diff options
| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2006-09-25 16:25:31 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-10-13 13:23:26 -0700 |
| commit | 1ada841196360876c5077ae2431ce5b90f9bbec2 (patch) | |
| tree | 13a836246b535058f54666b227df186a07dc976c /include | |
| parent | b1fc5287ba80bcbb7a4cdade1b62de6bb1c91479 (diff) | |
cpu to node relationship fixup: map cpu to node
Assume that a cpu is *physically* offlined at boot time...
Because smpboot.c::smp_boot_cpu_map() canoot find cpu's sapicid,
numa.c::build_cpu_to_node_map() cannot build cpu<->node map for
offlined cpu.
For such cpus, cpu_to_node map should be fixed at cpu-hot-add.
This mapping should be done before cpu onlining.
This patch also handles cpu hotremove case.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-ia64/numa.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-ia64/numa.h b/include/asm-ia64/numa.h index e5a8260593a5..7d5e2ccc37a0 100644 --- a/include/asm-ia64/numa.h +++ b/include/asm-ia64/numa.h @@ -64,7 +64,13 @@ extern int paddr_to_nid(unsigned long paddr); #define local_nodeid (cpu_to_node_map[smp_processor_id()]) +extern void map_cpu_to_node(int cpu, int nid); +extern void unmap_cpu_from_node(int cpu, int nid); + + #else /* !CONFIG_NUMA */ +#define map_cpu_to_node(cpu, nid) do{}while(0) +#define unmap_cpu_from_node(cpu, nid) do{}while(0) #define paddr_to_nid(addr) 0 |