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SubjectRe: [PATCH v2 04/17] ceph: fix compat_ioctl for ceph_dir_operations
On Wed, Sep 12, 2018 at 6:10 PM David Laight <> wrote:
> From: Arnd Bergmann
> > Sent: 12 September 2018 16:01
> >
> > The ceph_ioctl function is used both for files and directories, but only
> > the files support doing that in 32-bit compat mode.
> >
> > For consistency, add the same compat handler to the dir operations
> > as well.
> Have you verified that all the relevant ioctl buffer structures are
> exactly the same for 32bit and 64bit applications?

I checked it now, it's fine: there are only ceph_ioctl_dataloc
and ceph_ioctl_layout structures passed here, both of which
are compatible.

I assumed that the ceph_dir_fops operations were correct
here (they are), but you are right that I should have double
checked for more bugs as I encountered one of them.


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