Messages in this thread | | | Date | Wed, 13 Feb 2019 12:26:15 -0800 | From | Matthew Wilcox <> | Subject | Re: [PATCH v2 0/3] vmalloc enhancements |
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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 <hannes@cmpxchg.org> 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.
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