vfs_setlease (9) - Linux Manuals

vfs_setlease: sets a lease on an open file

Command to display vfs_setlease manual in Linux: $ man 9 vfs_setlease

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 (may be NULL if lm_setup doesn't require it)

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).

The "priv" pointer is passed directly to the lm_setup function as-is. It may be NULL if the lm_setup operation doesn't require it.