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(unknown []) by gzsmtp2 (Coremail) with SMTP id PSkvCgDnr+wRymJqH7z4DA--.34972S2; Fri, 24 Jul 2026 10:12:35 +0800 (CST) From: Song Chen To: arnd@arndb.de, kees@kernel.org, clm@fb.com, dsterba@suse.com, linux@armlinux.org.uk, catalin.marinas@arm.com, will@kernel.org, guoren@kernel.org, kernel@xen0n.name, maddy@linux.ibm.com, mpe@ellerman.id.au, npiggin@gmail.com, chleroy@kernel.org, pjw@kernel.org, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, gor@linux.ibm.com, borntraeger@linux.ibm.com, agordeev@linux.ibm.com, svens@linux.ibm.com, tglx@kernel.org, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, jpoimboe@kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, loongarch@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Song Chen Subject: [RFC PATCH v2 0/3] btrfs: add error injection support for checksum verification Date: Fri, 24 Jul 2026 10:12:26 +0800 Message-ID: <20260724021229.47302-1-chensong_2000@126.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: PSkvCgDnr+wRymJqH7z4DA--.34972S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7CF1xWr1UWw47tryUKF4Durg_yoW8GF1rpr y3u3s3uryrC34fCrnxAay8Zw1Fkrs5W34UXFnrG348W343Za4qq3WkKa4UJ3WS9rWUGw17 X3WUKr4UWr1UAFJanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07UonmiUUUUU= X-Originating-IP: [221.238.56.48] X-CM-SenderInfo: xfkh02prqjsjqqqqqiyswou0bp/xtbBsxPpaWpiyhNNnAAA3g X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260723_191426_802524_1288D229 X-CRM114-Status: UNSURE ( 8.44 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This patchset adds fault injection support for btrfs_data_csum_ok, enabling controlled simulation of checksum mismatches to test btrfs silent data corruption detection and reporting paths. The first patch extends the error injection framework with a new type, EI_ETYPE_FALSE, which allows bool-returning functions to be overridden with a false return value directly. The second patch marks btrfs_data_csum_ok with ALLOW_ERROR_INJECTION using this new type. The third patch adds a parent field to fei_attr to allow fault injection on a function only when called from a specific parent function. Song Chen (3): error-injection: Introduce EI_ETYPE_FALSE for fail_function btrfs: Allow error injection on btrfs_data_csum_ok error-injection: Introduce parent in fei_attr arch/arm/lib/error-inject.c | 6 ++ arch/arm64/lib/error-inject.c | 6 ++ arch/csky/lib/error-inject.c | 6 ++ arch/loongarch/lib/error-inject.c | 6 ++ arch/powerpc/lib/error-inject.c | 6 ++ arch/riscv/lib/error-inject.c | 6 ++ arch/s390/lib/error-inject.c | 6 ++ arch/x86/lib/error-inject.c | 6 ++ fs/btrfs/inode.c | 1 + include/asm-generic/error-injection.h | 6 ++ kernel/fail_function.c | 98 ++++++++++++++++++++++++++- 11 files changed, 152 insertions(+), 1 deletion(-) --- changelog: v1 --- v2: Add a parent field to struct fei_attr. -- 2.43.0