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authorJoonsoo Kim <[email protected]>2020-08-11 18:30:43 -0700
committerLinus Torvalds <[email protected]>2020-08-12 10:57:55 -0700
commit170b04b7ae49634df103810dad67b22cf8a99aa6 (patch)
tree234fa68ed80da93e394aaf281b053f600bc2db54 /include/linux
parentb518154e59aab3ad0780a169c5cc84bd4ee4357e (diff)
mm/workingset: prepare the workingset detection infrastructure for anon LRU
To prepare the workingset detection for anon LRU, this patch splits workingset event counters for refault, activate and restore into anon and file variants, as well as the refaults counter in struct lruvec. Signed-off-by: Joonsoo Kim <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Acked-by: Johannes Weiner <[email protected]> Acked-by: Vlastimil Babka <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Minchan Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/mmzone.h16
1 files changed, 11 insertions, 5 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 635a96cd9b1f..efbd95dd3bbf 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -173,9 +173,15 @@ enum node_stat_item {
NR_ISOLATED_ANON, /* Temporary isolated pages from anon lru */
NR_ISOLATED_FILE, /* Temporary isolated pages from file lru */
WORKINGSET_NODES,
- WORKINGSET_REFAULT,
- WORKINGSET_ACTIVATE,
- WORKINGSET_RESTORE,
+ WORKINGSET_REFAULT_BASE,
+ WORKINGSET_REFAULT_ANON = WORKINGSET_REFAULT_BASE,
+ WORKINGSET_REFAULT_FILE,
+ WORKINGSET_ACTIVATE_BASE,
+ WORKINGSET_ACTIVATE_ANON = WORKINGSET_ACTIVATE_BASE,
+ WORKINGSET_ACTIVATE_FILE,
+ WORKINGSET_RESTORE_BASE,
+ WORKINGSET_RESTORE_ANON = WORKINGSET_RESTORE_BASE,
+ WORKINGSET_RESTORE_FILE,
WORKINGSET_NODERECLAIM,
NR_ANON_MAPPED, /* Mapped anonymous pages */
NR_FILE_MAPPED, /* pagecache pages mapped into pagetables.
@@ -277,8 +283,8 @@ struct lruvec {
unsigned long file_cost;
/* Non-resident age, driven by LRU movement */
atomic_long_t nonresident_age;
- /* Refaults at the time of last reclaim cycle */
- unsigned long refaults;
+ /* Refaults at the time of last reclaim cycle, anon=0, file=1 */
+ unsigned long refaults[2];
/* Various lruvec state flags (enum lruvec_flags) */
unsigned long flags;
#ifdef CONFIG_MEMCG