Merge branch 'for-2.6.28' of git://git.kernel.dk/linux-2.6-block

	int i, count = dma_map_sg(dev, sglist, nents, direction);

	struct scatterlist *sg;

	for (i = 0, sg = sglist; i < count; i++, sg++) {

	for_each_sg(sglist, sg, count, i) {

		hw_address[i] = sg_dma_address(sg);

		hw_len[i] = sg_dma_len(sg);

	}

!Eblock/blk-barrier.c

!Eblock/blk-tag.c

!Iblock/blk-tag.c

!Eblock/blk-integrity.c

!Iblock/blktrace.c

!Iblock/genhd.c

!Eblock/genhd.c

  </chapter>

  <chapter id="chrdev">

Similar to read_expire mentioned above, but for writes.

fifo_batch

fifo_batch	(number of requests)

----------

When a read request expires its deadline, we must move some requests from

the sorted io scheduler list to the block device dispatch queue. fifo_batch

controls how many requests we move.

Requests are grouped into ``batches'' of a particular data direction (read or

write) which are serviced in increasing sector order.  To limit extra seeking,

deadline expiries are only checked between batches.  fifo_batch controls the

maximum number of requests per batch.

This parameter tunes the balance between per-request latency and aggregate

throughput.  When low latency is the primary concern, smaller is better (where

a value of 1 yields first-come first-served behaviour).  Increasing fifo_batch

generally improves throughput, at the cost of latency variation.

writes_starved	(number of dispatches)

To play an audio CD, you should first unmount and remove any data

CDROM.  Any of the CDROM player programs should then work (workman,

workbone, cdplayer, etc.).  Lacking anything else, you could use the

cdtester program in Documentation/cdrom/sbpcd.

workbone, cdplayer, etc.).

On a few drives, you can read digital audio directly using a program

such as cdda2wav.  The only types of drive which I've heard support

obj-$(CONFIG_BLOCK) := elevator.o blk-core.o blk-tag.o blk-sysfs.o \

			blk-barrier.o blk-settings.o blk-ioc.o blk-map.o \

			blk-exec.o blk-merge.o ioctl.o genhd.o scsi_ioctl.o \

			cmd-filter.o

			blk-exec.o blk-merge.o blk-softirq.o blk-timeout.o \

			ioctl.o genhd.o scsi_ioctl.o cmd-filter.o

obj-$(CONFIG_BLK_DEV_BSG)	+= bsg.o

obj-$(CONFIG_IOSCHED_NOOP)	+= noop-iosched.o