Revert "drivers: staging: Fix Zcache"

This reverts commit 2a1319d3d46c38e94b0b30bc2fd3a4097ce9bb7a.
Revert "The names to the functions that acquire and release a console lock have changed,"

This reverts commit 9bd177600a395e02ab76002a11c8d718ad3c70e2.
Squashed revert of sched updates
Revert "sched: change WARN_ON_ONCE to WARN_ON in try_to_wake_up_local()"

This reverts commit dc5e3417d48554d978fed8c42dedbb8951b0823e.

Revert "sched: Convert BUG_ON()s in try_to_wake_up_local() to WARN_ON_ONCE()s"

This reverts commit fe01958ae18ec6b68d5400cb8f799ef30326a195.

Revert "sched: Make sure to not re-read variables after validation"

This reverts commit 87f05c5080d1af2b099e398b231541d57d80e310.

Revert "sched: re-calculate a cpu's next_balance point upon sched domain changes"

This reverts commit 09897ebb81abf0f37fa4af3a554862e62a2a029f.

Revert "sched: remove migration notification from RT class"

This reverts commit ac2160c25750ca1b50a4c58f3e62b29254ea118e.

Revert "sched: provide per cpu-cgroup option to notify on migrations"

This reverts commit 8330f8a92411868d48288dfd17b8db00cd314ab8.

Revert "sched: fix reference to wrong cfs_rq"

This reverts commit 4a3e3313f2e33f03eca2fa2100be5dc424dcc4ac.

Revert "sched: Mark schedule_io_timeout() with EXPORT_SYMBOL"

This reverts commit 55aae7d86f06f0f7f4080aff850ca113b507c556.

Revert "sched: Fix SCHED_HRTICK bug leading to late preemption of tasks"

This reverts commit 4db31c714525e1a6fc87021e7d46f44863fb1bb7.

Revert "sched: Reset rq->next_interval before going idle"

This reverts commit d6607dcf8a863262bfc9aff3ffdc489c99df6e1d.

Revert "sched: fix rq->lock recursion"

This reverts commit 37a6ff0763f998cc99d8546491f140fa76c39c50.