14 fixes, based on 3bd6e94bec122a951d462c239b47954cf5f36e33: Subject: zram: idle writeback fixes and cleanup Subject: fork, memcg: fix cached_stacks case Subject: slab: alien caches must not be initialized if the allocation of the alien cache failed Subject: mm/usercopy.c: no check page span for stack objects Subject: mm, memcg: fix reclaim deadlock with writeback Subject: kasan, arm64: use ARCH_SLAB_MINALIGN instead of manual aligning Subject: kasan: make tag based mode work with CONFIG_HARDENED_USERCOPY Subject: kasan: fix krealloc handling for tag-based mode Subject: tools/vm/page_owner: use page_owner_sort in the use example Subject: mm/memory.c: initialise mmu_notifier_range correctly Subject: mm: page_mapped: don't assume compound page is huge or THP Subject: hugetlbfs: revert "Use i_mmap_rwsem to fix page fault/truncate race" Subject: hugetlbfs: revert "use i_mmap_rwsem for more pmd sharing synchronization" Subject: mm, page_alloc: do not wake kswapd with zone lock held