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 C106025F994 for ; Mon, 15 Jun 2026 03:27:57 +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=1781494078; cv=none; b=R/qGVRoyCWCB9ysDgksNh5oF12o0aTG+OIzpcC8nLccRz9qvdJXV2XRPG0PEikCDSOujIzj9fBXZtAVSP8Et83Al1KkEVajgASBKtTbaBYjqK1jLHlg0/uHdFI0avdnUl526h/rQY82C5A6zz0V7c+RtS7eeyQjbiN5fkFXWlQg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781494078; c=relaxed/simple; bh=x85cFIkvTFYJA2wSh6yaBeNn2Inz3T/rqZ7tLmlnhIM=; h=Message-ID:Date:MIME-Version:Cc:Subject:To:References:From: In-Reply-To:Content-Type; b=fvDuKfe0tIDDgYBWeBj4QZ/Oii08e87cf2De2tXo+5pvPtTWmz72ztpgRQV+JUcfJm2PH+F4NohOrRkUMLveBxPv74ZwUAm9+YR33UlDZLT8jC1oWkRxFhgI3jMIdF2ob0Bchzcjd03zVeBFnHegxa3GBhRIh1Tv9tkHZ5iZfxQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=iCJdd1BB; 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="iCJdd1BB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 102101F000E9; Mon, 15 Jun 2026 03:27:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781494077; bh=CYpMGm4KPltzF02KV9EHN/2ezBlSWZ5vgvsKiinpFak=; h=Date:Cc:Subject:To:References:From:In-Reply-To; b=iCJdd1BBOYEfa9/OvEQizXQr5Q9FpcuARTxgitI29CRNXZHBDcZTBbieHbEex0zwT 92flQo34nWxi7nsEtJL6P6LBgOoPdCf5jOs2D9P+MrX+/Rqee8VLetBJez6R1opfsN CQE97UaKKti5vLd64m4PJv8l24Ahv8VZsSIDVpXvzSmiNyx4mAcP3kwN9mfaqSc101 2HKlXjZwIQb2UqHqJPfRi2gWSlSSG4O5daYnlWMQIAmdsYAUtQyoLAVNnJNUemKAZW JfzC+X4LLdIsTw8houA7vEWGQeXH0Bnq38h/dOly3jE4JRvYjMlT/GyIdHZ5qMzYja x6mU8Yp9sINtg== Message-ID: Date: Mon, 15 Jun 2026 11:27:53 +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-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, qiwenjie@xiaomi.com Subject: Re: [PATCH v2] f2fs: reject setattr size changes on large folio files To: Wenjie Qi , jaegeuk@kernel.org References: <20260610143735.3169935-1-qiwenjie@xiaomi.com> Content-Language: en-US From: Chao Yu In-Reply-To: <20260610143735.3169935-1-qiwenjie@xiaomi.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 6/10/26 22:37, Wenjie Qi wrote: > F2FS large folios are only enabled for immutable non-compressed files. > Writable open and writable mmap reject such mappings, but truncate(2) > through f2fs_setattr() misses the same guard. > > If FS_IMMUTABLE_FL is cleared while the inode is still cached, the mapping > can keep large-folio support and ATTR_SIZE can change i_size. Reject size > changes in that state. > Cc: stable@kernel.org > Fixes: 05e65c14ea59 ("f2fs: support large folio for immutable non-compressed case") > Signed-off-by: Wenjie Qi Reviewed-by: Chao Yu Thanks,