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| author |   KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2006-09-25 16:25:31 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-25 17:38:36 -0700 |
| commit | 3212fe1594e577463bc8601d28aa008f520c3377 (patch) | |
| tree | 6f4270c825c2df9f4a361360dab0963ecaed34c1 /include/asm-ia64/numa.h | |
| parent | [PATCH] cpu to node relationship fixup: acpi_map_cpu2node (diff) | |
| download | linux-dev-3212fe1594e577463bc8601d28aa008f520c3377.tar.xz linux-dev-3212fe1594e577463bc8601d28aa008f520c3377.zip | |
[PATCH] 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: "Luck, Tony" <tony.luck@intel.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-ia64/numa.h')
| -rw-r--r-- | include/asm-ia64/numa.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-ia64/numa.h b/include/asm-ia64/numa.h index e5a8260593a5..e0a1d173e42d 100644 --- a/include/asm-ia64/numa.h +++ b/include/asm-ia64/numa.h @@ -64,6 +64,10 @@ 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 paddr_to_nid(addr) 0 |