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Groups > linux.kernel > #1514852
| From | Vitaly Wool <vitalywool@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] z3fold: make pages_nr atomic |
| Date | 2016-11-03 22:30 +0100 |
| Message-ID | <szxK9-Rd-27@gated-at.bofh.it> (permalink) |
| References | <szxqN-KH-5@gated-at.bofh.it> <szxAu-NU-17@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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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[PATCH] z3fold: make pages_nr atomic Vitaly Wool <vitalywool@gmail.com> - 2016-11-03 22:10 +0100
Re: [PATCH] z3fold: make pages_nr atomic Andrew Morton <akpm@linux-foundation.org> - 2016-11-03 22:20 +0100
Re: [PATCH] z3fold: make pages_nr atomic Vitaly Wool <vitalywool@gmail.com> - 2016-11-03 22:30 +0100
Re: [PATCH] z3fold: make pages_nr atomic Andrew Morton <akpm@linux-foundation.org> - 2016-11-03 23:20 +0100
Re: [PATCH] z3fold: make pages_nr atomic Vitaly Wool <vitalywool@gmail.com> - 2016-11-04 08:30 +0100
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