From: Konstantin Khlebnikov <khlebnikov@openvz.org>
To: <linux-mm@kvack.org>, Andrew Morton <akpm@linux-foundation.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH RFC] mm: reverse lru scanning order
Date: Wed, 27 Jul 2011 15:10:02 +0400 [thread overview]
Message-ID: <20110727111002.9985.94938.stgit@localhost6> (raw)
LRU scanning order was accidentially changed in commit v2.6.27-5584-gb69408e:
"vmscan: Use an indexed array for LRU variables".
Before that commit reclaimer always scan active lists first.
This patch just reverse it back.
This is just notice and question: "Does it affect something?"
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
---
include/linux/mmzone.h | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index be1ac8d..88fb49c 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -141,7 +141,8 @@ enum lru_list {
#define for_each_lru(l) for (l = 0; l < NR_LRU_LISTS; l++)
-#define for_each_evictable_lru(l) for (l = 0; l <= LRU_ACTIVE_FILE; l++)
+#define for_each_evictable_lru(l) \
+ for (l = LRU_ACTIVE_FILE; l >= LRU_INACTIVE_ANON; l--)
static inline int is_file_lru(enum lru_list l)
{
WARNING: multiple messages have this Message-ID (diff)
From: Konstantin Khlebnikov <khlebnikov@openvz.org>
To: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH RFC] mm: reverse lru scanning order
Date: Wed, 27 Jul 2011 15:10:02 +0400 [thread overview]
Message-ID: <20110727111002.9985.94938.stgit@localhost6> (raw)
LRU scanning order was accidentially changed in commit v2.6.27-5584-gb69408e:
"vmscan: Use an indexed array for LRU variables".
Before that commit reclaimer always scan active lists first.
This patch just reverse it back.
This is just notice and question: "Does it affect something?"
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
---
include/linux/mmzone.h | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index be1ac8d..88fb49c 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -141,7 +141,8 @@ enum lru_list {
#define for_each_lru(l) for (l = 0; l < NR_LRU_LISTS; l++)
-#define for_each_evictable_lru(l) for (l = 0; l <= LRU_ACTIVE_FILE; l++)
+#define for_each_evictable_lru(l) \
+ for (l = LRU_ACTIVE_FILE; l >= LRU_INACTIVE_ANON; l--)
static inline int is_file_lru(enum lru_list l)
{
--
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next reply other threads:[~2011-07-27 11:10 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-27 11:10 Konstantin Khlebnikov [this message]
2011-07-27 11:10 ` [PATCH RFC] mm: reverse lru scanning order Konstantin Khlebnikov
2011-08-01 16:15 ` Konstantin Khlebnikov
2011-08-01 16:15 ` Konstantin Khlebnikov
2011-08-01 23:45 ` KOSAKI Motohiro
2011-08-01 23:45 ` KOSAKI Motohiro
2011-08-08 11:02 ` [PATCH v2] vmscan: " Konstantin Khlebnikov
2011-08-08 11:02 ` Konstantin Khlebnikov
2011-08-08 12:22 ` Michal Hocko
2011-08-08 12:22 ` Michal Hocko
2011-08-08 22:30 ` Minchan Kim
2011-08-08 22:30 ` Minchan Kim
2011-08-08 23:48 ` KAMEZAWA Hiroyuki
2011-08-08 23:48 ` KAMEZAWA Hiroyuki
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