suse man page for posix_lock_file_wait

POSIX_LOCK_FILE_WAIT(9) 					   The Linux VFS					   POSIX_LOCK_FILE_WAIT(9)

NAME
       posix_lock_file_wait - Apply a POSIX-style lock to a file

SYNOPSIS
       int posix_lock_file_wait(struct file * filp, struct file_lock * fl);

ARGUMENTS
       filp
	   The file to apply the lock to

       fl
	   The lock to be applied

DESCRIPTION
       Add a POSIX style lock to a file. We merge adjacent & overlapping locks whenever possible. POSIX locks are sorted by owner task, then by
       starting address

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						   POSIX_LOCK_FILE_WAIT(9)