Merge remote-tracking branch 'sm8250/lineage-20' into lineage-20

* sm8250/lineage-20:
  UPSTREAM: ext4: avoid a potential slab-out-of-bounds in ext4_group_desc_csum
  UPSTREAM: ext4: fix invalid free tracking in ext4_xattr_move_to_block()
  ANDROID: incremental fs: Evict inodes before freeing mount data
  Revert "Revert "mm/rmap: Fix anon_vma->degree ambiguity leading to double-reuse""

Change-Id: If58092781085b25fb448841fe455202e8426c05b