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Message-Id: <cover.1645549521.git.ojaswin@linux.ibm.com> Date: Tue, 22 Feb 2022 23:20:51 +0530 From: Ojaswin Mujoo <ojaswin@...ux.ibm.com> To: fstests@...r.kernel.org, linux-ext4@...r.kernel.org Cc: riteshh@...ux.ibm.com Subject: [PATCH v2 0/2] tests/ext4: Ensure resizes with sparse_super2 are handled correctly As detailed in the patch [1], kernel currently does not support resizes with sparse_super2 enabled. Before the above patch, if we used the EXT4_IOC_RESIZE_FS ioctl directly, wiht sparse_super2 enabled, the kernel used to still try the resize and ultimatley leave the fs in an inconsistent state. This also led to corruption and kernel BUGs. This patchset adds a test for ext4 to ensure that the kernel handles resizes with sparse_super2 correctly, and returns -EOPNOTSUPP. Summary: Patch 1: Fix the src/ext4_resize.c script to return accurate error codes. Patch 2: Add the ext4 test for checking resize functionality Changes since v1 [2] * In patch 2, don't iterate if the expected errno is returned * Code cleanup and additional comments for clarity (also see extra note in patch 2) * No changes in patch 1 [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b1489186cc8391e0c1e342f9fbc3eedf6b944c61 [2] https://lore.kernel.org/fstests/cover.1644217569.git.ojaswin@linux.ibm.com/ Ojaswin Mujoo (2): src/ext4_resize.c: Refactor code and ensure accurate errno is returned ext4: Test to ensure resize with sparse_super2 is handled correctly src/ext4_resize.c | 46 +++++++++++++------ tests/ext4/056 | 108 +++++++++++++++++++++++++++++++++++++++++++++ tests/ext4/056.out | 2 + 3 files changed, 142 insertions(+), 14 deletions(-) create mode 100755 tests/ext4/056 create mode 100644 tests/ext4/056.out -- 2.27.0
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