diff options
| author | keith mannthey <kmannth@us.ibm.com> | 2006-09-25 16:25:35 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-10-13 13:23:26 -0700 |
| commit | eef1cc3099aa25040099a0721346b550c9722640 (patch) | |
| tree | fa7d16447302e60dd4a7cbe110d2403a4200a1cf /arch | |
| parent | 1ada841196360876c5077ae2431ce5b90f9bbec2 (diff) | |
i386: fix flat mode numa on a real numa system
If there is only 1 node in the system cpus should think they are apart of
some other node.
If cases where a real numa system boots the Flat numa option make sure the
cpus don't claim to be apart on a non-existent node.
Signed-off-by: Keith Mannthey <kmannth@us.ibm.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/kernel/smpboot.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c index f948419c888a..efe07990e7fc 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -642,9 +642,13 @@ static void map_cpu_to_logical_apicid(void) { int cpu = smp_processor_id(); int apicid = logical_smp_processor_id(); + int node = apicid_to_node(apicid); + + if (!node_online(node)) + node = first_online_node; cpu_2_logical_apicid[cpu] = apicid; - map_cpu_to_node(cpu, apicid_to_node(apicid)); + map_cpu_to_node(cpu, node); } static void unmap_cpu_to_logical_apicid(int cpu) |