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=1793237631; b=a7v6+Hea1di03KGTTKqFlMo11v01lFqu7BC+iskupLo4a1wG9/YMRxkiYbRJFwE0NxB8 uSEe0lRj8H4Bzc1AkHFsOyR8OARP6J50o9wVlWQwPRnobzVNK4TroNvVgk63OLZ0Qr7J3 HwRnUPJWgYUIFXvmHlannh1WuxFrAKNAmaqryuS0/bVXOkjRrfC4aRzlWPaa/t5loxcEr gMJnh6qTqSLH4cfGwEsIODMkF2hfoDJITSQCriy1nE3UjQGzJYvoMf99AWET1hcoHOKBr moognfe4tXi10UW1xR0DjugSDPqgdxpN13UzSluxDLCMso/at7AYMvFW3W1z9ojl0yw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793237631; 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=a7rbOhwPi4sLK14hPJS6IvXt3+PLmFcdLkquk6t1/r0=; b=AuaUZqibtOqD4Q+HZ7j06gJQi3LZ9uurptCKlnjHCeFBV+hhRqcqYJCnqBCMwy1WDW+S 5Do9HsHyznNadAylWXtfv2+pih96omLvF0j1AvbvQDRWIcPV4jMRiGPHIkhZofNf1kod+ ufxQpa1NeNIHdOiwHrgU1NF2tm4V74Hl2sjcLLS6PHsxCI8rZ6m1DmaxiDdbEHlIZUIJC lDEJ2Toc61Tm0lG9oDiwYdZBkVF4V5A12GlXasDGbqXgIW9zAr3Y/tDNK3vu7bdGIuzVS qxtUqnbih38EDNddoIOM0DcM6rvhzwRv3PkNIBczMOafXZihh9t7KaYO6pepNV7sn3Q== 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=Jka1QTng; 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 781D9606A31A for ; Thu, 29 Oct 2026 01:33:51 +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=Jka1QTng Received: by smtp.kernel.org (Postfix) with ESMTPSA id BF95C1F01825; Thu, 29 Oct 2026 01:33:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793237631; bh=a7rbOhwPi4sLK14hPJS6IvXt3+PLmFcdLkquk6t1/r0=; h=Date:Cc:Subject:To:References:From:In-Reply-To; b=Jka1QTngbX9BTXQMar///2PfqgFfgyWQWTagPZ56/t3RPENCMZWLBN08gGYcxfHXg egBSLU1cCFse9ncI2N4wF4oaGOX+HW5EdgR0GtHI4bRuxsaHudAAg2IZfL4oMPLB3r h88GMuloMwAJxYmBbraw5k4vVeGPoE9CQoZ+U7l3rBdbxjwSDh+JnXxgiGKpg9AxMU 9tJ6tBQfRKROdksUUCFzzH0AzclcAWRx89GZK0S0a5k2/sCpY6M3bEkLnom4vn/qIN ZOsEuBpP2qvpTZqLphi6cUQqqQsFxUozK3VSG16DMWQG+J/T1TtW1PSsBU3fh0UTbz b8eaSayVf22OQ== Message-ID: Date: Thu, 29 Oct 2026 09:33:47 +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 10/15] f2fs: support partial uptodate large folio read To: Nanzhe Zhao , linux-f2fs-devel@lists.sourceforge.net, Jaegeuk Kim References: <20261028154407.1601430-1-nzzhao.sigma@gmail.com> <20261028154407.1601430-11-nzzhao.sigma@gmail.com> Content-Language: en-US From: Chao Yu In-Reply-To: <20261028154407.1601430-11-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 > > Buffered write can have write bytes smaller than folio > size for cases when folio minimum order is not zero. > This can left partially uptodate folio in page cache. > So we skip uptodate subpage read in read_data_large_folio. > Also mark hole subpage uptodate in uptodate bitmap. > > Signed-off-by: Nanzhe Zhao Reviewed-by: Chao Yu Thanks,