DooMLoRD: overall_stats: make dual/quad core stats configurable via menuconfig

commit c66202d119d4ae8f8a663a42e3941e273b4ec661
DooMLoRD: overall_stats: forward port to kernel 3.4+

commit d21d57168d969ec3b823d3bfbdfc8f827251069e
DooMLoRD: fs/dyn_sync_cntrl: dynamic sync control

commit 064b787a61b554bed5a1c56ba35d5405aa221f05
DooMLoRD: fs/dyn_sync_cntrl: Linux 3.4 Kernel compatibility fixup

commit 5cc5cffe844b1ac4cf3b2c7342adc713a81adc73
DooMLoRD: fs/dyn_fsync: check dyn fsync control's active prior to performing fsync ops

commit e763ea841ac6df1debffbd2b203c64ccbf323469