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[79.136.22.50]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b04279a59ffsm2131074366b.60.2025.09.09.06.19.08 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Sep 2025 06:19:08 -0700 (PDT) From: Tobias Waldekranz To: barebox@lists.infradead.org Date: Tue, 9 Sep 2025 15:18:33 +0200 Message-ID: <20250909131843.2260573-1-tobias@waldekranz.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Organization: Wires Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250909_061911_719238_ED5E6065 X-CRM114-Status: GOOD ( 10.21 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.9 required=4.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v2 0/7] dm: Initial work on a device mapper X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Start work on adding a device mapper that is compatible with the corresponding subsystem in Linux. v1: https://lore.kernel.org/barebox/20250828150637.2222474-1-tobias@waldekranz.com/ v1 -> v2: - Fix review comments from Ahmad (see individual commits) - Add (2/7): Add rasprintf(), to make scenarios where strings are built up in multiple steps more ergonomic to work with. - Add (5/7): As a result of making sure that the DM selftests execute in the CI suite, the qemu-malta build ran into a table size overflow. Tobias Waldekranz (7): string: add strtok/strtokv vsprintf: Add rasprintf(): the reallocing string printf family dm: Add initial device mapper infrastructure dm: linear: Add linear target MIPS: qemu-malta_defconfig: Use largest possible relocation table test: self: dm: Add test of linear target commands: dmsetup: Basic command set for dm device management arch/mips/configs/qemu-malta_defconfig | 1 + commands/Kconfig | 14 + commands/Makefile | 1 + commands/dmsetup.c | 144 +++++++++ drivers/block/Kconfig | 2 + drivers/block/Makefile | 1 + drivers/block/dm/Kconfig | 13 + drivers/block/dm/Makefile | 3 + drivers/block/dm/dm-core.c | 395 +++++++++++++++++++++++++ drivers/block/dm/dm-linear.c | 129 ++++++++ drivers/block/dm/dm-target.h | 39 +++ include/device-mapper.h | 16 + include/stdio.h | 10 + include/string.h | 1 + include/xfuncs.h | 4 + lib/string.c | 30 ++ lib/vsprintf.c | 35 +++ lib/xfuncs.c | 24 ++ test/self/Kconfig | 10 + test/self/Makefile | 1 + test/self/dm.c | 159 ++++++++++ 21 files changed, 1032 insertions(+) create mode 100644 commands/dmsetup.c create mode 100644 drivers/block/dm/Kconfig create mode 100644 drivers/block/dm/Makefile create mode 100644 drivers/block/dm/dm-core.c create mode 100644 drivers/block/dm/dm-linear.c create mode 100644 drivers/block/dm/dm-target.h create mode 100644 include/device-mapper.h create mode 100644 test/self/dm.c -- 2.43.0