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 9A63CC636D3 for ; Thu, 9 Feb 2023 19:20:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230094AbjBITUY (ORCPT ); Thu, 9 Feb 2023 14:20:24 -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 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 -- 2.25.1