Hi, Now that FAN_FS_ERROR is close to being merged, I'm sending out a new version of the LTP tests. This version only applies the previous feedback and updates the interface to correspond to the changes requested on the kernel patches. One important detail is that, for the tests to succeed, there is a dependency on an ext4 fix I sent today: https://lore.kernel.org/linux-ext4/20211026173302.84000-1-krisman@xxxxxxxxxxxxx/T/#u --- Original cover letter: FAN_FS_ERROR is a new (still unmerged) fanotify event to monitor fileystem errors. This patchset introduces a new LTP test for this feature. Testing file system errors is slightly tricky, in particular because they are mostly file system dependent. Since there are only patches for ext4, I choose to make the test around it, since there wouldn't be much to do with other file systems. The second challenge is how we cause the file system errors, since there is no error injection for ext4 in Linux. In this series, this is done by corrupting specific data in the test device with the help of debugfs. The FAN_FS_ERROR feature is flying around linux-ext4 and fsdevel, and the latest version is available on the branch below: https://gitlab.collabora.com/krisman/linux -b fanotify-notifications-v9 A proper manpage description is also available on the respective mailing list, or in the branch below: https://gitlab.collabora.com/krisman/man-pages.git -b fan-fs-error Please, let me know your thoughts. Gabriel Krisman Bertazi (10): syscalls: fanotify: Add macro to require specific mark types syscalls: fanotify: Add macro to require specific events syscalls/fanotify20: Introduce helpers for FAN_FS_ERROR test syscalls/fanotify20: Validate the generic error info syscalls/fanotify20: Validate incoming FID in FAN_FS_ERROR syscalls/fanotify20: Support submission of debugfs commands syscalls/fanotify20: Create a corrupted file syscalls/fanotify20: Test event after filesystem abort syscalls/fanotify20: Test file event with broken inode syscalls/fanotify20: Test capture of multiple errors testcases/kernel/syscalls/fanotify/.gitignore | 1 + testcases/kernel/syscalls/fanotify/fanotify.h | 72 +++- .../kernel/syscalls/fanotify/fanotify03.c | 4 +- .../kernel/syscalls/fanotify/fanotify10.c | 3 +- .../kernel/syscalls/fanotify/fanotify12.c | 3 +- .../kernel/syscalls/fanotify/fanotify20.c | 313 ++++++++++++++++++ 6 files changed, 389 insertions(+), 7 deletions(-) create mode 100644 testcases/kernel/syscalls/fanotify/fanotify20.c -- 2.33.0
