3.12-stable patches

3.12-stable patches

added patches:
	mm-compaction-respect-ignore_skip_hint-in-update_pageblock_skip.patch
	mm-fix-tlb-flush-race-between-migration-and-change_protection_range.patch
	mm-fix-use-after-free-in-sys_remap_file_pages.patch
	mm-hugetlb-check-for-pte-null-pointer-in-__page_check_address.patch
	mm-memory-failure.c-recheck-pagehuge-after-hugetlb-page-migrate-successfully.patch
	mm-memory-failure.c-transfer-page-count-from-head-page-to-tail-page-after-split-thp.patch
	mm-mempolicy-correct-putback-method-for-isolate-pages-if-failed.patch
	mm-munlock-fix-a-bug-where-thp-tail-page-is-encountered.patch
	mm-munlock-fix-deadlock-in-__munlock_pagevec.patch
	mm-numa-guarantee-that-tlb_flush_pending-updates-are-visible-before-page-table-updates.patch
	mm-page_alloc-revert-numa-aspect-of-fair-allocation-policy.patch