Re: [git pull] vfs.git part 1

On Fri, Jul 7, 2017 at 5:46 AM, Michael Ellerman [off-list ref] wrote:

Al Viro [off-list ref] writes:

quoted

  Switch flock copyin/copyout primitives to copy_{from,to}_user() (2017-06-26 23:52:44 -0400)

This commit seems to have broken networking on a bunch of my PPC
machines (64-bit kernel, 32-bit userspace).

Bah. I think that commit is entirely broken, due to having the
arguments to the "copy_flock_fields()" in the wrong order.

The copy_flock_fields() macro has the arguments in order <from, to>,
but all the users seem to do it the other way around.

I think it would have been more obvious if the put_compat_flock*()
source argument had been "const".

Patch coming.

I'm not seeing a patch, so I did my own. But it's _entirely_ untested.
Does the attached fix things for you?

                     Linus