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From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: Rik van Riel <riel@redhat.com>
Cc: kosaki.motohiro@jp.fujitsu.com, Andy Whitcroft <apw@shadowen.org>,
	linux-kernel@vger.kernel.org,
	Lee Schermerhorn <Lee.Schermerhorn@hp.com>,
	linux-mm@kvack.org
Subject: Re: [patch 03/21] use an array for the LRU pagevecs
Date: Tue, 04 Mar 2008 20:04:05 +0900	[thread overview]
Message-ID: <20080304200209.1EAB.KOSAKI.MOTOHIRO@jp.fujitsu.com> (raw)
In-Reply-To: <20080301153941.528A.KOSAKI.MOTOHIRO@jp.fujitsu.com>

Hi Rik

this is fixed patch of Andy Whitcroft's point out.
(at least, I hope it)



Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>

---
 include/linux/mmzone.h |    4 +---
 mm/swap.c              |   15 +++++++++++----
 2 files changed, 12 insertions(+), 7 deletions(-)

Index: b/include/linux/mmzone.h
===================================================================
--- a/include/linux/mmzone.h	2008-03-04 19:07:11.000000000 +0900
+++ b/include/linux/mmzone.h	2008-03-04 19:09:06.000000000 +0900
@@ -116,9 +116,7 @@ enum lru_list {
 
 static inline int is_active_lru(enum lru_list l)
 {
-	if (l == LRU_ACTIVE)
-		return 1;
-	return 0;
+	return (l == LRU_ACTIVE);
 }
 
 enum lru_list page_lru(struct page *page);
Index: b/mm/swap.c
===================================================================
--- a/mm/swap.c	2008-03-04 19:07:11.000000000 +0900
+++ b/mm/swap.c	2008-03-04 20:01:48.000000000 +0900
@@ -96,8 +96,9 @@ void put_pages_list(struct list_head *pa
 }
 EXPORT_SYMBOL(put_pages_list);
 
-/*
+/**
  * Returns the LRU list a page should be on.
+ * @page: the page we're checking.
  */
 enum lru_list page_lru(struct page *page)
 {
@@ -222,11 +223,15 @@ void __lru_cache_add(struct page *page, 
 	put_cpu_var(lru_add_pvecs);
 }
 
+/**
+ * lru_cache_add_lru: add a page to the page lists
+ * @page: the page to be added to LRU.
+ * @lru:  the lru to which the page is added.
+ */
 void lru_cache_add_lru(struct page *page, enum lru_list lru)
 {
-	if (PageActive(page)) {
+	if (PageActive(page))
 		ClearPageActive(page);
-	}
 
 	VM_BUG_ON(PageLRU(page) || PageActive(page));
 	__lru_cache_add(page, lru);
@@ -397,9 +402,11 @@ void __pagevec_release_nonlru(struct pag
 	pagevec_reinit(pvec);
 }
 
-/*
+/**
  * Add the passed pages to the LRU, then drop the caller's refcount
  * on them.  Reinitialises the caller's pagevec.
+ * @pvec: the pagevec of pages to be added to LRU.
+ * @lru:  the lru to which pages are added.
  */
 void ____pagevec_lru_add(struct pagevec *pvec, enum lru_list lru)
 {



