On Thu, Nov 3, 2016 at 10:14 PM, Andrew Morton <a...@linux-foundation.org> wrote: > On Thu, 3 Nov 2016 22:00:58 +0100 Vitaly Wool <vitalyw...@gmail.com> wrote: > >> This patch converts pages_nr per-pool counter to atomic64_t. > > Which is slower. > > Presumably there is a reason for making this change. This reason > should be described in the changelog.
The reason [which I thought was somewhat obvious :) ] is that there won't be a need to take a per-pool lock to read or modify that counter. Best regards, Vitaly
