Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"7 patches.
Subsystems affected by this patch series: lib, ocfs2, and mm (slub,
migration, and memcg)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/memcg: fix NULL pointer dereference in memcg_slab_free_hook()
slub: fix unreclaimable slab stat for bulk free
mm/migrate: fix NR_ISOLATED corruption on 64-bit
mm: memcontrol: fix blocking rstat function called from atomic cgroup1 thresholding code
ocfs2: issue zeroout to EOF blocks
ocfs2: fix zero out valid data
lib/test_string.c: move string selftest in the Runtime Testing menu
