Re: [PATCH 1/2] cpumask: introduce cpumask for hotpluggable CPUs

2011-08-10 Thread Amit Kucheria
On 11 Aug 09, Mike Turquette wrote: On some platforms it is possible to have some CPUs which support CPU hotplug and some which do not. Currently the prescence of an 'online' sysfs entry in userspace is adequate for applications to know that a CPU supports hotplug, but there is no convenient

Re: [PATCH 1/2] cpumask: introduce cpumask for hotpluggable CPUs

2011-08-10 Thread Turquette, Mike
On Wed, Aug 10, 2011 at 1:42 AM, Amit Kucheria amit.kuche...@linaro.org wrote: On 11 Aug 09, Mike Turquette wrote: On some platforms it is possible to have some CPUs which support CPU hotplug and some which do not.  Currently the prescence of an 'online' sysfs entry in userspace is adequate

Re: [PATCH 1/2] cpumask: introduce cpumask for hotpluggable CPUs

2011-08-09 Thread Christian Robottom Reis
On Tue, Aug 09, 2011 at 06:33:26PM -0700, Mike Turquette wrote: - * cpu_possible_mask- has bit 'cpu' set iff cpu is populatable - * cpu_present_mask - has bit 'cpu' set iff cpu is populated - * cpu_online_mask - has bit 'cpu' set iff cpu available to scheduler - *

Re: [PATCH 1/2] cpumask: introduce cpumask for hotpluggable CPUs

2011-08-09 Thread Turquette, Mike
On Tue, Aug 9, 2011 at 7:01 PM, Christian Robottom Reis k...@linaro.org wrote: On Tue, Aug 09, 2011 at 06:33:26PM -0700, Mike Turquette wrote: - *     cpu_possible_mask- has bit 'cpu' set iff cpu is populatable - *     cpu_present_mask - has bit 'cpu' set iff cpu is populated - *