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FCNTL_GETLEASE(9) The Linux VFS FCNTL_GETLEASE(9)
NAME
fcntl_getlease - Enquire what lease is currently active
SYNOPSIS
int fcntl_getlease(struct file * filp);
ARGUMENTS
filp
the file
DESCRIPTION
The value returned by this function will be one of (if no lease break
is pending):
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.
XXX
sfr & willy disagree over whether F_INPROGRESS should be returned to
userspace.
COPYRIGHT
Kernel Hackers Manual 2.6. November 2013 FCNTL_GETLEASE(9)
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