blk_get_backing_dev_info(9) [suse man page]

BLK_GET_BACKING_DEV_(9) 					   Block Devices					   BLK_GET_BACKING_DEV_(9)

NAME

       blk_get_backing_dev_info - get the address of a queue's backing_dev_info

SYNOPSIS

       struct backing_dev_info * blk_get_backing_dev_info(struct block_device * bdev);

ARGUMENTS

       bdev
	   device

DESCRIPTION

       Locates the passed device's request queue and returns the address of its backing_dev_info

       Will return NULL if the request queue cannot be located.

COPYRIGHT

Kernel Hackers Manual 2.6.					     July 2010						   BLK_GET_BACKING_DEV_(9)

insque(9r)																insque(9r)

NAME

       insque, remque - General: Add or remove an element from the queue

SYNOPSIS

       struct generic_qheader {
			       struct generic_qheader *q_forw;
			       struct generic_qheader *q_back;
			      };

       int insque(
	       struct generic_qheader *elem,
	       struct generic_qheader *pred ); int remque(
	       struct generic_qheader *elem );

ARGUMENTS

       Specifies the address of the queue header that contains the element to be manipulated.  Specifies the address of the queue header that con-
       tains the element to precede the one specified by elem in the queue.

DESCRIPTION

       The insque routine adds the element that the elem argument specifies to the queue. The routine inserts elem in the next position after pred
       in the queue.

       The remque routine removes the element that the elem argument specifies from the queue it is currently in.

       Queues  are  built  from  doubly  linked  lists. Each element is linked into the queue through a queue header. All queue headers are of the
       generic form struct generic_qheader. A given element may have multiple queue headers. This allows each element to be simultaneously  linked
       onto multiple queues.

       Any  driver routine that manipulates these queues must call an appropriate spl routine to ensure that the spl level is high enough to block
       out any interrupts for other kernel modules that may access these queues.

RETURN VALUES

       None

SEE ALSO

       Routines: spl(9r)

																	insque(9r)