lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 25 Nov 2011 13:42:43 +0800 From: Wang Sheng-Hui <shhuiw@...il.com> To: linux-mm@...ck.org, linux-kernel@...r.kernel.org, mel@....ul.ie Subject: Question about mm/compaction.c/acct_isolated: computing nr_anon, nr_file 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, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists