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[199.106.103.254]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2d561bde70csm5172631eec.15.2026.04.10.06.40.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Apr 2026 06:40:36 -0700 (PDT) From: Linlin Zhang To: linux-block@vger.kernel.org, ebiggers@kernel.org, mpatocka@redhat.com, gmazyland@gmail.com Cc: linux-kernel@vger.kernel.org, adrianvovk@gmail.com, dm-devel@lists.linux.dev, quic_mdalam@quicinc.com, israelr@nvidia.com, hch@infradead.org, axboe@kernel.dk Subject: [PATCH v2 0/3] dm-inlinecrypt: add target for inline block device encryption Date: Fri, 10 Apr 2026 06:40:28 -0700 Message-Id: <20260410134031.2880675-1-linlin.zhang@oss.qualcomm.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDEwMDEyOCBTYWx0ZWRfX8hVjdSeMSyc4 HzNm6ByS3Z8RKPUidMcBwrlJOhHOne7vZcUKL+6aPuBxohMUXgKOA+uub2NiAqa86O/AitHz6SE 9CbZKHCmlQ1CuXt66dvZ6J1khqPN4MjkiClfwUy1Bt6ORQc15ceg55iCj/ocgcBhUf4SRPFHBUF QE4KOsVIa3reA+k40JwlvwZex7BC/U4W1RsArpuHVGBD0aS6je0n8sD9OC+KGwrAYf77hUuE5Db LzAIxBES8fl25D5vFVKrOg93+pHlwTxTewomF8/cnCb/SYFfSXEP+JwOzBkXCDvNddTNRUf3KbP t/qtufOYrN8Cu3GadTagTQehCGOctwXzCIyp8GpeTU/SZyz9q+TAfNv7OPSOppApO2Sjs5othYA 84CSgIOZ3pF+OBsQt+zaBAMIEpBFb5/pyjZ6bSdJ79eXkcYrL2MTc5OyZUglytweJPZpe7hFFqB PhgrRW1laPRYyhqOycg== X-Proofpoint-GUID: 0_ajEhYro-7a7F2cCfGizm4hktrZ2Uev X-Authority-Analysis: v=2.4 cv=d6fFDxjE c=1 sm=1 tr=0 ts=69d8fdd6 cx=c_pps a=PfFC4Oe2JQzmKTvty2cRDw==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=VwQbUJbxAAAA:8 a=COk6AnOGAAAA:8 a=EUspDBNiAAAA:8 a=smb5OZ6KEkrD95H7haoA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=6Ab_bkdmUrQuMsNx7PHu:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-ORIG-GUID: 0_ajEhYro-7a7F2cCfGizm4hktrZ2Uev X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-10_04,2026-04-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 phishscore=0 lowpriorityscore=0 malwarescore=0 clxscore=1015 impostorscore=0 adultscore=0 bulkscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604010000 definitions=main-2604100128 This patch series is based on Eric’s work posted at: https://lore.kernel.org/all/ecbb7ea8-11f6-30c1-ad77-bd984c52ca33@quicinc.com/ Eric’s patches introduce a new dm target, dm-inlinecrypt, to support inline block-device encryption. The implementation builds on the work previously done in Android’s dm-default-key, but intentionally drops passthrough support, as that functionality does not appear likely to be accepted upstream in the near future. With this limitation, dm-inlinecrypt is positioned as a practical replacement for dm-crypt, rather than a general passthrough mechanism. On top of Eric’s series, keyring key support is added in dm-inlinecrypt. Thus, both keyring key and hex key are feasible for dm-inlinecrypt. In addition, dm-inlinecrypt.rst is added as the user-guide of dm-inlinecrypt. V1: https://lore.kernel.org/all/20260304121729.1532469-1-linlin.zhang@oss.qualcomm.com/ Eric Biggers (2): block: export blk-crypto symbols required by dm-inlinecrypt dm-inlinecrypt: add target for inline block device encryption Linlin Zhang (1): dm: add documentation for dm-inlinecrypt target .../device-mapper/dm-inlinecrypt.rst | 122 ++++ block/blk-crypto.c | 3 + drivers/md/Kconfig | 10 + drivers/md/Makefile | 1 + drivers/md/dm-inlinecrypt.c | 559 ++++++++++++++++++ 5 files changed, 695 insertions(+) create mode 100644 Documentation/admin-guide/device-mapper/dm-inlinecrypt.rst create mode 100644 drivers/md/dm-inlinecrypt.c -- 2.34.1