Messages in this thread | | | Subject | Re: [PATCH v14 15/20] mm/swap: serialize memcg changes during pagevec_lru_move_fn | From | Alex Shi <> | Date | Sat, 4 Jul 2020 21:12:46 +0800 |
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在 2020/7/4 下午7:39, Matthew Wilcox 写道: > On Sat, Jul 04, 2020 at 07:34:59PM +0800, Alex Shi wrote: >> That's a great idea! Guess what the new struct we need would be like this? >> I like to try this. :) >> >> >> diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h >> index 081d934eda64..d62778c8c184 100644 >> --- a/include/linux/pagevec.h >> +++ b/include/linux/pagevec.h >> @@ -20,7 +20,7 @@ >> struct pagevec { >> unsigned char nr; >> bool percpu_pvec_drained; >> - struct page *pages[PAGEVEC_SIZE]; >> + struct list_head veclist; >> }; > > pagevecs are used not just for LRU. If you want to use a list_head for > LRU then define a new structure. >
yes, there are much page don't use page->lru, like slab etc. we need a new struct.
Thanks! Alex
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