Re: [PATCH v1 2/2] powernv, cpufreq: Add per-core locking to serialize frequency transitions

2014-02-11 Thread Preeti U Murthy
Hi Vaidy, On 02/11/2014 12:32 PM, Vaidyanathan Srinivasan wrote: From: Srivatsa S. Bhat srivatsa.b...@linux.vnet.ibm.com On POWER systems, the CPU frequency is controlled at a core-level and hence we need to serialize so that only one of the threads in the core switches the core's frequency

[PATCH v1 2/2] powernv, cpufreq: Add per-core locking to serialize frequency transitions

2014-02-10 Thread Vaidyanathan Srinivasan
From: Srivatsa S. Bhat srivatsa.b...@linux.vnet.ibm.com On POWER systems, the CPU frequency is controlled at a core-level and hence we need to serialize so that only one of the threads in the core switches the core's frequency at a time. Using a global mutex lock would needlessly serialize _all_