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Message-Id: <1434628004-11144-2-git-send-email-sergey.senozhatsky@gmail.com>
Date: Thu, 18 Jun 2015 20:46:38 +0900
From: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To: Minchan Kim <minchan@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
linux-kernel@...r.kernel.org,
Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: [RFC][PATCHv3 1/7] zsmalloc: drop unused variable `nr_to_migrate'
__zs_compact() does not use `nr_to_migrate', drop it.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Acked-by: Minchan Kim <minchan@...nel.org>
---
mm/zsmalloc.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 0a7f81a..7d816c2 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1703,7 +1703,6 @@ static struct page *isolate_source_page(struct size_class *class)
static unsigned long __zs_compact(struct zs_pool *pool,
struct size_class *class)
{
- int nr_to_migrate;
struct zs_compact_control cc;
struct page *src_page;
struct page *dst_page = NULL;
@@ -1714,8 +1713,6 @@ static unsigned long __zs_compact(struct zs_pool *pool,
BUG_ON(!is_first_page(src_page));
- /* The goal is to migrate all live objects in source page */
- nr_to_migrate = src_page->inuse;
cc.index = 0;
cc.s_page = src_page;
@@ -1730,7 +1727,6 @@ static unsigned long __zs_compact(struct zs_pool *pool,
putback_zspage(pool, class, dst_page);
nr_total_migrated += cc.nr_migrated;
- nr_to_migrate -= cc.nr_migrated;
}
/* Stop if we couldn't find slot */
--
2.4.4
--
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