4.9-stable patches

4.9-stable patches

added patches:
	btrfs-disable-xattr-operations-on-subvolume-directories.patch
	btrfs-remove-get-set-_acl-from-btrfs_dir_ro_inode_operations.patch
	btrfs-remove-old-tree_root-case-in-btrfs_read_locked_inode.patch
	isdn-eicon-silence-misleading-array-bounds-warning.patch
	mm-huge_memory.c-respect-foll_force-foll_cow-for-thp.patch
	mm-mempolicy.c-do-not-put-mempolicy-before-using-its-nodemask.patch
	mm-page_alloc-fix-check-for-null-preferred_zone.patch
	mm-page_alloc-fix-fast-path-race-with-cpuset-update-or-removal.patch
	mm-page_alloc-fix-premature-oom-when-racing-with-cpuset-mems-update.patch
	mm-page_alloc-move-cpuset-seqcount-checking-to-slowpath.patch
	sysctl-fix-proc_doulongvec_ms_jiffies_minmax.patch
	userns-make-ucounts-lock-irq-safe.patch
	vring-force-use-of-dma-api-for-arm-based-systems-with-legacy-devices.patch
	xfs-prevent-quotacheck-from-overloading-inode-lru.patch