Provided by: linux-doc-2.6.15_2.6.15-23.39_all
fcntl_getlease - Enquire what lease is currently active
int fcntl_getlease (struct file * filp);
filp the file
The value returned by this function will be one of (if no lease break
F_RDLCK to indicate a shared lease is held.
F_WRLCK to indicate an exclusive lease is held.
F_UNLCK to indicate no lease is held.
(if a lease break is pending):
F_RDLCK to indicate an exclusive lease needs to be changed to a shared
lease (or removed).
F_UNLCK to indicate the lease needs to be removed.
sfr & willy disagree over whether F_INPROGRESS should be returned to