From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E5714C4332F for ; Sat, 19 Nov 2022 01:48:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233243AbiKSBsw (ORCPT ); Fri, 18 Nov 2022 20:48:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48822 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233158AbiKSBs2 (ORCPT ); Fri, 18 Nov 2022 20:48:28 -0500 Received: from 66-220-144-178.mail-mxout.facebook.com (66-220-144-178.mail-mxout.facebook.com [66.220.144.178]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D47F59B7E3 for ; Fri, 18 Nov 2022 17:21:37 -0800 (PST) Received: by dev0134.prn3.facebook.com (Postfix, from userid 425415) id 6272019380D2; Fri, 18 Nov 2022 16:52:18 -0800 (PST) From: Stefan Roesch To: kernel-team@fb.com, linux-block@vger.kernel.org, linux-mm@kvack.org Cc: shr@devkernel.io, axboe@kernel.dk, clm@meta.com, akpm@linux-foundation.org Subject: [RFC PATCH v4 06/20] mm: split off __bdi_set_max_ratio() function Date: Fri, 18 Nov 2022 16:52:01 -0800 Message-Id: <20221119005215.3052436-7-shr@devkernel.io> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221119005215.3052436-1-shr@devkernel.io> References: <20221119005215.3052436-1-shr@devkernel.io> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org This splits off __bdi_set_max_ratio() from bdi_set_max_ratio(). __bdi_set_max_ratio() will also be called from bdi_set_max_bytes(), which will be introduced in the next patch. Signed-off-by: Stefan Roesch --- mm/page-writeback.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 719404e0d03d..e74ef596dc27 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -692,14 +692,10 @@ int bdi_set_min_ratio(struct backing_dev_info *bdi,= unsigned int min_ratio) return ret; } =20 -int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned max_ratio) +static int __bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned in= t max_ratio) { int ret =3D 0; =20 - if (max_ratio > 100) - return -EINVAL; - max_ratio *=3D BDI_RATIO_SCALE; - spin_lock_bh(&bdi_lock); if (bdi->min_ratio > max_ratio) { ret =3D -EINVAL; @@ -711,6 +707,14 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, = unsigned max_ratio) =20 return ret; } + +int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_rat= io) +{ + if (max_ratio > 100) + return -EINVAL; + + return __bdi_set_max_ratio(bdi, max_ratio * BDI_RATIO_SCALE); +} EXPORT_SYMBOL(bdi_set_max_ratio); =20 u64 bdi_get_max_bytes(struct backing_dev_info *bdi) --=20 2.30.2