Messages in this thread | | | Subject | Re: [PATCH v2 2/4] mm: Convert zone->managed_pages to atomic variable | From | Vlastimil Babka <> | Date | Wed, 7 Nov 2018 09:57:51 +0100 |
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On 11/6/18 5:21 PM, Arun KS wrote: > totalram_pages, zone->managed_pages and totalhigh_pages updates > are protected by managed_page_count_lock, but readers never care > about it. Convert these variables to atomic to avoid readers > potentially seeing a store tear. > > This patch converts zone->managed_pages. Subsequent patches will > convert totalram_panges, totalhigh_pages and eventually > managed_page_count_lock will be removed. > > Suggested-by: Michal Hocko <mhocko@suse.com> > Suggested-by: Vlastimil Babka <vbabka@suse.cz> > Signed-off-by: Arun KS <arunks@codeaurora.org> > Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> > Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
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