From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail6.bemta8.messagelabs.com (mail6.bemta8.messagelabs.com [216.82.243.55]) by kanga.kvack.org (Postfix) with ESMTP id 23A596B0075 for ; Fri, 25 Nov 2011 03:03:44 -0500 (EST) Received: by ywm14 with SMTP id 14so3058081ywm.14 for ; Fri, 25 Nov 2011 00:03:43 -0800 (PST) Message-ID: <4ECF4BD5.1020705@gmail.com> Date: Fri, 25 Nov 2011 16:03:33 +0800 From: Wang Sheng-Hui MIME-Version: 1.0 Subject: Re: Question about mm/compaction.c/acct_isolated: computing nr_anon, nr_file References: <4ECF2AD3.5050801@gmail.com> In-Reply-To: <4ECF2AD3.5050801@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org, linux-kernel@vger.kernel.org, mel@csn.ul.ie On 2011a1'11ae??25ae?JPY 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, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org