On 02.03.23 15:33, Matthew Wilcox wrote:
On Thu, Mar 02, 2023 at 03:23:46PM +0100, David Hildenbrand wrote:
If no workload/benchmark is affected (or simply corner cases where nobody
cares about performance), I hope you understand that it's hard to argue why
we should care about such an optimization then.
In order to solve the mapcount problem, we're going to want to unmap
the entire folio in one call, instead of unmapping each page in it
individually and checking each time whether there are any remaining
pages from this folio still mapped.
Okay, thanks. That should better be added to the cover letter, ideally
with more details on the mapcount goal and how this patch set will helps
in that regard. So far the cover letter only talks about eventual
performance gains.
--
Thanks,
David / dhildenb
