FCNTL_SETLEASE(9) The Linux VFS FCNTL_SETLEASE(9)
NAME fcntl_setlease - sets a lease on an open file
SYNOPSIS int fcntl_setlease(unsigned int fd, struct file * filp, long arg);
ARGUMENTS fd open file descriptor
filp file pointer
arg type of lease to obtain
DESCRIPTION Call this fcntl to establish a lease on the file. Note that you also need to call F_SETSIG to receive a signal when the lease is broken.
COPYRIGHT Kernel Hackers Manual 2.6. April 2016 FCNTL_SETLEASE(9)