From: Yasunori Goto <y-goto@jp.fujitsu.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Linux Kernel ML <linux-kernel@vger.kernel.org>,
linux-ia64@vger.kernel.org, "Luck, Tony" <tony.luck@intel.com>,
Andi Kleen <ak@suse.de>, linux-mm <linux-mm@kvack.org>
Subject: [PATCH: 008/017]Memory hotplug for new nodes v.4.(allocate pgdat for ia64)
Date: Fri, 17 Mar 2006 17:21:38 +0900 [thread overview]
Message-ID: <20060317163324.C647.Y-GOTO@jp.fujitsu.com> (raw)
This is a patch to allocate pgdat and per node data area for ia64.
The size for them can be calculated by compute_pernodesize().
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
arch/ia64/mm/discontig.c | 16 ++++++++++++++--
1 files changed, 14 insertions(+), 2 deletions(-)
Index: pgdat8/arch/ia64/mm/discontig.c
===================================================================
--- pgdat8.orig/arch/ia64/mm/discontig.c 2006-03-16 21:20:31.251828760 +0900
+++ pgdat8/arch/ia64/mm/discontig.c 2006-03-16 21:21:25.615109344 +0900
@@ -100,7 +100,7 @@ static int __init build_node_maps(unsign
* acpi_boot_init() (which builds the node_to_cpu_mask array) hasn't been
* called yet. Note that node 0 will also count all non-existent cpus.
*/
-static int __init early_nr_cpus_node(int node)
+static int __meminit early_nr_cpus_node(int node)
{
int cpu, n = 0;
@@ -115,7 +115,7 @@ static int __init early_nr_cpus_node(int
* compute_pernodesize - compute size of pernode data
* @node: the node id.
*/
-static unsigned long __init compute_pernodesize(int node)
+static unsigned long __meminit compute_pernodesize(int node)
{
unsigned long pernodesize = 0, cpus;
@@ -728,6 +728,18 @@ void __init paging_init(void)
zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page));
}
+pg_data_t *arch_alloc_nodedata(int nid)
+{
+ unsigned long size = compute_pernodesize(nid);
+
+ return kzalloc(size, GFP_KERNEL);
+}
+
+void arch_free_nodedata(pg_data_t *pgdat)
+{
+ kfree(pgdat);
+}
+
void arch_refresh_nodedata(int update_node, pg_data_t *update_pgdat)
{
pgdat_list[update_node] = update_pgdat;
--
Yasunori Goto
--
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reply other threads:[~2006-03-17 8:21 UTC|newest]
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