[PATCH 0/3] mm: memcontrol: simplify page->mem_cgroup pinning

This simplifies the way page->mem_cgroup is pinned. After this series,
lock_page_memcg() is simpler to use, and only necessary if the page is
neither isolated from the LRU nor fully locked.

 fs/buffer.c                | 18 ++++++++---------
 fs/xfs/xfs_aops.c          |  7 +++----
 include/linux/memcontrol.h | 46 ++++++++++++++++++++++---------------------
 include/linux/mm.h         | 14 ++-----------
 include/linux/pagemap.h    |  3 +--
 mm/filemap.c               | 21 ++++++--------------
 mm/memcontrol.c            | 36 +++++++++++++++------------------
 mm/migrate.c               | 14 +++++++------
 mm/page-writeback.c        | 47 ++++++++++++++++++--------------------------
 mm/rmap.c                  | 16 ++++++---------
 mm/shmem.c                 |  2 +-
 mm/truncate.c              |  6 +-----
 mm/vmscan.c                |  7 +------
 mm/workingset.c            |  9 ++++-----
 14 files changed, 100 insertions(+), 146 deletions(-)