  reply	other threads:[~2008-03-04 11:05 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-28 19:29 [patch 00/21] VM pageout scalability improvements Rik van Riel
2008-02-28 19:29 ` [patch 01/21] move isolate_lru_page() to vmscan.c Rik van Riel
2008-02-29  2:29   ` KOSAKI Motohiro
2008-02-29  2:41     ` Rik van Riel
2008-02-29  2:47       ` KOSAKI Motohiro
2008-02-28 19:29 ` [patch 02/21] Use an indexed array for LRU variables Rik van Riel
2008-02-29 16:03   ` Andy Whitcroft
2008-03-03 18:57     ` Rik van Riel
2008-02-28 19:29 ` [patch 03/21] use an array for the LRU pagevecs Rik van Riel
2008-02-29 15:40   ` Andy Whitcroft
2008-03-01  7:02     ` KOSAKI Motohiro
2008-03-04 11:04       ` KOSAKI Motohiro [this message]
2008-03-04 20:38         ` Rik van Riel
2008-03-05  1:38           ` KOSAKI Motohiro
2008-02-28 19:29 ` [patch 04/21] free swap space on swap-in/activation Rik van Riel
2008-02-28 20:05   ` Lee Schermerhorn
2008-02-28 20:20     ` Rik van Riel
2008-02-28 19:29 ` [patch 05/21] define page_file_cache() function Rik van Riel
2008-02-29 11:53   ` KOSAKI Motohiro
2008-02-28 19:29 ` [patch 06/21] split LRU lists into anon & file sets Rik van Riel
2008-03-01 12:13   ` KOSAKI Motohiro
2008-03-01 12:46   ` KOSAKI Motohiro
2008-02-28 19:29 ` [patch 07/21] SEQ replacement for anonymous pages Rik van Riel
2008-03-03 10:50   ` barrioskmc@gmail
2008-02-28 19:29 ` [patch 08/21] (NEW) add some sanity checks to get_scan_ratio Rik van Riel
2008-03-04 10:40   ` minchan Kim
2008-02-28 19:29 ` [patch 09/21] (NEW) improve reclaim balancing Rik van Riel
2008-03-01 13:35   ` KOSAKI Motohiro
2008-03-03 19:26     ` Rik van Riel
2008-02-28 19:29 ` [patch 10/21] add newly swapped in pages to the inactive list Rik van Riel
2008-02-28 19:29 ` [patch 11/21] (NEW) more aggressively use lumpy reclaim Rik van Riel
2008-03-02 10:35   ` KOSAKI Motohiro
2008-03-02 14:23     ` Rik van Riel
2008-02-28 19:29 ` [patch 12/21] No Reclaim LRU Infrastructure Rik van Riel
     [not found]   ` <44c63dc40802282058h67f7597bvb614575f06c62e2c@mail.gmail.com>
2008-02-29 14:48     ` Lee Schermerhorn
     [not found]       ` <44c63dc40803021904n5de681datba400e08079c152d@mail.gmail.com>
2008-03-03  3:06         ` minchan Kim
2008-03-03 18:46         ` Rik van Riel
2008-03-03 23:38           ` barrioskmc@gmail
2008-03-04  1:55             ` Rik van Riel
2008-03-04 10:46   ` KOSAKI Motohiro
2008-03-04 15:05     ` Lee Schermerhorn
2008-03-04 21:21       ` Rik van Riel
2008-03-05  1:42       ` KOSAKI Motohiro
2008-02-28 19:29 ` [patch 13/21] Non-reclaimable page statistics Rik van Riel
2008-02-28 19:29 ` [patch 14/21] scan noreclaim list for reclaimable pages Rik van Riel
2008-02-28 23:41   ` Randy Dunlap
2008-02-29 14:38     ` Lee Schermerhorn
2008-02-28 19:29 ` [patch 15/21] ramfs pages are non-reclaimable Rik van Riel
2008-02-28 19:29 ` [patch 16/21] SHM_LOCKED pages are nonreclaimable Rik van Riel
2008-02-28 19:29 ` [patch 17/21] non-reclaimable mlocked pages Rik van Riel
     [not found]   ` <44c63dc40802282055q508af6ccsb0e8ac3fb5e67d24@mail.gmail.com>
2008-02-29 14:47     ` Lee Schermerhorn
2008-02-28 19:29 ` [patch 18/21] mlock vma pages under mmap_sem held for read Rik van Riel
2008-02-28 19:29 ` [patch 19/21] handle mlocked pages during map/unmap and truncate Rik van Riel
2008-02-28 19:29 ` [patch 20/21] account mlocked pages Rik van Riel
2008-02-28 19:29 ` [patch 21/21] cull non-reclaimable anon pages from the LRU at fault time Rik van Riel
2008-02-28 20:19   ` Lee Schermerhorn
2008-02-28 22:27     ` Rik van Riel
2008-02-28 19:49 ` [patch 00/21] VM pageout scalability improvements Rik van Riel
2008-02-28 20:14 ` John Stoffel
2008-02-28 20:23   ` Rik van Riel

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