There is no need to recalcurate pages_per_zspage in runtime.
Just use class->pages_per_zspage to avoid unnecessary runtime
overhead.
* From v1
* fix up __zs_compact - Sergey
Signed-off-by: Minchan Kim <minc...@kernel.org>
---
mm/zsmalloc.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 27b9661c8fa6..c9685bb2bb92 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1711,7 +1711,7 @@ static unsigned long zs_can_compact(struct size_class
*class)
obj_wasted /= get_maxobj_per_zspage(class->size,
class->pages_per_zspage);
- return obj_wasted * get_pages_per_zspage(class->size);
+ return obj_wasted * class->pages_per_zspage;
}
static void __zs_compact(struct zs_pool *pool, struct size_class *class)
@@ -1749,8 +1749,7 @@ static void __zs_compact(struct zs_pool *pool, struct
size_class *class)
putback_zspage(pool, class, dst_page);
if (putback_zspage(pool, class, src_page) == ZS_EMPTY)
- pool->stats.pages_compacted +=
- get_pages_per_zspage(class->size);
+ pool->stats.pages_compacted += class->pages_per_zspage;
spin_unlock(&class->lock);
cond_resched();
spin_lock(&class->lock);
--
1.9.1
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