Messages in this thread | | | From | Vitaly Wool <> | Date | Thu, 3 Nov 2016 22:24:07 +0100 | Subject | Re: [PATCH] z3fold: make pages_nr atomic |
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On Thu, Nov 3, 2016 at 10:14 PM, Andrew Morton <akpm@linux-foundation.org> wrote: > On Thu, 3 Nov 2016 22:00:58 +0100 Vitaly Wool <vitalywool@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
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