From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: linux-mm@kvack.org
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: [PATCH 14/39] mm: pgrep: manage page-state
Date: Wed, 12 Jul 2006 16:39:40 +0200 [thread overview]
Message-ID: <20060712143940.16998.41841.sendpatchset@lappy> (raw)
In-Reply-To: <20060712143659.16998.6444.sendpatchset@lappy>
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
API:
Copy/Clear the reclaim page state:
void pgrep_copy_state(struct page *, struct page *);
void pgrep_clear_state(struct page *);
Query activeness of the page, where 'active' is taken to mean: not likely
to be in the next candidate group.
int pgrep_is_active(struct page *);
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl
include/linux/mm_page_replace.h | 3 +++
include/linux/mm_use_once_policy.h | 17 +++++++++++++++++
mm/mempolicy.c | 2 +-
mm/migrate.c | 5 ++---
mm/vmscan.c | 1 +
5 files changed, 24 insertions(+), 4 deletions(-)
Index: linux-2.6/include/linux/mm_page_replace.h
===================================================================
--- linux-2.6.orig/include/linux/mm_page_replace.h 2006-07-12 16:09:18.000000000 +0200
+++ linux-2.6/include/linux/mm_page_replace.h 2006-07-12 16:11:45.000000000 +0200
@@ -81,6 +81,9 @@ typedef enum {
extern unsigned long pgrep_shrink_zone(int priority, struct zone *zone,
struct scan_control *sc);
/* void __pgrep_rotate_reclaimable(struct zone *, struct page *); */
+/* void pgrep_copy_state(struct page *, struct page *); */
+/* void pgrep_clear_state(struct page *); */
+/* int pgrep_is_active(struct page *); */
#ifdef CONFIG_MM_POLICY_USEONCE
Index: linux-2.6/include/linux/mm_use_once_policy.h
===================================================================
--- linux-2.6.orig/include/linux/mm_use_once_policy.h 2006-07-12 16:09:18.000000000 +0200
+++ linux-2.6/include/linux/mm_use_once_policy.h 2006-07-12 16:11:45.000000000 +0200
@@ -103,5 +103,22 @@ static inline void __pgrep_rotate_reclai
}
}
+static inline void pgrep_copy_state(struct page *dpage, struct page *spage)
+{
+ if (PageActive(spage))
+ SetPageActive(dpage);
+}
+
+static inline void pgrep_clear_state(struct page *page)
+{
+ if (PageActive(page))
+ ClearPageActive(page);
+}
+
+static inline int pgrep_is_active(struct page *page)
+{
+ return PageActive(page);
+}
+
#endif /* __KERNEL__ */
#endif /* _LINUX_MM_USEONCE_POLICY_H */
Index: linux-2.6/mm/mempolicy.c
===================================================================
--- linux-2.6.orig/mm/mempolicy.c 2006-07-12 16:08:18.000000000 +0200
+++ linux-2.6/mm/mempolicy.c 2006-07-12 16:11:43.000000000 +0200
@@ -1749,7 +1749,7 @@ static void gather_stats(struct page *pa
if (PageSwapCache(page))
md->swapcache++;
- if (PageActive(page))
+ if (pgrep_is_active(page))
md->active++;
if (PageWriteback(page))
Index: linux-2.6/mm/migrate.c
===================================================================
--- linux-2.6.orig/mm/migrate.c 2006-07-12 16:08:18.000000000 +0200
+++ linux-2.6/mm/migrate.c 2006-07-12 16:11:45.000000000 +0200
@@ -262,12 +262,11 @@ void migrate_page_copy(struct page *newp
SetPageReferenced(newpage);
if (PageUptodate(page))
SetPageUptodate(newpage);
- if (PageActive(page))
- SetPageActive(newpage);
if (PageChecked(page))
SetPageChecked(newpage);
if (PageMappedToDisk(page))
SetPageMappedToDisk(newpage);
+ pgrep_copy_state(newpage, page);
if (PageDirty(page)) {
clear_page_dirty_for_io(page);
@@ -275,8 +274,8 @@ void migrate_page_copy(struct page *newp
}
ClearPageSwapCache(page);
- ClearPageActive(page);
ClearPagePrivate(page);
+ pgrep_clear_state(page);
set_page_private(page, 0);
page->mapping = NULL;
Index: linux-2.6/mm/vmscan.c
===================================================================
--- linux-2.6.orig/mm/vmscan.c 2006-07-12 16:09:18.000000000 +0200
+++ linux-2.6/mm/vmscan.c 2006-07-12 16:11:45.000000000 +0200
@@ -473,6 +473,7 @@ unsigned long shrink_page_list(struct li
goto keep_locked;
