提交 10ad400b 编写于 作者: Y Yasunori Goto 提交者: Linus Torvalds

[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: NYasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 306d6cbe
......@@ -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
......
......@@ -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 */
......
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