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
  ...

4 files changed, 15 insertions, 12 deletions

diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index c9a3c1fe7297..dc46490adca0 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -7,12 +7,15 @@ config TILE
         select HAVE_DMA_API_DEBUG
         select HAVE_KVM if !TILEGX
         select GENERIC_FIND_FIRST_BIT
+        select SYSCTL_EXCEPTION_TRACE
         select USE_GENERIC_SMP_HELPERS
         select CC_OPTIMIZE_FOR_SIZE
+        select HAVE_DEBUG_KMEMLEAK
         select HAVE_GENERIC_HARDIRQS
         select GENERIC_IRQ_PROBE
         select GENERIC_PENDING_IRQ if SMP
         select GENERIC_IRQ_SHOW
+        select HAVE_DEBUG_BUGVERBOSE
         select HAVE_SYSCALL_WRAPPERS if TILEGX
         select SYS_HYPERVISOR
         select ARCH_HAVE_NMI_SAFE_CMPXCHG
diff --git a/arch/tile/include/asm/hugetlb.h b/arch/tile/include/asm/hugetlb.h
index b2042380a5aa..0f885af2b621 100644
--- a/arch/tile/include/asm/hugetlb.h
+++ b/arch/tile/include/asm/hugetlb.h
@@ -106,6 +106,10 @@ static inline void arch_release_hugepage(struct page *page)
 {
 }
 
+static inline void arch_clear_hugepage_flags(struct page *page)
+{
+}
+
 #ifdef CONFIG_HUGETLB_SUPER_PAGES
 static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
                                        struct page *page, int writable)
diff --git a/arch/tile/mm/elf.c b/arch/tile/mm/elf.c
index 758b6038c2b7..3cfa98bf9125 100644
--- a/arch/tile/mm/elf.c
+++ b/arch/tile/mm/elf.c
@@ -36,19 +36,14 @@ static void sim_notify_exec(const char *binary_name)
         } while (c);
 }
 
-static int notify_exec(void)
+static int notify_exec(struct mm_struct *mm)
 {
         int retval = 0;  /* failure */
-        struct vm_area_struct *vma = current->mm->mmap;
-        while (vma) {
-                if ((vma->vm_flags & VM_EXECUTABLE) && vma->vm_file)
-                        break;
-                vma = vma->vm_next;
-        }
-        if (vma) {
+
+        if (mm->exe_file) {
                 char *buf = (char *) __get_free_page(GFP_KERNEL);
                 if (buf) {
-                        char *path = d_path(&vma->vm_file->f_path,
+                        char *path = d_path(&mm->exe_file->f_path,
                                             buf, PAGE_SIZE);
                         if (!IS_ERR(path)) {
                                 sim_notify_exec(path);
@@ -106,16 +101,16 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
         unsigned long vdso_base;
         int retval = 0;
 
+        down_write(&mm->mmap_sem);
+
         /*
          * Notify the simulator that an exec just occurred.
          * If we can't find the filename of the mapping, just use
          * whatever was passed as the linux_binprm filename.
          */
-        if (!notify_exec())
+        if (!notify_exec(mm))
                 sim_notify_exec(bprm->filename);
 
-        down_write(&mm->mmap_sem);
-
         /*
          * MAYWRITE to allow gdb to COW and set breakpoints
          */
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
index 84ce7abbf5af..fe811fa5f1b9 100644
--- a/arch/tile/mm/fault.c
+++ b/arch/tile/mm/fault.c
@@ -454,6 +454,7 @@ good_area:
                         tsk->min_flt++;
                 if (fault & VM_FAULT_RETRY) {
                         flags &= ~FAULT_FLAG_ALLOW_RETRY;
+                        flags |= FAULT_FLAG_TRIED;
 
                          /*
                           * No need to up_read(&mm->mmap_sem) as we would