Revert "writeback: fix race that cause writeback hung"

This reverts commit 2fbd04ac174794c131eb6c4679df12ab56c28a31.
Revert "block: do not notify urgent request, when flush with data in flight"

This reverts commit 72859c360d425f3cd38bad71f4e4044bc55b48d9.
Revert "block: account iowait time when waiting for completion of IO request"

This reverts commit cb974269e033ad31725abc061fd9d06fcb436720.
Revert "writeback: fix writeback cache thrashing"

This reverts commit ccbdb95d7fba1879e5548def48bb3814cb5c2c16.
Revert "mm: slub: Default slub_max_order to 0"

This reverts commit d5f26525c33a33535b9b924a2e83e4aff07bb49e.
Revert "block: disable add_random for more performance on SSD's"

This reverts commit 0942412bf2abbb0623265e21b2bd6afba129e3e0.
Revert "audit: kiss goodbye you stupid piece of crap logging messages."

This reverts commit 8d379327ea673733aa83ef35132c3c5c0eb459bc.
Revert "Revert "ARM: dts: msm: change emmc clock line drive strength""

This reverts commit b139105af6cb706c2d50b3e004ea2ae2bf8add23.
Revert "OC/UV interface"

This reverts commit 2b4b27cc6bafb37bb423500ea296875c2a797722.

Conflicts:
	arch/arm/configs/cm_m8_defconfig
Revert "dts: introduce 268MHz clock"

This reverts commit 6010c7ac3003acfd34a8241540d59957e9476412.

Conflicts:
	arch/arm/boot/dts/msm8974pro.dtsi