Messages in this thread |  | | From | KOSAKI Motohiro <> | Subject | Re: [PATCH 3/3] add isolate pages vmstat | Date | Fri, 17 Jul 2009 16:00:11 +0900 (JST) |
| |
> > @@ -740,6 +744,13 @@ int migrate_pages(struct list_head *from > > struct page *page2; > > int swapwrite = current->flags & PF_SWAPWRITE; > > int rc; > > + int flags; > > + > > + local_irq_save(flags); > > + list_for_each_entry(page, from, lru) > > + __inc_zone_page_state(page, NR_ISOLATED_ANON + > > + !!page_is_file_cache(page)); > > + local_irq_restore(flags); > > > > Why do a separate pass over all the migrates pages? Can you add the > _inc_xx somewhere after the page was isolated from the lru by calling > try_to_unmap()?
calling try_to_unmap()? the pages are isolated before calling migrate_pages(). migrate_pages() have multiple caller. then I put this __inc_xx into top of migrate_pages().
|  |