1LOCKS_MANDATORY_AREA(9)          The Linux VFS         LOCKS_MANDATORY_AREA(9)
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NAME

6       locks_mandatory_area - Check for a conflicting lock
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SYNOPSIS

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

14       read_write
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16           FLOCK_VERIFY_WRITE for exclusive access, FLOCK_VERIFY_READ for
17           shared
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19       inode
20           the file to check
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22       filp
23           how the file was opened (if it was)
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25       offset
26           start of area to check
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28       count
29           length of area to check
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DESCRIPTION

32       Searches the inode´s list of locks to find any POSIX locks which
33       conflict. This function is called from rw_verify_area and
34       locks_verify_truncate.
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37Kernel Hackers Manual 2.6.         June 2019           LOCKS_MANDATORY_AREA(9)
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