From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751558AbbCTHnV (ORCPT ); Fri, 20 Mar 2015 03:43:21 -0400 Received: from mailout1.samsung.com ([203.254.224.24]:10941 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750977AbbCTHnT (ORCPT ); Fri, 20 Mar 2015 03:43:19 -0400 X-AuditID: cbfee6a1-f799b6d000003ba9-08-550bcf953402 Date: Fri, 20 Mar 2015 07:43:17 +0000 (GMT) From: Yinghao Xie Subject: [PATCH] mm/zsmalloc.c: fix comment for get_pages_per_zspage To: Andrew Morton Cc: Minchan Kim , Nitin Gupta , mm , lkml Reply-to: yinghao.xie@samsung.com MIME-version: 1.0 X-MTR: 20150320074006178@yinghao.xie Msgkey: 20150320074006178@yinghao.xie X-EPLocale: zh_CN.utf-8 X-Priority: 3 X-EPWebmail-Msg-Type: personal X-EPWebmail-Reply-Demand: 0 X-EPApproval-Locale: X-EPHeader: ML X-MLAttribute: X-RootMTR: 20150320074006178@yinghao.xie X-ParentMTR: X-ArchiveUser: X-CPGSPASS: N X-ConfirmMail: N,general Content-type: text/plain; charset=utf-8 MIME-version: 1.0 Message-id: <444988883.44981426837395023.JavaMail.weblogic@epmlwas06d> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrPIsWRmVeSWpSXmKPExsVy+t/tXt2p57lDDWZtZLO4vGsOmwOjx+dN cgGMUVw2Kak5mWWpRfp2CVwZX7e+Yy/4xF5x8uEvxgbGK+xdjJwcQgJqEh0rXjOB2BICJhJL Hnxgg7DFJC7cWw9kcwHVzGGUOLz1DiNIgkVAVWLV5QfMXYwcHGwCOhLbjumAhIUFXCRmnpoA NkdEQF9i3pLJTCC9zAITGSWOdUxiglimKNHwejULiM0rIChxcuYTFohlKhL9PedYIeKqEjfv NTBCxMUlPk28CnUQr8SM9qdQ9XIS076uYYawpSXOz9rACHP04u+PoeL8Esdu74B6TEBi6pmD UDWaEu/nXWeFsPkk1ix8ywJTv+vUcmaYXfe3zIXqlZDY2vIErJ4Z6P4p3Q/ZQX5nBpqzfpc+ uld4BdwkLi+bzjyBUXYWktQsJN2zELqRlSxgZFnFKJpakFxQnJReYahXnJhbXJqXrpecn7uJ ERzNzxbuYPxy3voQowAHoxIP74FS7lAh1sSy4srcQ4wSHMxKIrwem4BCvCmJlVWpRfnxRaU5 qcWHGKU5WJTEef+fyw0REkhPLEnNTk0tSC2CyTJxcEo1MBbZL38RcCXr4Z9JR7MXar/13TXL 9McShZx1Hl5xq10d4npM3JysI3ReHVwqKDExo+SdxMmHO09wRt68M0Eodqvlj6+2L4UPK7pu 3D35h13tilch+Xf/GP9i/5NWfP7Gwk1vxJ5z3PGapX3+lb71Y/bU/uuutY6NLssO8YWkMfjP sLWVbI8UZVBiKc5INNRiLipOBABGO6Gl4gIAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by nfs id t2K7hP5R023472 Suggested-by: Minchan Kim Signed-off-by: Yinghao Xie --- mm/zsmalloc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 461243e..3e613cc 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -760,7 +760,8 @@ out: * to form a zspage for each size class. This is important * to reduce wastage due to unusable space left at end of * each zspage which is given as: - * wastage = Zp - Zp % size_class + * wastage = Zp % class_size + * usage = Zp - wastage * where Zp = zspage size = k * PAGE_SIZE where k = 1, 2, ... * * For example, for size class of 3/8 * PAGE_SIZE, we should -- 1.7.9.5 {.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I