The patch titled
swsusp: clean up shrink_all_zones()
has been added to the -mm tree. Its filename is
swsusp-clean-up-shrink_all_zones.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: swsusp: clean up shrink_all_zones()
From: Johannes Weiner <hannes@xxxxxxxxxxx>
Move local variables to innermost possible scopes and use local
variables to cache calculations/reads done more than once.
No change in functionality (intended).
Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: "Rafael J. Wysocki" <rjw@xxxxxxx>
Cc: Pavel Machek <pavel@xxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 23 +++++++++++------------
1 file changed, 11 insertions(+), 12 deletions(-)
diff -puN mm/vmscan.c~swsusp-clean-up-shrink_all_zones mm/vmscan.c
--- a/mm/vmscan.c~swsusp-clean-up-shrink_all_zones
+++ a/mm/vmscan.c
@@ -2057,31 +2057,31 @@ static unsigned long shrink_all_zones(un
int pass, struct scan_control *sc)
{
struct zone *zone;
- unsigned long nr_to_scan, ret = 0;
- enum lru_list l;
+ unsigned long ret = 0;
for_each_zone(zone) {
+ enum lru_list l;
if (!populated_zone(zone))
continue;
-
if (zone_is_all_unreclaimable(zone) && prio != DEF_PRIORITY)
continue;
for_each_evictable_lru(l) {
+ enum zone_stat_item ls = NR_LRU_BASE + l;
+ unsigned long lru_pages = zone_page_state(zone, ls);
+
/* For pass = 0, we don't shrink the active list */
- if (pass == 0 &&
- (l == LRU_ACTIVE || l == LRU_ACTIVE_FILE))
+ if (pass == 0 && (l == LRU_ACTIVE_ANON ||
+ l == LRU_ACTIVE_FILE))
continue;
- zone->lru[l].nr_scan +=
- (zone_page_state(zone, NR_LRU_BASE + l)
- >> prio) + 1;
+ zone->lru[l].nr_scan += (lru_pages >> prio) + 1;
if (zone->lru[l].nr_scan >= nr_pages || pass > 3) {
+ unsigned long nr_to_scan;
+
zone->lru[l].nr_scan = 0;
- nr_to_scan = min(nr_pages,
- zone_page_state(zone,
- NR_LRU_BASE + l));
+ nr_to_scan = min(nr_pages, lru_pages);
ret += shrink_list(l, nr_to_scan, zone,
sc, prio);
if (ret >= nr_pages)
@@ -2089,7 +2089,6 @@ static unsigned long shrink_all_zones(un
}
}
}
-
return ret;
}
_
Patches currently in -mm which might be from hannes@xxxxxxxxxxx are
origin.patch
migration-migrate_vmas-should-check-vma.patch
linux-next.patch
powerpc-fix-code-for-reserved-memory-spanning-across-nodes.patch
swsusp-clean-up-shrink_all_zones.patch
swsusp-dont-fiddle-with-swappiness.patch
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