[LTP] [PATCH v3 0/9] Test the new fanotify FAN_FS_ERROR event

[Petr Vorel]

> On Fri, Nov 5, 2021 at 12:10 PM Petr Vorel <pvorel@suse.cz> wrote:

> > Hi Gabriel, all,

> > > Hi,

> > > Now that FAN_FS_ERROR is close to being merged, I'm sending a new
> > > version of the LTP tests.  This is the v3 of this patchset, and it
> > > applies the feedback of the previous version, in particular, it solves
> > > the issue Amir pointed out, that ltp won't gracefully handle a test with
> > > tcnt==0.  To solve that, I merged the patch that set up the environment
> > > with a simple test, that only triggers a fs abort and watches the
> > > event.

> > > I'm also renaming the testcase from fanotify20 to fanotify21, to leave
> > > room for the pidfs test that is also in the baking by Matthew Bobrowski.

> > > One important detail is that, for the tests to succeed, there is a
> > > dependency on an ext4 fix I sent a few days ago:

> > > https://lore.kernel.org/linux-ext4/20211026173302.84000-1-krisman@collabora.com/T/#u
> > It has been merged into Theodore Ts'o ext4 tree into dev branch as c1e2e0350ce3
> > ("ext4: Fix error code saved on super block during file system abort")

> > We should probably add it as .tags (see fanotify06.c).

> No point in doing that.
> There will be no kernel release which meets the test requirements
> and has this bug.
Yes, that's correct for stable kernels, enterprise kernels can backport
FAN_FS_ERROR feature, while miss this fix (it does not mention Fixes).

Kind regards,
Petr


> Thanks,
> Amir.