From: Minchan Kim <minchan@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Minchan Kim <minchan@kernel.org>
Subject: [PATCH] zsmalloc: use class->pages_per_zspage
Date: Thu, 16 Jul 2015 08:42:44 +0900 [thread overview]
Message-ID: <1437003764-2968-1-git-send-email-minchan@kernel.org> (raw)
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: Minchan Kim <minchan@kernel.org>
---
mm/zsmalloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 27b9661c8fa6..154a30e9c8a8 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)
--
1.9.1
next reply other threads:[~2015-07-15 23:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-15 23:42 Minchan Kim [this message]
2015-07-16 0:02 ` [PATCH] zsmalloc: use class->pages_per_zspage Sergey Senozhatsky
2015-07-16 0:11 ` Minchan Kim
2015-07-16 0:13 ` Sergey Senozhatsky
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1437003764-2968-1-git-send-email-minchan@kernel.org \
--to=minchan@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=sergey.senozhatsky@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).