[Virtio-fs] ceph + freeipa ubuntu/fedora common small bug

[Vivek Goyal]

On Fri, Dec 11, 2020 at 11:05:22AM +0000, Dr. David Alan Gilbert wrote:
> * Harry G. Coin (hgcoin at gmail.com) wrote:
> > FYI.  Same thing we saw on Fedora installing freeipa, this on ubuntu
> > with ceph.  Identical bitmask report.
> > 
> > ...
> > 
> > Fixing /var/run/ceph ownership....done
> > 
> > Cannot set file attribute for '/var/log/journal', value=0x00800000,
> > mask=0x00800000, ignoring: Function not implemented
> > 
> > Cannot set file attribute for
> > '/var/log/journal/fd007229322043ad8778c214d19ed3ac', value=0x00800000,
> > mask=0x00800000, ignoring: Function not implemented
> 
> This looks like it comes out of systemd's  src/tmpfiles/tmpfiles.c:
> 
>         r = chattr_fd(procfs_fd, f, item->attribute_mask, NULL);
>         if (r < 0)
>                 log_full_errno(IN_SET(r, -ENOTTY, -EOPNOTSUPP) ? LOG_DEBUG : LOG_WARNING,
>                                r,
>                                "Cannot set file attribute for '%s', value=0x%08x, mask=0x%08x, ignoring: %m",
>                                path, item->attribute_value, item->attribute_mask);
> 
> and it's chattr_fd is in it's src/basic/chattr-util.c
> which is using FS_IOC_GET/SETFLAGS, which seems to be an older
> way of doing things.
> 
> Now, is that supposed to promote itself to a newer call or is it OK?

I see that we don't have any ->ioctl function registered in
passthrough_ll.c and that's why do_ioctl() (fuse_lowlevel.c) will
return -ENOSYS.

So we probably need to modify passthrough_ll.c to support some select
ioctls. Right now it looks like all fs ioctls will return -ENOSYS.

I tried "chattr +i foo.txt" and that return -ENOSYS as well.

Vivek