On Tue, Oct 26, 2021 at 11:05 PM Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote:
On Tue, Oct 26, 2021 at 09:21:29PM -0400, Pasha Tatashin wrote:
I think we can do that by using:
atomic_fetch_*() and check for overflow/underflow after operation. I
will send the updated series soon.
Please include performance measurements. You're adding code to some hot
paths.
I will do boot performance tests to ensure we do not regress
initializing "struct pages" on larger machines. Do you have a
suggestion for another perf test?
Thanks,
Pasha
