From patchwork Fri Feb 10 04:48:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: SeongJae Park X-Patchwork-Id: 55217 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:eb09:0:0:0:0:0 with SMTP id s9csp755800wrn; Thu, 9 Feb 2023 20:52:31 -0800 (PST) X-Google-Smtp-Source: AK7set8mpQLy0m+SiPqDQ9m7E2zsNT4N7ZthTpCgMzk+F4RDIEdWOXnzRHpABeZPNgKS0sNWagbi X-Received: by 2002:a17:90a:ea82:b0:233:b1cf:541 with SMTP id h2-20020a17090aea8200b00233b1cf0541mr228765pjz.65.1676004751297; Thu, 09 Feb 2023 20:52:31 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1676004751; cv=none; d=google.com; s=arc-20160816; b=ARvMI4uFE9vBUeAikGjbSUpFwDS6azdHY8htuzOHrBjsFhoPIxJO8Ipw4FFs6Dvx3D 7aI7LIaAkANypqWSnV3odZtT1JN+/YQrQ7xkR50C53aX4NNaXLuoZumrJ9t24weTaOtO rwWxGTWCBFhbj6kVpv7epZst3L/7Qp5gVirVGmAU2Mtko9qPRPZhvCn90pWqAeDuR6gf +DxjT1voKgCwAxYZIXy7HKQFDnuS7n5H4OpJV3UP52K08AfPNt1Qe3yp951jtRh6vy0q Kvtqsy3wHpt8iMhyllLnnUI2KkrcU2nx2VvWeQ1V7lVPT9hjrq7WalLBjwjKVJbwviHN UX7g== 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=gjcfw53uwWR+YkD+PNHhRep8rk27rWQ8HHn7zS/fBuzj5jm/ClEx4PY60aR+isUjii SKjXKxhAvwmlSWg2O5ReZiBqwzYNMxs6sG+w++JljDVFtJfP8jcXRCoz62Jce7e6efMT pbeLqOjK9OvHxIRvpRF7NDgYEQP6xrRFHdRnxirpBnUJw5QcLOjp0D9JEG17QoAeq4tP p9UghIJDlXc3xNZ2z40bfME/jXeEFbvhxEXsrtEGGATK34VaMdGDuVxZznOAq4yMllup 7T88U6l0hYQZTcax3DpQLS78TxmoqTGaclmRLeVC08Am3+BGTr1RBGLROe05yKXEoxgA HYDg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=XdilebEY; 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 p23-20020a170902b09700b00194d0ae0eedsi3188047plr.546.2023.02.09.20.52.18; Thu, 09 Feb 2023 20:52:31 -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=XdilebEY; 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 S231126AbjBJEsy (ORCPT + 99 others); Thu, 9 Feb 2023 23:48:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38600 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230286AbjBJEss (ORCPT ); Thu, 9 Feb 2023 23:48:48 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A5285B74C for ; Thu, 9 Feb 2023 20:48:47 -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 D8D7861C14 for ; Fri, 10 Feb 2023 04:48:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D5971C433A0; Fri, 10 Feb 2023 04:48:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1676004526; bh=3ZPhytsG6MoiFI71uMGAzjRAm4p3c/2mkgqWantxo+I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XdilebEYHnliIo6ccsozIn8z310XX+J4YeoCbW7rHQ02/iln2iXxE9EPvQfBjxLax t3ysfYwi4WsuohmRqftPzIgku530OlwXFpf3XyzBHQjyXWftPiGot3pG6gJwcCoJK3 NTluwuUy5cBGGi1P7UEcU1ZMFeY8ED+DIAgqZw4WjDJqwj+DJOuSP/4PUQmO8Uz265 5KTyBUZzr1t7Oe9UxIM5csHGF8Q8jf6WQe7xmnzaI9a1Se2LloVN9qnQ1LJckDykx6 x4HSp+SsZ6xYd8rw6ZiBjPcRKEaoRozmHkbJ8dttfY+EZtSAVlxs9CZAaveKCXb81/ UzFACfqLtzIRg== From: SeongJae Park To: SeongJae Park , Andrew Morton Cc: damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/3] mm/damon/Kconfig: add DAMON debugfs interface deprecation notice Date: Fri, 10 Feb 2023 04:48:37 +0000 Message-Id: <20230210044838.63723-3-sj@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230210044838.63723-1-sj@kernel.org> References: <20230210044838.63723-1-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?1757418357830162256?= X-GMAIL-MSGID: =?utf-8?q?1757418357830162256?= 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