On Tue, Mar 02, 2021 at 10:14:53AM +0100, Christoph Lameter wrote: > On Mon, 10 Aug 2020, Xunlei Pang wrote: > > - atomic_long_t partial_free_objs; > > + atomic_long_t __percpu *partial_free_objs; > > A percpu counter is never atomic. Just use unsigned long and use this_cpu > operations for this thing. That should cut down further on the overhead.
What about allocations from interrupt context? Should this be a local_t instead?
