Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
Add UNPLUG traces to all appropriate places
block: fix requeue handling in blk_queue_invalidate_tags()
mmc: Fix sg helper copy-and-paste error
pktcdvd: fix BUG caused by sysfs module reference semantics change
ioprio: allow sys_ioprio_set() value of 0 to reset ioprio setting
cfq_idle_class_timer: add paranoid checks for jiffies overflow
cfq: fix IOPRIO_CLASS_IDLE delays
cfq: fix IOPRIO_CLASS_IDLE accounting