Provided by: kernel-doc-2.4.27_2.4.27-12_all bug

NAME
       lock_may_read -  checks that the region is free of locks


SYNOPSIS
       int  lock_may_read  (struct  inode  *inode, loff_t start, unsigned long
       len);


ARGUMENTS
       inode        the inode that is being read

       start        the first byte to read

       len          the number of bytes to read


DESCRIPTION
       Emulates Windows  locking  requirements.   Whole-file  mandatory  locks
       (share  modes)  can  prohibit  a  read  and  byte-range POSIX locks can
       prohibit a read if they overlap.

       N.B. this function is only ever called  from  knfsd  and  ownership  of
       locks is never checked.