From patchwork Thu Feb 9 19:20:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: SeongJae Park X-Patchwork-Id: 55071 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:eb09:0:0:0:0:0 with SMTP id s9csp527487wrn; Thu, 9 Feb 2023 11:25:18 -0800 (PST) X-Google-Smtp-Source: AK7set88mpIi4HTOyx5Vo6Bx10g2fUTkAyuJ2moTuYoBQNfi/8KSY4iUJMIbG7ZogX0ipdME9IIQ X-Received: by 2002:a50:d5d9:0:b0:4ab:1584:c0d6 with SMTP id g25-20020a50d5d9000000b004ab1584c0d6mr6903930edj.32.1675970718770; Thu, 09 Feb 2023 11:25:18 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1675970718; cv=none; d=google.com; s=arc-20160816; b=H4nxyhJEkHUxn2qjJcZhC/1Wv49S5J7y56UG8+x0b/buFh5cvuNVGdK8KJ5Z0FKCId Nxb8iEfpV5ZJTIekLOtGzR3++NIuvmmnPvGiSlFpHeohOvXxZu2j2aFyuYriIEhEKwJJ +OJJ78ynA/1Khy9d5cXTCyt74XcehNopVkG1D7MflaMIYKA0Nv+EfJo09sO5NtIGxLlm qTncmIO0DVnnbiiZ0XsCitwOXpoJtL8JMOXTUMos1s3EZahlAR1R2rEwupxC+LOMuPkn tvLK49cyugLaYr58DjpkKcaXRuySOnl9Ttv+cNTzR7eHJPPjtqb3OHmfHI+XszIlxiYl 57wg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=GMhQv0JeYHPs+Hm+FPEG1Rx/DU8HSBna4LuCCkQZS2A=; b=vqPQehQYPkpUqPKSpB+tl9nppmGxcHze7a33ckMVmegwuJh9n/WHSfKQ+OFL3whzJi Wc8wcNl/9O8SdJ2N+BmybA5yt1Qpr5AEz/hN5e3UMfbU/MYYVLz4JPUB7fQu1E0qKhNz A/yCdDWT/Li/DZVFJbplqeqZaA618/8Pp8qaflYPRi88HB91uwh2/v9+LU51nGmlK4op o37xhpgHj9yJxqlRXer3xtF78TQdSH3U1838Zb6VFe05yDae2SbvZ/FT2s7HDPbQlP/J FVx8lFOfNCwAGXb2RJjQ4hyJsEW0ZjukyfiKPdCRCzyta6jqyXUCu0yG6RgsgoF4WwJz e7gw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b="rA9v/IlA"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id g4-20020a056402114400b0048e82d753a3si2961229edw.227.2023.02.09.11.24.55; Thu, 09 Feb 2023 11:25:18 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b="rA9v/IlA"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230087AbjBITUX (ORCPT + 99 others); Thu, 9 Feb 2023 14:20:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49532 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229836AbjBITUS (ORCPT ); Thu, 9 Feb 2023 14:20:18 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 438504740B for ; Thu, 9 Feb 2023 11:20:17 -0800 (PST) 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 D394D61B9A for ; Thu, 9 Feb 2023 19:20:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E2561C433A0; Thu, 9 Feb 2023 19:20:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1675970416; bh=3ZPhytsG6MoiFI71uMGAzjRAm4p3c/2mkgqWantxo+I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rA9v/IlAimkmQzJd9fC7BNDYoPRQfdmYdGr+BsMUvy6S1DlXT51Ze4eoQXL+sPJej saLINvtg1Ytlv865eJ5j2Tv8XVxFNX6a+4wtC9SaFulcqmopRSukl9hmpf11dKstlN +QYIu/tzbD+w+BSs7eqEOgDdxDn5MExI0Gzhea5qwmoaSOzQNpgt68WwOdoOD7/OH0 bEIifYbc7ua2i4DE53Awy0TLV7o64OPnHiwTruOuFRURpYproX4HVWe/wBmJTG5yM2 e7UvDENGm8vA0b/rWFcbw/96jTHVryPSdrKOSnhIl69NwvCEDoXV2m+URReTq6okbt dFDxxllM6tZRA== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/3] mm/damon/Kconfig: add DAMON debugfs interface deprecation notice Date: Thu, 9 Feb 2023 19:20:08 +0000 Message-Id: <20230209192009.7885-3-sj@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230209192009.7885-1-sj@kernel.org> References: <20230209192009.7885-1-sj@kernel.org> MIME-Version: 1.0 X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1757382672871550536?= X-GMAIL-MSGID: =?utf-8?q?1757382672871550536?= DAMON debugfs interface has announced to be deprecated after >v5.15 LTS kernel is released. And, v6.1.y has announced to be an LTS[1]. Though the announcement was there for a while, some people might not noticed that so far. Also, some users could depend on it and have problems at movng to the alternative (DAMON sysfs interface). For such cases, note DAMON debugfs interface as deprecated, and contacts to ask helps on the Kconfig. [1] https://git.kernel.org/pub/scm/docs/kernel/website.git/commit/?id=332e9121320bc7461b2d3a79665caf153e51732c Signed-off-by: SeongJae Park --- mm/damon/Kconfig | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig index 7821fcb3f258..436c6b4cb5ec 100644 --- a/mm/damon/Kconfig +++ b/mm/damon/Kconfig @@ -60,7 +60,7 @@ config DAMON_SYSFS the interface for arbitrary data access monitoring. config DAMON_DBGFS - bool "DAMON debugfs interface" + bool "DAMON debugfs interface (DEPRECATED!)" depends on DAMON_VADDR && DAMON_PADDR && DEBUG_FS help This builds the debugfs interface for DAMON. The user space admins @@ -68,8 +68,9 @@ config DAMON_DBGFS If unsure, say N. - This will be removed after >5.15.y LTS kernel is released, so users - should move to the sysfs interface (DAMON_SYSFS). + This is deprecated, so users should move to the sysfs interface + (DAMON_SYSFS). If you depend on this and cannot move, please report + your usecase to damon@lists.linux.dev and linux-mm@kvack.org. config DAMON_DBGFS_KUNIT_TEST bool "Test for damon debugfs interface" if !KUNIT_ALL_TESTS