Merge branch 'akpm' (Andrew's patch-bomb)

Merge patches from Andrew Morton:
 "A few misc things and very nearly all of the MM tree.  A tremendous
  amount of stuff (again), including a significant rbtree library
  rework."

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (160 commits)
  sparc64: Support transparent huge pages.
  mm: thp: Use more portable PMD clearing sequenece in zap_huge_pmd().
  mm: Add and use update_mmu_cache_pmd() in transparent huge page code.
  sparc64: Document PGD and PMD layout.
  sparc64: Eliminate PTE table memory wastage.
  sparc64: Halve the size of PTE tables
  sparc64: Only support 4MB huge pages and 8KB base pages.
  memory-hotplug: suppress "Trying to free nonexistent resource <XXXXXXXXXXXXXXXX-YYYYYYYYYYYYYYYY>" warning
  mm: memcg: clean up mm_match_cgroup() signature
  mm: document PageHuge somewhat
  mm: use %pK for /proc/vmallocinfo
  mm, thp: fix mlock statistics
  mm, thp: fix mapped pages avoiding unevictable list on mlock
  memory-hotplug: update memory block's state and notify userspace
  memory-hotplug: preparation to notify memory block's state at memory hot remove
  mm: avoid section mismatch warning for memblock_type_name
  make GFP_NOTRACK definition unconditional
  cma: decrease cc.nr_migratepages after reclaiming pagelist
  CMA: migrate mlocked pages
  kpageflags: fix wrong KPF_THP on non-huge compound pages
  ...

1 files changed, 5 insertions, 6 deletions

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 9460120a5170..c5bc355d8243 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -110,7 +110,7 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
          * way when do_mmap_pgoff unwinds (may be important on powerpc
          * and ia64).
          */
-        vma->vm_flags |= VM_HUGETLB | VM_RESERVED;
+        vma->vm_flags |= VM_HUGETLB | VM_DONTEXPAND | VM_DONTDUMP;
         vma->vm_ops = &hugetlb_vm_ops;
 
         if (vma->vm_pgoff & (~huge_page_mask(h) >> PAGE_SHIFT))
@@ -397,17 +397,16 @@ static void hugetlbfs_evict_inode(struct inode *inode)
 }
 
 static inline void
-hugetlb_vmtruncate_list(struct prio_tree_root *root, pgoff_t pgoff)
+hugetlb_vmtruncate_list(struct rb_root *root, pgoff_t pgoff)
 {
         struct vm_area_struct *vma;
-        struct prio_tree_iter iter;
 
-        vma_prio_tree_foreach(vma, &iter, root, pgoff, ULONG_MAX) {
+        vma_interval_tree_foreach(vma, root, pgoff, ULONG_MAX) {
                 unsigned long v_offset;
 
                 /*
                  * Can the expression below overflow on 32-bit arches?
-                 * No, because the prio_tree returns us only those vmas
+                 * No, because the interval tree returns us only those vmas
                  * which overlap the truncated area starting at pgoff,
                  * and no vma on a 32-bit arch can span beyond the 4GB.
                  */
@@ -432,7 +431,7 @@ static int hugetlb_vmtruncate(struct inode *inode, loff_t offset)
 
         i_size_write(inode, offset);
         mutex_lock(&mapping->i_mmap_mutex);
-        if (!prio_tree_empty(&mapping->i_mmap))
+        if (!RB_EMPTY_ROOT(&mapping->i_mmap))
                 hugetlb_vmtruncate_list(&mapping->i_mmap, pgoff);
         mutex_unlock(&mapping->i_mmap_mutex);
         truncate_hugepages(inode, offset);