LOCKS_MANDATORY_AR(9)

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.