From patchwork Wed Jan 15 22:16:50 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jaegeuk Kim X-Patchwork-Id: 13940980 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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 073BBC02180 for ; Wed, 15 Jan 2025 22:18:33 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-1.v29.lw.sourceforge.com) by sfs-ml-1.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1tYBiZ-0004lg-M9; Wed, 15 Jan 2025 22:18:32 +0000 Received: from [172.30.29.66] (helo=mx.sourceforge.net) by sfs-ml-1.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1tYBiX-0004lX-WD for linux-f2fs-devel@lists.sourceforge.net; Wed, 15 Jan 2025 22:18:30 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:Message-ID: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=ZH3FC8jLJrToI4zTUxTYu7lPzGVMNcokhjRaRCl9R6U=; b=g8X9rh7c3ZsxMPi8GbcRiZYPDm o+ddiX6u8VZGCbGrrGlrisZIg91Jgxk0vmsziV/rle1ho0i+HAY5w8hIug3Hizbm/2WAaGJDE4zr2 1brHcCnGVkhM89VVqUZZtpxgznML2srKJ8verRgeOYnS4dAerGrRriOdaeySHzmsPs0Q=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject:Cc:To:From :Sender:Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post: List-Owner:List-Archive; bh=ZH3FC8jLJrToI4zTUxTYu7lPzGVMNcokhjRaRCl9R6U=; b=P 64wyVioS2tsb7OR9KV03+acNDjmGNXz2RJoSCFNipBfc6xQsCorhwp9vwwRmIHGmLuLkHgGjljAC4 2ciz/KEy8XL0G6a+lFYCevb6X5ezMwqUpSQGBoPq6tvTWg6mJu/liqHPIO2CTidLQ9evPbo30nr0w PwR06o10RRdhNojY=; Received: from dfw.source.kernel.org ([139.178.84.217]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1tYBiY-0002T9-67 for linux-f2fs-devel@lists.sourceforge.net; Wed, 15 Jan 2025 22:18:30 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 127F55C5F0C for ; Wed, 15 Jan 2025 22:17:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 72980C4CED1; Wed, 15 Jan 2025 22:18:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1736979499; bh=4kIsyU5rXlE9mJi6lc1dgFWaOsh3YjfD1MJ8YxXEfHE=; h=From:To:Cc:Subject:Date:From; b=CiZhLZis9cbUuPEn8ToQCFY/JaNvClQNwvbK2d/zIc9vZGLzhUgzL6DZnInE+BJ65 /NEqory891caawzwM6y1dB2Ow6YNB/Y0JqFaRXtqz0yJCV1UaJNdqX28wQNb8SU6TA XqGeq5XGNVY1Bh1SdenM+favpDOPr+RB21vgja3U0K1VUvPoXyDWrqGNszsBKNPSKs G70loWi5s+3uI9jIPi1nNuxOWNb/sQOWGC70B2zJiTaD/iM5Aeun1oaUT676LZFFiZ j5yxBdMtvUAzNzKdNaVqmRXGhH7yht0I/WstHD8TcpgKMNa8BANEkBCnHHfctzrJ3v CfWE/m3lbndlQ== To: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Date: Wed, 15 Jan 2025 22:16:50 +0000 Message-ID: <20250115221814.1920703-1-jaegeuk@kernel.org> X-Mailer: git-send-email 2.48.0.rc2.279.g1de40edade-goog MIME-Version: 1.0 X-Headers-End: 1tYBiY-0002T9-67 Subject: [f2fs-dev] [PATCH 0/2 v3] add ioctl/sysfs to donate file-backed pages X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Jaegeuk Kim via Linux-f2fs-devel From: Jaegeuk Kim Reply-To: Jaegeuk Kim Cc: Jaegeuk Kim Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net If users clearly know which file-backed pages to reclaim in system view, they can use this ioctl() to register in advance and reclaim all at once later. Change log from v2: - add more boundary checks - de-register the range, if len is zero Jaegeuk Kim (2): f2fs: register inodes which is able to donate pages f2fs: add a sysfs entry to request donate file-backed pages Documentation/ABI/testing/sysfs-fs-f2fs | 7 +++ fs/f2fs/debug.c | 3 ++ fs/f2fs/f2fs.h | 14 +++++- fs/f2fs/file.c | 64 +++++++++++++++++++++++++ fs/f2fs/inode.c | 14 ++++++ fs/f2fs/shrinker.c | 27 +++++++++++ fs/f2fs/super.c | 1 + fs/f2fs/sysfs.c | 8 ++++ include/uapi/linux/f2fs.h | 7 +++ 9 files changed, 144 insertions(+), 1 deletion(-)