- writeback: eliminate work item allocation in
bd_start_writeback() (bnc#1081213).
- writeback: only allow one inflight and pending full flush
(bnc#1081213).
- writeback: move nr_pages == 0 logic to one location
(bnc#1081213).
- writeback: make wb_start_writeback() static (bnc#1081213).
- writeback: pass in '0' for nr_pages writeback in laptop mode
(bnc#1081213).
- writeback: provide a wakeup_flusher_threads_bdi() (bnc#1081213).
- writeback: remove 'range_cyclic' argument for
wb_start_writeback() (bnc#1081213).
- writeback: switch wakeup_flusher_threads() to cyclic writeback
(bnc#1081213).
- fs: kill 'nr_pages' argument from wakeup_flusher_threads()
(bnc#1081213).
- buffer: eliminate the need to call free_more_memory() in
__getblk_slow() (bnc#971975 VM performance -- memory usage
during reclaim).
- buffer: grow_dev_page() should use __GFP_NOFAIL for all cases
(bnc#971975 VM performance -- memory usage during reclaim).
- buffer: have alloc_page_buffers() use __GFP_NOFAIL (bnc#971975
VM performance -- memory usage during reclaim).
- commit ff7bae7

- powerpc/mm/hash64: Zero PGD pages on allocation (FATE#322447,
bsc#1078248).
- powerpc/mm/hash64: Store the slot information at the right
offset for hugetlb (FATE#322447, bsc#1078248).
- powerpc/mm/hash64: Allocate larger PMD table if hugetlb config