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 [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b1489186cc8391e0c1e342f9fbc3eedf6b944c61 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 | 102 +++++++++++++++++++++++++++++++++++++++++++++ tests/ext4/056.out | 2 + 3 files changed, 136 insertions(+), 14 deletions(-) create mode 100755 tests/ext4/056 create mode 100644 tests/ext4/056.out -- 2.27.0
