Re: [PATCH v2 05/17] locks: generic_delete_lease doesn't need a file_lock at all

On Thu, Sep 04, 2014 at 08:38:31AM -0400, Jeff Layton wrote:

Ensure that it's OK to pass in a NULL file_lock double pointer on
a F_UNLCK request and convert the vfs_setlease F_UNLCK callers to
do just that.

Finally, turn the BUG_ON in generic_setlease into a WARN_ON_ONCE
with an error return. That's a problem we can handle without
crashing the box if it occurs.

Can we just make generic_delete_lease (maye renamed to vfs_delete_lease)
the interface for deleting leases instead of going through a useless
multiplex and file operation?