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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id ED719C07E9D for ; Mon, 26 Sep 2022 16:16:58 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 66BB18E006F; Mon, 26 Sep 2022 12:16:58 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 61B5A8E0066; Mon, 26 Sep 2022 12:16:58 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 50A268E006F; Mon, 26 Sep 2022 12:16:58 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 457258E0066 for ; Mon, 26 Sep 2022 12:16:58 -0400 (EDT) Received: from smtpin24.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 04BCA16011B for ; Mon, 26 Sep 2022 16:16:57 +0000 (UTC) X-FDA: 79954740516.24.011D692 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf13.hostedemail.com (Postfix) with ESMTP id 92F692001C for ; Mon, 26 Sep 2022 16:16:56 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id BFF7D60FB4; Mon, 26 Sep 2022 16:16:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A3CE1C433B5; Mon, 26 Sep 2022 16:16:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1664209015; bh=8eb5D21gEF66inNnQouUMu41BDd99PJhj1rPt0/irjg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=X54TgucB4ynTbW6I5lDo2kqcvFqfnqPGLCg1VJGdA3DWKJBII72OyGbdEWp+8z5BX 2ntH3vaQqraTo1eBhNO159zpBhepDDRdGNu/uLvopzxNb8ve/cu7s9IWptr97Zfczl uInaFtL/aC61c4vgJ5APIBapiyh0CffSk51pdIrJxNTLlshQHIuaaucmGTHo+Bie3S Fcd31a4ojAcs3Jrf44+1mSUdyzyIYX3mLkGtObRIfkAVftnwnP9+E5a/ATXJkzezpG a3EP8IIx7UcomyrFBo866AO6C8cvb6K6kKZarrcv2XvYzHWyOkvyKBa6Sww+x2EKaA P34taTW/5X6bg== From: SeongJae Park To: Xin Hao Cc: sj@kernel.org, akpm@linux-foundation.org, damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v1 1/2] mm/damon: rename sz_damon_region to damon_region_size Date: Mon, 26 Sep 2022 16:16:53 +0000 Message-Id: <20220926161653.48710-1-sj@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220926071100.76379-1-xhao@linux.alibaba.com> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit ARC-Authentication-Results: i=1; imf13.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=X54TgucB; spf=pass (imf13.hostedemail.com: domain of sj@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1664209016; a=rsa-sha256; cv=none; b=nc8gVl+IzvmwzbBcui6N2B0C2h/Hi0Nkps3t+lLQ0+LvMYwI4d8KI2Rf8E3xmKvFt+qd1G vGUyMHmyBKMIgcup32FvFrjPTYEiTscBihW4Co3C/arpxmyhZBs+jNJt3ImoCPCE87Ocgn YU/+6zy6DMjj8wNCwmKiOrmXGrK9pmA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1664209016; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=XiF8DJZU1FU4SNaNh0I+s6aQ4CZO+x6MzEb6geeMOh4=; b=trt3k3p0sIYL3VMAaELWqU0vqzoWAPkiU1RwgzximXL4lQOWL0RboC+xxkORq94D6lgGKX YwYbXfxCynp8F5zqeuAU4XJx8hZT5f+FpUzRV9Gq2JsUmGFb8OU28aZy4AXdRDlI/iJ3Ey Trjt2vp4JJVWapx39Y2BqiublqpeXb4= X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 92F692001C X-Rspam-User: Authentication-Results: imf13.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=X54TgucB; spf=pass (imf13.hostedemail.com: domain of sj@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=none) header.from=kernel.org X-Stat-Signature: atifmwws4h9ddn6gwrxzw7w1zr71rfyb X-HE-Tag: 1664209016-51184 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, 26 Sep 2022 15:10:59 +0800 Xin Hao wrote: > Here, i rename sz_damon_region() to damon_region_size(), and move it to > "include/linux/damon.h", because in many places, we can to use this func. Good idea. > > Signed-off-by: Xin Hao > --- > include/linux/damon.h | 1 + > mm/damon/core.c | 6 +++--- > 2 files changed, 4 insertions(+), 3 deletions(-) > > diff --git a/include/linux/damon.h b/include/linux/damon.h > index ed5470f50bab..21f4bfd0f41f 100644 > --- a/include/linux/damon.h > +++ b/include/linux/damon.h > @@ -524,6 +524,7 @@ void damon_add_region(struct damon_region *r, struct damon_target *t); > void damon_destroy_region(struct damon_region *r, struct damon_target *t); > int damon_set_regions(struct damon_target *t, struct damon_addr_range *ranges, > unsigned int nr_ranges); > +unsigned long damon_region_size(struct damon_region *r); This name looks good enough, but I'd like to suggest damon_sz_region(). What do you think? Also, I'd like to keep this function 'static inline' and put the definition just after that of 'damon_first_region()'. Thanks, SJ > > struct damos *damon_new_scheme(struct damos_access_pattern *pattern, > enum damos_action action, struct damos_quota *quota, > diff --git a/mm/damon/core.c b/mm/damon/core.c > index 4de8c7c52979..74ab45b2c2f1 100644 > --- a/mm/damon/core.c > +++ b/mm/damon/core.c > @@ -864,7 +864,7 @@ static void kdamond_apply_schemes(struct damon_ctx *c) > } > } > > -static inline unsigned long sz_damon_region(struct damon_region *r) > +unsigned long damon_region_size(struct damon_region *r) > { > return r->ar.end - r->ar.start; > } > @@ -875,7 +875,7 @@ static inline unsigned long sz_damon_region(struct damon_region *r) > static void damon_merge_two_regions(struct damon_target *t, > struct damon_region *l, struct damon_region *r) > { > - unsigned long sz_l = sz_damon_region(l), sz_r = sz_damon_region(r); > + unsigned long sz_l = damon_region_size(l), sz_r = damon_region_size(r); > > l->nr_accesses = (l->nr_accesses * sz_l + r->nr_accesses * sz_r) / > (sz_l + sz_r); > @@ -904,7 +904,7 @@ static void damon_merge_regions_of(struct damon_target *t, unsigned int thres, > > if (prev && prev->ar.end == r->ar.start && > abs(prev->nr_accesses - r->nr_accesses) <= thres && > - sz_damon_region(prev) + sz_damon_region(r) <= sz_limit) > + damon_region_size(prev) + damon_region_size(r) <= sz_limit) > damon_merge_two_regions(t, prev, r); > else > prev = r; > -- > 2.31.0 >