On 11/03/16 13:57, Peter Zijlstra wrote:
> On Fri, Mar 11, 2016 at 01:48:12PM +0100, Juergen Gross wrote:
>> On 11/03/16 13:42, Peter Zijlstra wrote:
>>> how about something like:
>>>
>>> struct xen_callback_struct {
>>> struct work_struct work;
>>> struct completion done;
>
On Fri, Mar 11, 2016 at 01:48:12PM +0100, Juergen Gross wrote:
> On 11/03/16 13:42, Peter Zijlstra wrote:
> > how about something like:
> >
> > struct xen_callback_struct {
> > struct work_struct work;
> > struct completion done;
int (*func)(void*);
>
On 11/03/16 13:42, Peter Zijlstra wrote:
> On Fri, Mar 11, 2016 at 01:19:50PM +0100, Peter Zijlstra wrote:
>> On Fri, Mar 11, 2016 at 12:59:30PM +0100, Juergen Gross wrote:
>>> +int call_sync_on_phys_cpu(unsigned cpu, int (*func)(void *), void *par)
>>> +{
>>> + cpumask_var_t old_mask;
>>> + in
On Fri, Mar 11, 2016 at 01:43:53PM +0100, Juergen Gross wrote:
> On 11/03/16 13:19, Peter Zijlstra wrote:
> > On Fri, Mar 11, 2016 at 12:59:30PM +0100, Juergen Gross wrote:
> >> +int call_sync_on_phys_cpu(unsigned cpu, int (*func)(void *), void *par)
> >> +{
> >> + cpumask_var_t old_mask;
> >> +
On 11/03/16 13:19, Peter Zijlstra wrote:
> On Fri, Mar 11, 2016 at 12:59:30PM +0100, Juergen Gross wrote:
>> +int call_sync_on_phys_cpu(unsigned cpu, int (*func)(void *), void *par)
>> +{
>> +cpumask_var_t old_mask;
>> +int ret;
>> +
>> +if (cpu >= nr_cpu_ids)
>> +return -EI
On Fri, Mar 11, 2016 at 01:19:50PM +0100, Peter Zijlstra wrote:
> On Fri, Mar 11, 2016 at 12:59:30PM +0100, Juergen Gross wrote:
> > +int call_sync_on_phys_cpu(unsigned cpu, int (*func)(void *), void *par)
> > +{
> > + cpumask_var_t old_mask;
> > + int ret;
> > +
> > + if (cpu >= nr_cpu_ids)
On Fri, Mar 11, 2016 at 12:59:30PM +0100, Juergen Gross wrote:
> +int call_sync_on_phys_cpu(unsigned cpu, int (*func)(void *), void *par)
> +{
> + cpumask_var_t old_mask;
> + int ret;
> +
> + if (cpu >= nr_cpu_ids)
> + return -EINVAL;
> +
> + if (!alloc_cpumask_var(&old_
On some hardware models (e.g. Dell Studio 1555 laptop) some hardware
related functions (e.g. SMIs) are to be executed on physical cpu 0
only. Instead of open coding such a functionality multiple times in
the kernel add a service function for this purpose. This will enable
the possibility to take sp
