The commit is pushed to "branch-rh7-3.10.0-229.7.2.vz7.9.x-ovz" and will appear
at https://src.openvz.org/scm/ovz/vzkernel.git
after rh7-3.10.0-229.7.2.vz7.9.10
------>
commit 8a5c219c8107c30f19d7f0ec0c3b0c016dafb637
Author: Vladimir Davydov <vdavy...@virtuozzo.com>
Date: Wed Nov 18 17:05:33 2015 +0400
tcache: account reclaimed pages to scan_control->nr_reclaimed
Tcache pages might constitute a substantial portion of the total number
of pages reclaimed. Since they are freed immediately, we should count
them to scan_control->nr_reclaimed to avoid premature scan->priority
drops and resulting overreclaim.
Signed-off-by: Vladimir Davydov <vdavy...@virtuozzo.com>
---
mm/tcache.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/mm/tcache.c b/mm/tcache.c
index ce5b0ed..e8ffa91 100644
--- a/mm/tcache.c
+++ b/mm/tcache.c
@@ -17,6 +17,7 @@
#include <linux/completion.h>
#include <linux/shrinker.h>
#include <linux/vmstat.h>
+#include <linux/swap.h>
#include <linux/cleancache.h>
/* cleancache_put_page is called from atomic context */
@@ -808,6 +809,8 @@ static unsigned long tcache_shrink_scan(struct shrinker
*shrink,
}
sc->nr_to_scan--;
}
+ if (current->reclaim_state)
+ current->reclaim_state->reclaimed_slab += nr_reclaimed;
return nr_reclaimed;
}
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