Use vm_swappiness from memory cgroup which is triggered this memory reclaim.
This is more reasonable and allows to kill one argument.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxx>
---
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-2 (-2)
function old new delta
shrink_mem_cgroup_zone 1583 1581 -2
---
mm/vmscan.c | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 9a41769..95719f3 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1859,12 +1859,11 @@ static unsigned long shrink_list(enum lru_list lru, unsigned long nr_to_scan,
return shrink_inactive_list(nr_to_scan, mz, sc, priority, lru);
}
-static int vmscan_swappiness(struct mem_cgroup_zone *mz,
- struct scan_control *sc)
+static int vmscan_swappiness(struct scan_control *sc)
{
if (global_reclaim(sc))
return vm_swappiness;
- return mem_cgroup_swappiness(mz->mem_cgroup);
+ return mem_cgroup_swappiness(sc->target_mem_cgroup);
}
/*
@@ -1933,8 +1932,8 @@ static void get_scan_count(struct mem_cgroup_zone *mz, struct scan_control *sc,
* With swappiness at 100, anonymous and file have the same priority.
* This scanning priority is essentially the inverse of IO cost.
*/
- anon_prio = vmscan_swappiness(mz, sc);
- file_prio = 200 - vmscan_swappiness(mz, sc);
+ anon_prio = vmscan_swappiness(sc);
+ file_prio = 200 - vmscan_swappiness(sc);
/*
* OK, so we have swap space and a fair amount of page cache
--
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