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Tue, 23 Apr 2024 10:53:44 GMT Received: from smtpav01.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A934D58059; Tue, 23 Apr 2024 10:53:42 +0000 (GMT) Received: from smtpav01.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D7AD25804B; Tue, 23 Apr 2024 10:53:41 +0000 (GMT) Received: from [9.47.158.152] (unknown [9.47.158.152]) by smtpav01.wdc07v.mail.ibm.com (Postfix) with ESMTP; Tue, 23 Apr 2024 10:53:41 +0000 (GMT) Message-ID: <370f9aa6-ef55-469a-ad42-94bf535e0eb8@linux.ibm.com> Date: Tue, 23 Apr 2024 06:53:41 -0400 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH v2 0/2] ima: Fix detection of read/write violations on stacked filesystems Content-Language: en-US To: Amir Goldstein Cc: linux-integrity@vger.kernel.org, linux-unionfs@vger.kernel.org, linux-kernel@vger.kernel.org, zohar@linux.ibm.com, roberto.sassu@huawei.com, miklos@szeredi.hu, brauner@kernel.org References: <20240422150651.2908169-1-stefanb@linux.ibm.com> From: Stefan Berger In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: KgyvGzNTVDgZXbleLvvP1tXFu30p9Uqv X-Proofpoint-GUID: Mdd4vI1AK8TyMyLwNPe0WwQq3zIpXCVF Content-Transfer-Encoding: 8bit X-Proofpoint-UnRewURL: 0 URL was un-rewritten Precedence: bulk X-Mailing-List: linux-unionfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-04-23_09,2024-04-22_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 mlxscore=0 suspectscore=0 priorityscore=1501 phishscore=0 malwarescore=0 spamscore=0 mlxlogscore=665 adultscore=0 clxscore=1015 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2404010000 definitions=main-2404230029 On 4/23/24 02:02, Amir Goldstein wrote: > On Mon, Apr 22, 2024 at 6:07 PM Stefan Berger wrote: >> >> This series fixes the detection of read/write violations on stacked >> filesystems. To be able to access the relevant dentries necessary to >> detect files opened for writing on a stacked filesystem a new d_real_type >> D_REAL_FILEDATA is introduced that allows callers to access all relevant >> files involved in a stacked filesystem while traversing the layers. >> > > Stefan, > > Both Miklos and myself objected to this solution: > https://lore.kernel.org/linux-unionfs/CAJfpeguctirEYECoigcAsJwpGPCX2NyfMZ8H8GHGW-0UyKfjgg@mail.gmail.com/ Thanks, the RFC has achieved its objective now. Stefan