Merge branch 'akpm' (patches from Andrew)

Merge misc updates from Andrew Morton:

 - a few random little subsystems

 - almost all of the MM patches which are staged ahead of linux-next
   material. I'll trickle to post-linux-next work in as the dependents
   get merged up.

Subsystems affected by this patch series: kthread, kbuild, ide, ntfs,
ocfs2, arch, and mm (slab-generic, slab, slub, dax, debug, pagecache,
gup, swap, shmem, memcg, pagemap, mremap, hmm, vmalloc, documentation,
kasan, pagealloc, memory-failure, hugetlb, vmscan, z3fold, compaction,
oom-kill, migration, cma, page-poison, userfaultfd, zswap, zsmalloc,
uaccess, zram, and cleanups).

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (200 commits)
  mm: cleanup kstrto*() usage
  mm: fix fall-through warnings for Clang
  mm: slub: convert sysfs sprintf family to sysfs_emit/sysfs_emit_at
  mm: shmem: convert shmem_enabled_show to use sysfs_emit_at
  mm:backing-dev: use sysfs_emit in macro defining functions
  mm: huge_memory: convert remaining use of sprintf to sysfs_emit and neatening
  mm: use sysfs_emit for struct kobject * uses
  mm: fix kernel-doc markups
  zram: break the strict dependency from lzo
  zram: add stat to gather incompressible pages since zram set up
  zram: support page writeback
  mm/process_vm_access: remove redundant initialization of iov_r
  mm/zsmalloc.c: rework the list_add code in insert_zspage()
  mm/zswap: move to use crypto_acomp API for hardware acceleration
  mm/zswap: fix passing zero to 'PTR_ERR' warning
  mm/zswap: make struct kernel_param_ops definitions const
  userfaultfd/selftests: hint the test runner on required privilege
  userfaultfd/selftests: fix retval check for userfaultfd_open()
  userfaultfd/selftests: always dump something in modes
  userfaultfd: selftests: make __{s,u}64 format specifiers portable
  ...

1 files changed, 33 insertions, 10 deletions

diff --git a/tools/testing/selftests/vm/run_vmtests b/tools/testing/selftests/vm/run_vmtests
index a3f4f30f0a2e..e953f3cd9664 100755
--- a/tools/testing/selftests/vm/run_vmtests
+++ b/tools/testing/selftests/vm/run_vmtests
@@ -123,10 +123,10 @@ else
 	echo "[PASS]"
 fi
 
-echo "--------------------------------------------"
-echo "running 'gup_benchmark -U' (normal/slow gup)"
-echo "--------------------------------------------"
-./gup_benchmark -U
+echo "------------------------------------------------------"
+echo "running: gup_test -u # get_user_pages_fast() benchmark"
+echo "------------------------------------------------------"
+./gup_test -u
 if [ $? -ne 0 ]; then
 	echo "[FAIL]"
 	exitcode=1
@@ -134,10 +134,22 @@ else
 	echo "[PASS]"
 fi
 
-echo "------------------------------------------"
-echo "running gup_benchmark -b (pin_user_pages)"
-echo "------------------------------------------"
-./gup_benchmark -b
+echo "------------------------------------------------------"
+echo "running: gup_test -a # pin_user_pages_fast() benchmark"
+echo "------------------------------------------------------"
+./gup_test -a
+if [ $? -ne 0 ]; then
+	echo "[FAIL]"
+	exitcode=1
+else
+	echo "[PASS]"
+fi
+
+echo "------------------------------------------------------------"
+echo "# Dump pages 0, 19, and 4096, using pin_user_pages:"
+echo "running: gup_test -ct -F 0x1 0 19 0x1000 # dump_page() test"
+echo "------------------------------------------------------------"
+./gup_test -ct -F 0x1 0 19 0x1000
 if [ $? -ne 0 ]; then
 	echo "[FAIL]"
 	exitcode=1
@@ -148,7 +160,7 @@ fi
 echo "-------------------"
 echo "running userfaultfd"
 echo "-------------------"
-./userfaultfd anon 128 32
+./userfaultfd anon 20 16
 if [ $? -ne 0 ]; then
 	echo "[FAIL]"
 	exitcode=1
@@ -173,7 +185,7 @@ rm -f $mnt/ufd_test_file
 echo "-------------------------"
 echo "running userfaultfd_shmem"
 echo "-------------------------"
-./userfaultfd shmem 128 32
+./userfaultfd shmem 20 16
 if [ $? -ne 0 ]; then
 	echo "[FAIL]"
 	exitcode=1
@@ -241,6 +253,17 @@ else
 	echo "[PASS]"
 fi
 
+echo "-------------------"
+echo "running mremap_test"
+echo "-------------------"
+./mremap_test
+if [ $? -ne 0 ]; then
+	echo "[FAIL]"
+	exitcode=1
+else
+	echo "[PASS]"
+fi
+
 echo "-----------------"
 echo "running thuge-gen"
 echo "-----------------"