locks_mandatory_area

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 locks_verify_area and locks_verify_truncate.