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Commit 6cbf16b3 authored by Minchan Kim's avatar Minchan Kim Committed by Linus Torvalds
Browse files

zsmalloc: use class->pages_per_zspage 



There is no need to recalcurate pages_per_zspage in runtime.  Just use
class->pages_per_zspage to avoid unnecessary runtime overhead.

Signed-off-by: default avatarMinchan Kim <minchan@kernel.org>
Acked-by: default avatarSergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent ad9d5e17

mm/zsmalloc.c

+2 −3
Original line number Diff line number Diff line
@@ -1723,7 +1723,7 @@ 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)
@@ -1761,8 +1761,7 @@ 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);