free_it:
+ pgrep_clear_state(page);
unlock_page(page);
nr_reclaimed++;
if (!pagevec_add(&freed_pvec, page))
--
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next prev parent reply other threads:[~2006-07-12 14:39 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-12 14:36 [PATCH 0/39] mm: 2.6.17-pr1 - generic page-replacement framework and 4 new policies Peter Zijlstra
2006-07-12 14:37 ` [PATCH 1/39] mm: disuse activate_page() Peter Zijlstra
2006-07-12 14:37 ` [PATCH 2/39] mm: adjust blk_congestion_wait() logic Peter Zijlstra
2006-07-12 14:37 ` [PATCH 3/39] mm: pgrep: prepare for page replace framework Peter Zijlstra
2006-07-12 14:37 ` [PATCH 4/39] mm: pgrep: convert insertion Peter Zijlstra
2006-07-12 14:37 ` [PATCH 5/39] mm: pgrep: add a use-once insertion hint Peter Zijlstra
2006-07-12 14:38 ` [PATCH 6/39] mm: pgrep: generice __pagevec_*_add Peter Zijlstra
2006-07-12 14:38 ` [PATCH 7/39] mm: pgrep: abstract the activation logic Peter Zijlstra
2006-07-12 14:38 ` [PATCH 8/39] mm: pgrep: move useful macros around Peter Zijlstra
2006-07-12 14:38 ` [PATCH 9/39] mm: pgrep: move struct scan_control around Peter Zijlstra
2006-07-12 14:38 ` [PATCH 10/39] mm: pgrep: isolate the reclaim_mapped logic Peter Zijlstra
2006-07-12 14:39 ` [PATCH 11/39] mm: pgrep: replace mark_page_accessed Peter Zijlstra
2006-07-12 14:39 ` [PATCH 12/39] mm: pgrep: move the shrink logic Peter Zijlstra
2006-07-12 14:39 ` [PATCH 13/39] mm: pgrep: abstract rotate_reclaimable_page() Peter Zijlstra
2006-07-12 14:39 ` Peter Zijlstra [this message]
2006-07-12 14:39 ` [PATCH 15/39] mm: pgrep: abstract page removal Peter Zijlstra
2006-07-12 14:40 ` [PATCH 16/39] mm: pgrep: remove mm_inline.h Peter Zijlstra
2006-07-12 14:40 ` [PATCH 17/39] mm: pgrep: re-insertion logic Peter Zijlstra
2006-07-12 14:40 ` [PATCH 18/39] mm: pgrep: initialisation hooks Peter Zijlstra
2006-07-12 14:40 ` [PATCH 19/39] mm: pgrep: info functions Peter Zijlstra
2006-07-12 14:40 ` [PATCH 20/39] mm: pgrep: page count functions Peter Zijlstra
2006-07-12 14:41 ` [PATCH 21/39] mm: pgrep: per policy data Peter Zijlstra
2006-07-12 14:41 ` [PATCH 22/39] mm: pgrep: per policy PG_flags Peter Zijlstra
2006-07-12 14:41 ` [PATCH 23/39] mm: pgrep: nonresident page tracking hooks Peter Zijlstra
2006-07-12 14:41 ` [PATCH 24/39] mm: pgrep: generic shrinker logic Peter Zijlstra
2006-07-12 14:41 ` [PATCH 25/39] mm: pgrep: documentation Peter Zijlstra
2006-07-12 14:42 ` [PATCH 26/39] sum_cpu_var Peter Zijlstra
2006-07-12 14:42 ` [PATCH 27/39] mm: clockpro: nonresident page tracking for CLOCK-Pro Peter Zijlstra
2006-07-12 14:42 ` [PATCH 28/39] mm: clockpro: re-introduce page_referenced() ignore_token Peter Zijlstra
2006-07-12 14:42 ` [PATCH 29/39] mm: clockpro: second per policy PG_flag Peter Zijlstra
2006-07-12 14:42 ` [PATCH 30/39] mm: clockpro: CLOCK-Pro policy implementation Peter Zijlstra
2006-07-12 14:43 ` [PATCH 31/39] mm: cart: nonresident page tracking for CART Peter Zijlstra
2006-07-12 14:43 ` [PATCH 32/39] mm: cart: third per policy PG_flag Peter Zijlstra
2006-07-12 14:43 ` [PATCH 33/39] mm: cart: CART policy implementation Peter Zijlstra
2006-07-12 14:43 ` [PATCH 34/39] mm: cart: CART-r " Peter Zijlstra
2006-07-12 14:43 ` [PATCH 35/39] mm: random: random page replacement policy Peter Zijlstra
2006-07-12 14:44 ` [PATCH 36/39] mm: refault histogram for non-resident policies Peter Zijlstra
2006-07-12 14:44 ` [PATCH 37/39] mm: use-once: cleanup of the use-once logic Peter Zijlstra
2006-07-12 14:44 ` [PATCH 38/39] mm: use-once: use the generic shrinker logic Peter Zijlstra
2006-07-12 14:44 ` [PATCH 39/39] mm: use-once: cleanup of the insertion logic Peter Zijlstra
2006-07-13 15:38 ` [PATCH 0/39] mm: 2.6.17-pr1 - generic page-replacement framework and 4 new policies Christoph Lameter
2006-07-15 17:03 ` Peter Zijlstra
2006-07-16 3:50 ` Christoph Lameter
2006-07-26 10:03 ` Marcelo Tosatti
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