Ubuntu manuals

Provided by: linux-doc-2.6.15_2.6.15-23.39_all

NAME

       locks_mandatory_area - Check for a conflicting lock

SYNOPSIS

       int locks_mandatory_area  (int read_write, struct inode * inode,
                                   struct file * filp, loff_t offset,
                                   size_t count);

ARGUMENTS

       read_write
               FLOCK_VERIFY_WRITE  for exclusive access, FLOCK_VERIFY_READ for
              shared

       inode  the file to check

       filp   how the file was opened (if it was)

       offset start of area to check

       count  length of area to check

DESCRIPTION

       Searches the inode’s list of  locks  to  find  any  POSIX  locks  which
       conflict.   This   function   is   called   from   rw_verify_area   and
       locks_verify_truncate.