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LOCKDEV(8)							    LOCKDEV(8)

NAME
       lockdev demonstrates functionality of liblockdev library.

SYNOPSIS
       /usr/sbin/lockdev [<operation>] <device>

DESCRIPTION
       The lockdev command can perform one of the following operations:

       -l - lock device with dev_lock() function

       -u - unlock device with dev_unlock() function

       no operation - test lock with dev_testlock() function

RETURN VALUES
	  Value	 dev_lock	  dev_unlock	   dev_testlock
	  0	 OK		  OK		   not locked
	  1	 locked other	  locked other	   locked
	  2	 EACCES
	  3	 EROFS
	  4	 EFAULT
	  5	 EINVAL
	  6	 ENAMETOOLONG
	  7	 ENOENT
	  8	 ENOTDIR
	  9	 ENOMEM
	 10	 ELOOP
	 11	 EIO
	255	 error		     error		 error

SEE ALSO
       lockdev(3).

				SEPTEMBER 2009			    LOCKDEV(8)

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