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| author | Jeff Garzik <jgarzik@pobox.com> | 2006-02-09 00:58:59 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2006-02-09 00:58:59 -0500 |
| commit | cac0e8e8bb2e7a086643bdd00c41d900a79bb4fa (patch) | |
| tree | 73cd85e5529a01fa2338ab6d58b99c36dd666cbe /arch/i386/kernel/acpi/boot.c | |
| parent | ddef9bb367b19383df627e388cb4c01c86ddba6c (diff) | |
| parent | 0bdd340c092b0936f78a54bdbd3927463ed4fca3 (diff) | |
Merge branch 'master'
Diffstat (limited to 'arch/i386/kernel/acpi/boot.c')
| -rw-r--r-- | arch/i386/kernel/acpi/boot.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index f21fa0d4482..79577f0ace9 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -248,10 +248,17 @@ acpi_parse_lapic(acpi_table_entry_header * header, const unsigned long end) acpi_table_print_madt_entry(header); - /* Register even disabled CPUs for cpu hotplug */ - - x86_acpiid_to_apicid[processor->acpi_id] = processor->id; + /* Record local apic id only when enabled */ + if (processor->flags.enabled) + x86_acpiid_to_apicid[processor->acpi_id] = processor->id; + /* + * We need to register disabled CPU as well to permit + * counting disabled CPUs. This allows us to size + * cpus_possible_map more accurately, to permit + * to not preallocating memory for all NR_CPUS + * when we use CPU hotplug. + */ mp_register_lapic(processor->id, /* APIC ID */ processor->flags.enabled); /* Enabled? */ |