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[PATCH] pgdat allocation for new node add (refresh node_data[])

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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>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Yasunori Goto 2006-06-27 02:53:33 -07:00 committed by Linus Torvalds
parent 306d6cbe86
commit 10ad400b49
2 changed files with 16 additions and 0 deletions
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4
arch/ia64/Kconfig
View file

@ -374,6 +374,10 @@ config HAVE_ARCH_EARLY_PFN_TO_NID
def_bool y
depends on NEED_MULTIPLE_NODES
config HAVE_ARCH_NODEDATA_EXTENSION
def_bool y
depends on NUMA
config IA32_SUPPORT
bool "Support for Linux/x86 binaries"
help

12
include/linux/memory_hotplug.h
View file

@ -91,6 +91,9 @@ static inline pg_data_t *arch_alloc_nodedata(int nid)
static inline void arch_free_nodedata(pg_data_t *pgdat)
{
}
static inline void arch_refresh_nodedata(int nid, pg_data_t *pgdat)
{
}
#else /* CONFIG_HAVE_ARCH_NODEDATA_EXTENSION */
@ -114,6 +117,12 @@ static inline void arch_free_nodedata(pg_data_t *pgdat)
*/
#define generic_free_nodedata(pgdat) kfree(pgdat)
extern pg_data_t *node_data[];
static inline void arch_refresh_nodedata(int nid, pg_data_t *pgdat)
{
node_data[nid] = pgdat;
}
#else /* !CONFIG_NUMA */
/* never called */
@ -125,6 +134,9 @@ static inline pg_data_t *generic_alloc_nodedata(int nid)
static inline void generic_free_nodedata(pg_data_t *pgdat)
{
}
static inline void arch_refresh_nodedata(int nid, pg_data_t *pgdat)
{
}
#endif /* CONFIG_NUMA */
#endif /* CONFIG_HAVE_ARCH_NODEDATA_EXTENSION */