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Commit 10ad400b authored by Yasunori Goto's avatar Yasunori Goto Committed by Linus Torvalds
Browse files

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



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: default avatarYasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: default avatarKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 306d6cbe

arch/ia64/Kconfig

+4 −0
Original line number Diff line number Diff line
@@ -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

include/linux/memory_hotplug.h

+12 −0
Original line number Diff line number Diff line
@@ -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 */