Messages in this thread | | | Date | Fri, 25 Nov 2011 16:03:33 +0800 | From | Wang Sheng-Hui <> | Subject | Re: Question about mm/compaction.c/acct_isolated: computing nr_anon, nr_file |
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On 2011年11月25日 13:42, Wang Sheng-Hui wrote: > > Why does it double the number in line 233/234? > > 222/* Update the number of anon and file isolated pages in the zone */ > 223static void acct_isolated(struct zone *zone, struct compact_control *cc) > 224{ > 225 struct page *page; > 226 unsigned int count[NR_LRU_LISTS] = { 0, }; > 227 > 228 list_for_each_entry(page, &cc->migratepages, lru) { > 229 int lru = page_lru_base_type(page); > 230 count[lru]++; > 231 } > 232 > 233 cc->nr_anon = count[LRU_ACTIVE_ANON] + count[LRU_INACTIVE_ANON]; > 234 cc->nr_file = count[LRU_ACTIVE_FILE] + count[LRU_INACTIVE_FILE]; > 235 __mod_zone_page_state(zone, NR_ISOLATED_ANON, cc->nr_anon); > 236 __mod_zone_page_state(zone, NR_ISOLATED_FILE, cc->nr_file); > 237} > > thanks, >
Sorry, I mistook looking the code. Please ignore the mail. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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