linux 3.7 support for dev_alloc_skb semantics? change
update __alloc_pages_nodemask () to support non-zero order
add system_wa support (need to be cleaned up later)
temporary fix of sim
adapt newer sysctl structures for arch/sim
initialize task_struct to avoid crash in an access to uninizialized value
add .NOTPARALLEL to avoid pararell jobs to generate the file
workqueue rework: support multiple workqueue_struct
update make testbuild to update bake related codes
adapt workqueue api for 3.5