The patch titled
mm: make get_scan_ratio() safe for memcg
has been removed from the -mm tree. Its filename was
mm-make-get_scan_ratio-safe-for-memcg.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: mm: make get_scan_ratio() safe for memcg
From: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Currently, get_scan_ratio() always calculate the balancing value for
global reclaim and memcg reclaim doesn't use it. Therefore it doesn't
have scan_global_lru() condition.
However, we plan to expand get_scan_ratio() to be usable for memcg too,
latter. Then, The dependency code of global reclaim in the
get_scan_ratio() insert into scan_global_lru() condision explictly.
This patch doesn't have any functional change.
Acked-by: Rik van Riel <riel@xxxxxxxxxx>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: Balbir Singh <balbir@xxxxxxxxxx>
Cc: Daisuke Nishimura <nishimura@xxxxxxxxxxxxxxxxx>
Cc: Hugh Dickins <hugh@xxxxxxxxxxx>
Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff -puN mm/vmscan.c~mm-make-get_scan_ratio-safe-for-memcg mm/vmscan.c
--- a/mm/vmscan.c~mm-make-get_scan_ratio-safe-for-memcg
+++ a/mm/vmscan.c
@@ -1376,13 +1376,16 @@ static void get_scan_ratio(struct zone *
zone_nr_pages(zone, sc, LRU_INACTIVE_ANON);
file = zone_nr_pages(zone, sc, LRU_ACTIVE_FILE) +
zone_nr_pages(zone, sc, LRU_INACTIVE_FILE);
- free = zone_page_state(zone, NR_FREE_PAGES);
- /* If we have very few page cache pages, force-scan anon pages. */
- if (unlikely(file + free <= zone->pages_high)) {
- percent[0] = 100;
- percent[1] = 0;
- return;
+ if (scan_global_lru(sc)) {
+ free = zone_page_state(zone, NR_FREE_PAGES);
+ /* If we have very few page cache pages,
+ force-scan anon pages. */
+ if (unlikely(file + free <= zone->pages_high)) {
+ percent[0] = 100;
+ percent[1] = 0;
+ return;
+ }
}
/*
_
Patches currently in -mm which might be from kosaki.motohiro@xxxxxxxxxxxxxx are
origin.patch
getrusage-fill-ru_maxrss-value.patch
softirq-introduce-statistics-for-softirq.patch
proc-export-statistics-for-softirq-to-proc.patch
proc-update-document-for-proc-softirqs-and-proc-stat.patch
ia64-implement-interrupt-enabling-rwlocks.patch
fs-symlink-write_begin-allocation-context-fix-reiser4-fix.patch
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