From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 B770B3115B8 for ; Sat, 17 Oct 2026 07:12:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792221145; cv=none; b=L1ciUuxuUsgyISzj20lhHQzNz2V6CtF3S0i+Cd+wtCZTMj7ktyVZhboZid3V77/XlsDhw+es/ZLcjtSv+BKxOLMOvcJ495zgMvwki8wcj6lJ/Howdst5Gezjd9TVWUpWYyXaJ4eMlTfifC0A4pscGaVSPEAXL2D31BlcB+tt/ls= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792221145; c=relaxed/simple; bh=BZwSK7ZeySOOyvlWP0oplhGZMIZVWipoOzRgi2fP0c8=; h=Message-ID:Date:MIME-Version:Cc:Subject:To:References:From: In-Reply-To:Content-Type; b=SComYYUxwzHsR8/lmqIDWXgHvR0+Hl7tSu5N2GRS9yyTpe1loZVMysTIc/WH2prPJVXHXhuJG9CLp+GDM5B2fOqICtiMEcg2f+WtezbvuZhfPuMggXpbcTc0TFfTBIZ3U2jDfsqdpArEvCLZ4C6BRw7VYo1vnPFVGKGU0maa480= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=X01Rnn/U; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="X01Rnn/U" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8FAD21F000C4; Sat, 17 Oct 2026 07:12:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792221144; bh=pawdgz1PFW+s1/dBQACbZ1G5t/EZzaKaoBS1ynYJbZA=; h=Date:Cc:Subject:To:References:From:In-Reply-To; b=X01Rnn/UjdCmUIIvN1zKJ1nPfQV5THE6+AbDItJM3Wzr/GwsRuvK5y158kSRSb/31 gPBwaSw5VhObaZfQySP3Pi9L5uMLi3oosy1GUs0SMWHFr2WXrJTfZdoNuBLHREWzSP RFgJ4EtNNrgdV459DBFKtADe21cgAy5mywmcBJZq5Oh9+o/GWogS1cSlvpfVJ/xeE2 Snmh2B4wrM9RIPBNyc0XnGUc+SqWQTV9FHTIfD3bQVqS1cFbJUL5l3TgODn5mKR406 LAzYcQe759EFzgglfpo+LENEZK2y2efRxxX92eOr5KWxKXcxUYQJXDp9JHS3gHAIpT X8PiKVH+diuaw== Message-ID: Date: Sat, 17 Oct 2026 15:12:21 +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, LKML Subject: Re: [PATCH v4 RESEND] erofs: enable iomap for file-backed mounts on unencoded inodes To: Gao Xiang , linux-erofs@lists.ozlabs.org References: <20261017002758.52193-1-xiang@kernel.org> <20261017023352.67568-1-xiang@kernel.org> Content-Language: en-US From: Chao Yu In-Reply-To: <20261017023352.67568-1-xiang@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 10/17/26 10:33, Gao Xiang wrote: > Iomap supports non-bdev I/O through fs-provided callbacks since > commit b2f35ac4146d ("iomap: add caller-provided callbacks for read > and readahead"), making it suitable for file-backed mounts on unencoded > inodes. > > Enable iomap for this case to support sub-folio buffered I/Os on > file-backed mounts and simplify the codebase. > > Signed-off-by: Gao Xiang (Docker) Reviewed-by: Chao Yu Thanks,