From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793237653; b=xN/1pCdG4RZPB1aIBcQm22SW0tQH++TxeozYaW9oTnaV9q2qMukbAVPBpQ2RPi+38ucP SClGJd1QoRY6XHaUanMiWMWCkKZuQ21ffnEbYoSrnaEZO/Dgch+h4pQYp/kdms7jJa7Z8 oYfgXUxQsbGxJB3x1P9wnTY0WP9rLZD+/iFtHa0z1kbL6zuC2y5wSFDRFRbSOmemO2Dz+ 5tAmeAOPr5qoeBPouq5B9tpCb0cPOIxbe/hmLXHRc47XVY4G8feu/il4RNwlJdkksctQq lb9R36tJAyEKM1MqzyUJJkBeeoEa13QRat+GTlq7+BQlk4COMoRd6dLZRjtXcItcv8A== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793237653; h=Received:DKIM-Signature:Message-ID:Date:MIME-Version:User-Agent:Cc: Subject:To:References:Content-Language:From:In-Reply-To:Content-Type: Content-Transfer-Encoding; bh=g3i67qdTmeI4QwtWjq2CBi54hJqSscZ9bcsHrw5POxY=; b=zwjaoHpHI7lrPIhf2aF19TzmRQTeus2fKi0scobkNA16pZaJtAVHW/USACl6+lzvzjbb Bbzbe0T6/qOmA7hfbSK2Y+SmkFqTgVlhxFiIshjC+2rRDczOoKLK/d58WDWU41kVn89s8 DMRGlKaqA6VOhUKt2rQnoHG9t2FyRqRgl+I6dHwbrfwP5L0HvxIptWl+CHA1PmBV87USl J4N48qeCTMGRvkU7h6MBvXGzgkKoninaVwNVGxk/2WYBHjaQS3krx3DKNU8w2GqnO01Jm Y84Q042KYgVzBZD2t2us4q7972gwM1/sfokPxwn5clWQT3/TIpCI758OCE7vL/cLnwg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=RbyCPu5J; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1E6C7606A31A for ; Thu, 29 Oct 2026 01:34:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=RbyCPu5J Received: by smtp.kernel.org (Postfix) with ESMTPSA id 52BE21F01825; Thu, 29 Oct 2026 01:34:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793237652; bh=g3i67qdTmeI4QwtWjq2CBi54hJqSscZ9bcsHrw5POxY=; h=Date:Cc:Subject:To:References:From:In-Reply-To; b=RbyCPu5JUZ/Se4TXJsHTpuXrqIakttrPppgqJXRlN+RxfWJxvR20youROmC10w5hW OQJ/2XZPIrrlWbXpmSS3S3+x55pqoFBbdhFiBZfwDcL54TksyimIcLzCR+wUMhFx5l 4tkgOAosO5USzMobFWOr6lQR2F7NRkDdSzT9gWWMPe9coLO1w2ix5yHNMH4TVp5x3j wOTjj6JWTCqjRNUQV28QD/RU85UcuYhLgg2P3PNFf2fCWEmyDpR7q/8jRJ3gWljQQ+ GSYuXnQJptNmG4DLURK7BaO/DFsA7XtYZmqhAPkDZBiH8qFB/OeUxcmv06n1xqeWQL +nxVMnArhBJsw== Message-ID: Date: Thu, 29 Oct 2026 09:34:08 +0800 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Cc: chao@kernel.org, Barry Song , Juan Yescas , Daeho Jeong , Pengfei Li , Dev Jain , David Hildenbrand , linux-kernel@vger.kernel.org, Bo Zhang , Kalesh Singh , Nanzhe Zhao , Nanzhe Zhao , Ryan Roberts Subject: Re: [PATCH v8 11/15] f2fs: handle partial truncate of large folio dirty subpages To: Nanzhe Zhao , linux-f2fs-devel@lists.sourceforge.net, Jaegeuk Kim References: <20261028154407.1601430-1-nzzhao.sigma@gmail.com> <20261028154407.1601430-12-nzzhao.sigma@gmail.com> Content-Language: en-US From: Chao Yu In-Reply-To: <20261028154407.1601430-12-nzzhao.sigma@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 10/28/26 23:44, Nanzhe Zhao wrote: > From: Nanzhe Zhao > > A large folio can be partial truncated and stays in folio mapping, we > need to clear the subrange dirty bits and uptodate bits that the partial > truncate covers. If this partial truncate happens to clear the last > subrange dirty bits, then cancel the whole folio dirty state. > > Also add a guard in f2fs_write_folio_dirty_range() so a large folio > subpage whose disk block was already truncated (NULL_ADDR) is skipped > > Signed-off-by: Nanzhe Zhao Reviewed-by: Chao Yu Thanks,