Re: [PATCH v7] workqueue: Fix edge cases for calc of pool's cpumask

2017-07-28 Thread Tejun Heo
On Thu, Jul 27, 2017 at 04:27:14PM -0500, Michael Bringmann wrote: > > There is an underlying assumption/trade-off in many layers of the Linux > system that CPU <-> node mapping is static. This is despite the presence > of features like NUMA and 'hotplug' that support the dynamic addition/ > remo

[PATCH v7] workqueue: Fix edge cases for calc of pool's cpumask

2017-07-27 Thread Michael Bringmann
There is an underlying assumption/trade-off in many layers of the Linux system that CPU <-> node mapping is static. This is despite the presence of features like NUMA and 'hotplug' that support the dynamic addition/ removal of fundamental system resources like CPUs and memory. PowerPC systems, h