diff options
| author | Jon Mayo <jmayo@nvidia.com> | 2011-06-21 15:44:35 -0700 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2011-07-29 17:16:28 -0700 |
| commit | 002c920f591737632293a024eff5adc5505fcf67 (patch) | |
| tree | 5e21f2cd17a50c07caf1d44b9323003c66c24bcf /arch/arm/kernel | |
| parent | 8c0035555d1f0c52088cec7f61a442d5d5c751c1 (diff) | |
ARM: report present cpus instead of online CPUs
For machines that use hotplug to control special power domains, report
present cpus in /proc/cpuinfo and /proc/stat instead of the standard of
reporting online. This break hotplug behavior on all other platforms.
The option is enabled using CONFIG_REPORT_PRESENT_CPUS
Bug 849167
Change-Id: Ib04bb73634b3a8c99592b1ac13eb471a8ecfd0c5
Reviewed-on: http://git-master/r/37732
Reviewed-by: Jonathan Mayo <jmayo@nvidia.com>
Tested-by: Jonathan Mayo <jmayo@nvidia.com>
Reviewed-by: Aleksandr Frid <afrid@nvidia.com>
Reviewed-by: Krishna Reddy <vdumpa@nvidia.com>
Diffstat (limited to 'arch/arm/kernel')
| -rw-r--r-- | arch/arm/kernel/setup.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index d5231ae7355a..e19afed6355a 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -905,7 +905,11 @@ static int c_show(struct seq_file *m, void *v) cpu_name, read_cpuid_id() & 15, elf_platform); #if defined(CONFIG_SMP) +# if defined(CONFIG_REPORT_PRESENT_CPUS) + for_each_present_cpu(i) { +# else for_each_online_cpu(i) { +# endif /* * glibc reads /proc/cpuinfo to determine the number of * online processors, looking for lines beginning with |