From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D123929BDBF for ; Tue, 2 Dec 2025 18:07:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764698873; cv=none; b=G1xUVxI6nrPr3RIsoiq4ttCwvcVfpVBSWGBL9ymDoq57q6hyWwOQXjdlPsYpBSpKhrpnNNQMJW/cNIXXboQFGZi1wRiYTeEdx5/TrV7ZxcZx2OI4+g/0ZxJo8WwYMFSCn1nayAcpF4vwUsGHm1K6b6JZzsx5Z8nu6sguycqtDIc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764698873; c=relaxed/simple; bh=lNMThDcnBs33yUKf9ipOCpdmS/d1fCekztUjy0LIXHo=; h=Message-ID:Date:MIME-Version:Cc:Subject:To:References:From: In-Reply-To:Content-Type; b=ake85SGdP1yb7z+b5K74l1IKHuJPQlIdZhuzRolL3ytwKSWZlH5P+O/ov+c6bWCmu6/i3AtCOXUNLu5SoHQplH7epuUF0oU8MyZzdpNy+w0+3/SL99Eo7xx7Rhipk9Rg0LHGaiqirmOJuXYZ56KSOQpv4DnvhPKumU9ANlYpfR4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kKLJrHnb; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="kKLJrHnb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D8192C116D0; Tue, 2 Dec 2025 18:07:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764698873; bh=lNMThDcnBs33yUKf9ipOCpdmS/d1fCekztUjy0LIXHo=; h=Date:Cc:Subject:To:References:From:In-Reply-To:From; b=kKLJrHnb9XDzygJeHgCdudXHPqiwCrTzWtqlL5mIjlbLjeOwge8MvwnfwI2IY4DGk DUY08VqRVUaVeHrJNv2WABHBAN71GuDChotxOIsa/fMdPdFdnuj6reuHqjCzLxmlN4 PY3EBr2wgceoiaZyRxLs6VakjcKza11VQo38DU4/IUb9WlQY+3OlEd/qGSd/oY2s79 IwiKP83rOSwOn0r06DRZDAbHDbkRtJ5vnEcA5VskYyslNyikFOnAT2EefJd0MMbbpK uMbWSRaJ0Qhwt4Oikrnd/bGlKeDZY4/e6dlMGSZ1cdZCnXPyn3fp6sPpJJx59MFVVp GlCnz4SPvuGHg== Message-ID: <97ecd003-e3bf-4112-80e5-d2db31484471@kernel.org> Date: Tue, 2 Dec 2025 10:07:51 -0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Cc: chao@kernel.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Subject: Re: [f2fs-dev] [PATCH 1/2 v4] f2fs: support large folio for immutable non-compressed case To: Jaegeuk Kim References: <20251120235446.1947532-1-jaegeuk@kernel.org> <0153ff69-789d-4fe1-a89c-0c607a9a7d6c@kernel.org> Content-Language: en-US From: Chao Yu In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 2025/12/2 10:38, Jaegeuk Kim wrote: > This patch enables large folio for limited case where we can get the high-order > memory allocation. It supports the encrypted and fsverity files, which are > essential for Android environment. > > How to test: > - dd if=/dev/zero of=/mnt/test/test bs=1G count=4 > - f2fs_io setflags immutable /mnt/test/test > - echo 3 > /proc/sys/vm/drop_caches > : to reload inode with large folio > - f2fs_io read 32 0 1024 mmap 0 0 /mnt/test/test > > Signed-off-by: Jaegeuk Kim Reviewed-by: Chao Yu Thanks,