From patchwork Thu Jan 16 04:41:59 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jaegeuk Kim X-Patchwork-Id: 13941189 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 54DB7C02180 for ; Thu, 16 Jan 2025 04:42:57 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-2.v29.lw.sourceforge.com) by sfs-ml-2.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1tYHia-0006Oc-Vn; Thu, 16 Jan 2025 04:42:56 +0000 Received: from [172.30.29.66] (helo=mx.sourceforge.net) by sfs-ml-2.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1tYHiZ-0006OI-Fv for linux-f2fs-devel@lists.sourceforge.net; Thu, 16 Jan 2025 04:42:55 +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=e1j7LCxByx8yYz8i0QrYdXQyBY0xmaOs7nhqSOmFKHo=; b=isl/YZdPhVoa3bmQ23iJLPAY19 nbL6VNWsm/w57BUZ2ZmPNNHu4MOWNxAZKyndFnYaDFJni8e7zEBvPaMI0bzdrCC+PziAJ/fAvnjOT pxVXeg1vCzSLjEZgfAFgV0d6VxfgZR7vmfZK0VSQdeE9I81fF9ERho/Ruq9x5drX1020=; 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=e1j7LCxByx8yYz8i0QrYdXQyBY0xmaOs7nhqSOmFKHo=; b=X t2M2zdwydClUHTZBEjf6Xs+Xs2OLs46f68tRK5wo7FC0u6h1MRlR126sUWEYGPAnazGHzdreUjgqt 4m0aauXFDc/fzu/y6gxD+L5BQS47hR1PXytXRnhWu8/ScL1TAE7l6PhoIwztqDXQnIU2wOakX1GEb alVnQkMGIzWv42o4=; Received: from nyc.source.kernel.org ([147.75.193.91]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1tYHiY-0002wm-Ab for linux-f2fs-devel@lists.sourceforge.net; Thu, 16 Jan 2025 04:42:54 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 900D2A40A69 for ; Thu, 16 Jan 2025 04:41:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 28731C4CED6; Thu, 16 Jan 2025 04:42:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1737002568; bh=wXFFaKVeJuADTmkChw2w9Gj1NWKnpWpmBtYn2vyGrjQ=; h=From:To:Cc:Subject:Date:From; b=bI5+VqQenY4hLfbHE34MPhGI3TM156CW+dP8nz+r6Ftm4LZ4fgY8r4MKGynpqMphi SMfRPPFQ8H8fA24CmVUF6ODOmPLDC262cSrszQX+XU0LXVN3iUvlZd4HUmr6bsUMwZ en0Xl6vE+0NanhXbnZgNwilQLGZ6A5Hq47lIHbyed/rnXTRi7WuGLymaDdSXlbIMli +A5nZ01CBZR3ixa+bTFz/nO38DvGRYAMevJZSKeTMXldTjhprlhCgbh7pqLkKKC2CD y2PQfFE2qVGpPIKVeiprjydgnZdDwxyC9JvZk2flnOQr/WEftytGiODibIVPbIuIxC 3nFNiQX28ce4g== To: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Date: Thu, 16 Jan 2025 04:41:59 +0000 Message-ID: <20250116044245.1995715-1-jaegeuk@kernel.org> X-Mailer: git-send-email 2.48.0.rc2.279.g1de40edade-goog MIME-Version: 1.0 X-Headers-End: 1tYHiY-0002wm-Ab Subject: [f2fs-dev] [PATCH 0/2 v4] 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 v3: - cover partial range 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 | 65 +++++++++++++++++++++++++ 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, 145 insertions(+), 1 deletion(-)