LOCKS_MANDATORY_AREA - Online Linux Manual PageSection : 9
Updated : June 2018
Source : Kernel Hackers Manual 2​.6​.
Note : The Linux VFS

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NAMElocks_mandatory_area − Check for a conflicting lock

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

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ARGUMENTSread_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

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DESCRIPTIONSearches 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​.

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