[PATCH 5/8] x86_64 - Specify amount of kernel memory at boot time

[Mel Gorman <mel@csn.ul.ie>]

This patch adds the kernelcore= parameter for x64_64.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.17-rc3-mm1-zonesizing-104_ppc64coremem/arch/x86_64/kernel/setup.c linux-2.6.17-rc3-mm1-zonesizing-105_x8664coremem/arch/x86_64/kernel/setup.c
--- linux-2.6.17-rc3-mm1-zonesizing-104_ppc64coremem/arch/x86_64/kernel/setup.c	2006-05-03 09:42:16.000000000 +0100
+++ linux-2.6.17-rc3-mm1-zonesizing-105_x8664coremem/arch/x86_64/kernel/setup.c	2006-05-03 09:48:56.000000000 +0100
@@ -372,6 +372,12 @@ static __init void parse_cmdline_early (
 		if (!memcmp(from, "mem=", 4))
 			parse_memopt(from+4, &from); 
 
+		if (!memcmp(from, "kernelcore=", 11)) {
+			unsigned long core_pages;
+			core_pages = memparse(from+11, &from) >> PAGE_SHIFT;
+			set_required_kernelcore(core_pages);
+		}
+
 		if (!memcmp(from, "memmap=", 7)) {
 			/* exactmap option is for used defined memory */
 			if (!memcmp(from+7, "exactmap", 8)) {
-
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