Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block
* 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block:
cfq: set workload as expired if it doesn't have any slice left
Fix a CFQ crash in "for-2.6.33" branch of block tree
cfq: Remove wait_request flag when idle time is being deleted
cfq-iosched: commenting non-obvious initialization
cfq-iosched: Take care of corner cases of group losing share due to deletion
cfq-iosched: Get rid of cfqq wait_busy_done flag
cfq: Optimization for close cooperating queue searching
block,xd: Delay allocation of DMA buffers until device is known
drbd: Following the hmac change to SHASH (see linux commit 8bd1209cfff)
cfq-iosched: reduce write depth only if sync was delayed