This is to register NODE_DATA() macro for ia64.
Ia64's node_data[] arrays are copied ON EACH NODES,
So, they must be updated all at once.
This use stop_machine_run() for safety update of them.
Other archtecture doen't need like this code....
Signed-off-by: Yasunori Goto <[email protected]>
Index: pgdat2/arch/ia64/mm/discontig.c
===================================================================
--- pgdat2.orig/arch/ia64/mm/discontig.c 2006-02-10 17:22:18.000000000 +0900
+++ pgdat2/arch/ia64/mm/discontig.c 2006-02-10 19:54:57.000000000 +0900
@@ -21,6 +21,7 @@
#include <linux/acpi.h>
#include <linux/efi.h>
#include <linux/nodemask.h>
+#include <linux/stop_machine.h>
#include <asm/pgalloc.h>
#include <asm/tlb.h>
#include <asm/meminit.h>
@@ -114,11 +115,12 @@ 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;
+ unsigned long pernodesize = 0, cpus = 0;
- cpus = early_nr_cpus_node(node);
+ if (system_state == SYSTEM_BOOTING)
+ cpus = early_nr_cpus_node(node);
pernodesize += PERCPU_PAGE_SIZE * cpus;
pernodesize += node * L1_CACHE_BYTES;
pernodesize += L1_CACHE_ALIGN(sizeof(pg_data_t));
@@ -753,3 +755,71 @@ void __init paging_init(void)
zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page));
}
+
+#ifdef CONFIG_MEMORY_HOTPLUG
+unsigned long arch_pernode_size(int nid)
+{
+ return compute_pernodesize(nid);
+}
+
+/*
+ * NODE_DATA() array is replicated on each node as pg_data_ptrs[].
+ * So, all of them must be updated.
+ * This update is done when other cpu is stopped.
+ */
+static int __set_node_data_array(void *_pgdat)
+{
--
Yasunori Goto
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
