centos man page for __break_lease

__BREAK_LEASE(9)						   The Linux VFS						  __BREAK_LEASE(9)

NAME
       __break_lease - revoke all outstanding leases on file

SYNOPSIS
       int __break_lease(struct inode * inode, unsigned int mode, unsigned int type);

ARGUMENTS
       inode
	   the inode of the file to return

       mode
	   O_RDONLY: break only write leases; O_WRONLY or O_RDWR: break all leases

       type
	   FL_LEASE: break leases and delegations; FL_DELEG: break only delegations

DESCRIPTION
       break_lease (inlined for speed) has checked there already is at least some kind of lock (maybe a lease) on this file. Leases are broken on
       a call to open or truncate. This function can sleep unless you specified O_NONBLOCK to your open.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							  __BREAK_LEASE(9)