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| author | Yinghai Lu <yinghai@kernel.org> | 2010-02-10 01:20:37 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-02-17 17:30:22 -0800 |
| commit | 2b633e3fac5efada088b57d31e65401f22bcc18f (patch) | |
| tree | a5a63de9ef9db656dd9c87c7eaf360762fe69759 /drivers/acpi/numa.c | |
| parent | 6738762d73a237ec322b04d8b9d55c8fd5d84713 (diff) | |
| download | lwn-2b633e3fac5efada088b57d31e65401f22bcc18f.tar.gz lwn-2b633e3fac5efada088b57d31e65401f22bcc18f.zip | |
smp: Use nr_cpus= to set nr_cpu_ids early
On x86, before prefill_possible_map(), nr_cpu_ids will be NR_CPUS aka
CONFIG_NR_CPUS.
Add nr_cpus= to set nr_cpu_ids. so we can simulate cpus <=8 are installed on
normal config.
-v2: accordging to Christoph, acpi_numa_init should use nr_cpu_ids in stead of
NR_CPUS.
-v3: add doc in kernel-parameters.txt according to Andrew.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <1265793639-15071-34-git-send-email-yinghai@kernel.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'drivers/acpi/numa.c')
| -rw-r--r-- | drivers/acpi/numa.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index 7ad48dfc12db..b8725461d887 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -279,9 +279,9 @@ int __init acpi_numa_init(void) /* SRAT: Static Resource Affinity Table */ if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) { acpi_table_parse_srat(ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY, - acpi_parse_x2apic_affinity, NR_CPUS); + acpi_parse_x2apic_affinity, nr_cpu_ids); acpi_table_parse_srat(ACPI_SRAT_TYPE_CPU_AFFINITY, - acpi_parse_processor_affinity, NR_CPUS); + acpi_parse_processor_affinity, nr_cpu_ids); ret = acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY, acpi_parse_memory_affinity, NR_NODE_MEMBLKS); |