nfsd: update obselete comment referencing the BKL

It's inode->i_lock that's now taken in setlease and break_lease, instead
of the big kernel lock.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2018-04-13 17:34:35 -04:00
commit 4a269efb6f