On Tue, Feb 12, 2019 at 10:36:12PM +0000, Roman Gushchin wrote: > On Tue, Feb 12, 2019 at 12:34:09PM -0800, Andrew Morton wrote: > > On Tue, 12 Feb 2019 13:47:24 -0500 Johannes Weiner <[email protected]> > > wrote: > > > I don't understand what prompted this change to percpu counters. > > I *think*, I see some performance difference, but it's barely measurable > in my setup. Also as I remember, Matthew was asking why not percpu here. > So if everybody prefers a global atomic, I'm fine with either.
I was asking why you were using an accessor instead of a direct reference to the atomic_long_t.
