From: Mel Gorman <mel@csn.ul.ie>
To: linux-mm@kvack.org
Cc: Mel Gorman <mel@csn.ul.ie>,
linux-kernel@vger.kernel.org, lhms-devel@lists.sourceforge.net
Subject: [PATCH 3/8] x86 - Specify amount of kernel memory at boot time
Date: Fri, 5 May 2006 18:35:46 +0100 (IST) [thread overview]
Message-ID: <20060505173546.9030.8449.sendpatchset@skynet> (raw)
In-Reply-To: <20060505173446.9030.42837.sendpatchset@skynet>
This patch adds the kernelcore= parameter for x86.
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-102_addzone/arch/i386/kernel/setup.c linux-2.6.17-rc3-mm1-zonesizing-103_x86coremem/arch/i386/kernel/setup.c
--- linux-2.6.17-rc3-mm1-zonesizing-102_addzone/arch/i386/kernel/setup.c 2006-05-03 09:42:16.000000000 +0100
+++ linux-2.6.17-rc3-mm1-zonesizing-103_x86coremem/arch/i386/kernel/setup.c 2006-05-03 09:47:22.000000000 +0100
@@ -943,6 +943,18 @@ static void __init parse_cmdline_early (
else if (!memcmp(from, "vmalloc=", 8))
__VMALLOC_RESERVE = memparse(from+8, &from);
+ /*
+ * kernelcore=size sets the amount of memory for use for
+ * kernel allocations that cannot be reclaimed easily.
+ * The remaining memory is set aside for easy reclaim
+ * for features like memory remove or huge page allocations
+ */
+ else if (!memcmp(from, "kernelcore=",11)) {
+ unsigned long core_pages;
+ core_pages = memparse(from+11, &from) >> PAGE_SHIFT;
+ set_required_kernelcore(core_pages);
+ }
+
next_char:
c = *(from++);
if (!c)
--
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next prev parent reply other threads:[~2006-05-05 17:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-05 17:34 [PATCH 0/8] Reducing fragmentation using zones v6 Mel Gorman
2006-05-05 17:35 ` [PATCH 1/8] Add __GFP_EASYRCLM flag and update callers Mel Gorman
2006-05-05 17:35 ` [PATCH 2/8] Create the ZONE_EASYRCLM zone Mel Gorman
2006-05-05 17:35 ` Mel Gorman [this message]
2006-05-05 17:36 ` [PATCH 4/8] ppc64 - Specify amount of kernel memory at boot time Mel Gorman
2006-05-05 17:36 ` [PATCH 5/8] x86_64 " Mel Gorman
2006-05-05 17:36 ` [PATCH 6/8] ia64 " Mel Gorman
2006-05-05 17:37 ` [PATCH 7/8] Allow HugeTLB allocations to use ZONE_EASYRCLM Mel Gorman
2006-05-05 17:37 ` [PATCH 8/8] Add documentation for extra boot parameters Mel Gorman
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