Name

vfs_setlease — sets a lease on an open file

Synopsis

int vfs_setlease (struct file * filp,
 long arg,
 struct file_lock ** lease,
 void ** priv);
 

Arguments

filp

file pointer

arg

type of lease to obtain

lease

file_lock to use when adding a lease

priv

private info for lm_setup when adding a lease

Description

Call this to establish a lease on the file. The lease argument is not used for F_UNLCK requests and may be NULL. For commands that set or alter an existing lease, the (*lease)->fl_lmops->lm_break operation must be set; if not, this function will return -ENOLCK (and generate a scary-looking stack trace).