[PATCH: 005/017]Memory hotplug for new nodes v.4.(generic refresh NODE_DATA())

Yasunori Goto
2006-03-17T08:21:15Z

This function refresh NODE_DATA() for generic archs.
In this case, NODE_DATA(nid) = node_data[nid].
node_data[] is array of address of pgdat.
So, refresh is quite simple.

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>

include/linux/memory_hotplug.h | 12 ++++++++++++
1 files changed, 12 insertions(+)

Index: pgdat8/include/linux/memory_hotplug.h
=================================--- pgdat8.orig/include/linux/memory_hotplug.h 2006-03-17 13:53:23.914730042 +0900
+++ pgdat8/include/linux/memory_hotplug.h 2006-03-17 13:53:27.319026876 +0900
@@ -88,11 +88,14 @@ static inline int arch_nid_probe(u64 sta
*/
extern pg_data_t * arch_alloc_nodedata(int nid);
extern void arch_free_nodedata(pg_data_t *pgdat);
+extern void arch_refresh_nodedata(int nid, pg_data_t *pgdat);

#else /* CONFIG_HAVE_ARCH_NODEDATA_EXTENSION */

#define arch_alloc_nodedata(nid) generic_alloc_nodedata(nid)
#define arch_free_nodedata(pgdat) generic_free_nodedata(pgdat)
+#define arch_refresh_nodedata(nid, pgdat) \
+ generic_refresh_nodedata(nid, pgdat)

#ifdef CONFIG_NUMA
/*
@@ -111,6 +114,12 @@ extern void arch_free_nodedata(pg_data_t
*/
#define generic_free_nodedata(pgdat) kfree(pgdat)

+extern pg_data_t *node_data[];
+static inline void generic_refresh_nodedata(int nid, pg_data_t *pgdat)
+{
+ node_data[nid] = pgdat;
+}
+
#else /* !CONFIG_NUMA */

/* never called */
@@ -122,6 +131,9 @@ static inline pg_data_t *generic_alloc_n
static inline void generic_free_nodedata(pg_data_t *pgdat)
{
}
+static inline void generic_refresh_nodedata(int nid, pg_data_t *pgdat)
+{
+}
#endif /* CONFIG_NUMA */
#endif /* CONFIG_HAVE_ARCH_NODEDATA_EXTENSION */

--
Yasunori Goto