nfsd: fix crash on LOCKT on reexported NFSv3

Unlike other filesystems, NFSv3 tries to use fl_file in the GETLK case.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
J. Bruce Fields 2021-08-24 22:36:03 -04:00 • committed by Chuck Lever
commit 0bcc7ca40b