg_data_t *)node_remap_start_vaddr[nid];
else {
- NODE_DATA(nid) = (pg_data_t *)(pfn_to_kaddr(min_low_pfn));
- min_low_pfn += PFN_UP(sizeof(pg_data_t));
+ unsigned long pgdat_phys;
+ pgdat_phys = find_e820_area(min_low_pfn<<PAGE_SHIFT,
+ max_low_pfn<<PAGE_SHIFT, sizeof(pg_data_t),
+ PAGE_SIZE);
+ NODE_DATA(nid) = (pg_data_t *)(pfn_to_kaddr(pgdat_phys>>PAGE_SHIFT));
+ reserve_early(pgdat_phys, pgdat_phys + sizeof(pg_data_t),
+ "NODE_DATA");
}
}


\
 
 \ /
  Last update: 2008-05-29 22:03    [from the cache]
©2003-2011 Jasper Spaans