Merge branch 'akpm' (patches from Andrew)

Merge misc fixes from Andrew Morton:
 "15 fixes"

[ This does not merge the "fortify: use WARN instead of BUG for now"
  patch, which needs a bit of extra work to build cleanly with all
  configurations. Arnd is on it.   - Linus ]

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  ocfs2: don't clear SGID when inheriting ACLs
  mm: allow page_cache_get_speculative in interrupt context
  userfaultfd: non-cooperative: flush event_wqh at release time
  ipc: add missing container_of()s for randstruct
  cpuset: fix a deadlock due to incomplete patching of cpusets_enabled()
  userfaultfd_zeropage: return -ENOSPC in case mm has gone
  mm: take memory hotplug lock within numa_zonelist_order_handler()
  mm/page_io.c: fix oops during block io poll in swapin path
  zram: do not free pool->size_class
  kthread: fix documentation build warning
  kasan: avoid -Wmaybe-uninitialized warning
  userfaultfd: non-cooperative: notify about unmap of destination during mremap
  mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries
  pid: kill pidhash_size in pidhash_init()
  mm/hugetlb.c: __get_user_pages ignores certain follow_hugetlb_page errors

1 files changed, 1 insertions, 0 deletions

diff --git a/mm/mprotect.c b/mm/mprotect.c
index 1a8c9ca83e48..4180ad8cc9c5 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -64,6 +64,7 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 	    atomic_read(&vma->vm_mm->mm_users) == 1)
 		target_node = numa_node_id();
 
+	flush_tlb_batched_pending(vma->vm_mm);
 	arch_enter_lazy_mmu_mode();
 	do {
 		oldpte = *pte;