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| author | Ingo Molnar <mingo@kernel.org> | 2016-05-11 16:56:38 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-05-11 16:56:38 +0200 |
| commit | d2950158d0d7bc376503393ca5f73f6f8d27c56b (patch) | |
| tree | 7daa04400d833bd722258a49d56a39acfb392520 /mm/zsmalloc.c | |
| parent | ea7c28518943b26a85d73cd76acd03b71962cb18 (diff) | |
| parent | e9d848cb65d5f6f7731d12bd1b6d994bfdbcc94f (diff) | |
| download | talos-op-linux-d2950158d0d7bc376503393ca5f73f6f8d27c56b.tar.gz talos-op-linux-d2950158d0d7bc376503393ca5f73f6f8d27c56b.zip | |
Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/zsmalloc.c')
| -rw-r--r-- | mm/zsmalloc.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index e72efb109fde..fe47fbba995a 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -1735,10 +1735,13 @@ static struct page *isolate_source_page(struct size_class *class) static unsigned long zs_can_compact(struct size_class *class) { unsigned long obj_wasted; + unsigned long obj_allocated = zs_stat_get(class, OBJ_ALLOCATED); + unsigned long obj_used = zs_stat_get(class, OBJ_USED); - obj_wasted = zs_stat_get(class, OBJ_ALLOCATED) - - zs_stat_get(class, OBJ_USED); + if (obj_allocated <= obj_used) + return 0; + obj_wasted = obj_allocated - obj_used; obj_wasted /= get_maxobj_per_zspage(class->size, class->pages_per_zspage); |
