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    Subject[PATCH 0/14] mm: tmpfs and trunc changes, affecting drm
    Here's a patchset for mmotm, based on 30-rc1.  Nothing exciting,
    mostly cleanup, preparation for what will probably be two more
    patchsets coming over the next few weeks, first simplifying tmpfs
    by getting rid of its ->readpage (give it a splice instead), then
    getting rid of its peculiar swap index (use radix_tree instead).

    The ordering here is somewhat illogical, arranged in the hope that
    at least the first four can get into 30-rc, which would simplify
    the dependencies between linux-next and mmotm.

    The first is just an independent fix (I think) noticed on the way.
    2,3,4 affect the interface between tmpfs and drm very slightly.
    Once they're in 30-rc, drm maintainers could take 5,6,7,8 out of
    mmotm and into linux-next (or even 30-rc).

    1/14 mm: invalidate_mapping_pages flush cleancache
    2/14 mm: move vmtruncate_range to truncate.c
    3/14 tmpfs: take control of its truncate_range
    4/14 tmpfs: add shmem_read_mapping_page_gfp
    5/14 drm/ttm: use shmem_read_mapping_page
    6/14 drm/i915: use shmem_read_mapping_page
    7/14 drm/i915: adjust to new truncate_range
    8/14 drm/i915: more struct_mutex locking
    9/14 mm: cleanup descriptions of filler arg
    10/14 mm: truncate functions are in truncate.c
    11/14 mm: tidy vmtruncate_range and related functions
    12/14 mm: consistent truncate and invalidate loops
    13/14 mm: pincer in truncate_inode_pages_range
    14/14 tmpfs: no need to use i_lock

    drivers/gpu/drm/i915/i915_dma.c | 3
    drivers/gpu/drm/i915/i915_gem.c | 36 ++---
    drivers/gpu/drm/i915/intel_overlay.c | 5
    drivers/gpu/drm/ttm/ttm_tt.c | 4
    include/linux/mm.h | 3
    include/linux/pagemap.h | 22 ++-
    mm/filemap.c | 14 +-
    mm/memory.c | 24 ---
    mm/shmem.c | 79 +++++++-----
    mm/truncate.c | 161 +++++++++++++------------
    10 files changed, 185 insertions(+), 166 deletions(-)


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