lock_may_write man page on Scientific

lock_may_write man page on Scientific

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LOCK_MAY_WRITE(9)		 The Linux VFS		     LOCK_MAY_WRITE(9)

NAME
       lock_may_write - checks that the region is free of locks

SYNOPSIS
       int lock_may_write(struct inode * inode, loff_t start,
			  unsigned long len);

ARGUMENTS
       inode
	   the inode that is being written

       start
	   the first byte to write

       len
	   the number of bytes to write

DESCRIPTION
       Emulates Windows locking requirements. Whole-file mandatory locks
       (share modes) can prohibit a write and byte-range POSIX locks can
       prohibit a write if they overlap.

       N.B. this function is only ever called from knfsd and ownership of
       locks is never checked.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013		     LOCK_MAY_WRITE(9)

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