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 79072C38145 for ; Thu, 8 Sep 2022 18:01:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231641AbiIHSBY (ORCPT ); Thu, 8 Sep 2022 14:01:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55198 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230078AbiIHSBW (ORCPT ); Thu, 8 Sep 2022 14:01:22 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 43E15F10C8 for ; Thu, 8 Sep 2022 11:01:20 -0700 (PDT) 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 ams.source.kernel.org (Postfix) with ESMTPS id 90884B821DC for ; Thu, 8 Sep 2022 18:01:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C9ED4C433D6; Thu, 8 Sep 2022 18:01:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1662660078; bh=Eyd2f05euQSrEzSKY+ufNZEqbz628QYuj+cOfZCVgsI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=N3ufNtX2TZLK5JUIePjDK/1DoHi233A3+qec1xZgYh2N7ixgnrTO4VcB4hnjvfFwj XV8+G/lxu0GdoLUSgUorkwnCUgQqdLOiJxRJz/NGKhA7td8zTjQOC7jgWTlHj+pJIw gyU/iwWIKsVY/uYiPEZSQ/JyJpu/YxNeS8m6RyOgRvj/u0sWBXdm9I4CeFg3aUJ+iO +V/nPDixo8kMEWsf6mEy2ag7d6SJKQxdVN9PpN29oOE5VHk1LCMtwa3Tu/Ypba4kZ6 BU7pOZe4oe1u9Rnn/ZlAFEs4FrpBKRk4aM3y4b7ixvteaIiKG3qhyyYYC1aU4ioySJ m1eYt6wAH+12Q== 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 V2] mm/damon: simplify damon_ctx check in damon_sysfs_before_terminate Date: Thu, 8 Sep 2022 18:01:15 +0000 Message-Id: <20220908180116.33879-1-sj@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220908021912.70481-1-xhao@linux.alibaba.com> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Just for a record. Apparently Andrew has already added this in mm: https://lore.kernel.org/mm-commits/20220907223146.C7CF4C433D6@smtp.kernel.org/ Thanks, SJ On Thu, 8 Sep 2022 10:19:12 +0800 Xin Hao wrote: > In damon_sysfs_before_terminate() func, it need to check whether > ctx->ops.id supports 'DAMON_OPS_VADDR' or 'DAMON_OPS_FVADDR', there we > can use damon_target_has_pid() instead. > > Signed-off-by: Xin Hao > Reviewed-by: SeongJae Park > --- > mm/damon/sysfs.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c > index 7488e27c87c3..88f208ff235d 100644 > --- a/mm/damon/sysfs.c > +++ b/mm/damon/sysfs.c > @@ -2309,7 +2309,7 @@ static void damon_sysfs_before_terminate(struct damon_ctx *ctx) > { > struct damon_target *t, *next; > > - if (ctx->ops.id != DAMON_OPS_VADDR && ctx->ops.id != DAMON_OPS_FVADDR) > + if (!damon_target_has_pid(ctx)) > return; > > mutex_lock(&ctx->kdamond_lock); > -- > 2.31.0