[PATCH 0/4] shmem: radix-tree cleanups and swapoff optimizations

[Konstantin Khlebnikov]

Here some shmem patches related to the radix-tree iterator patchset,
they cleans radix-tree usage in shmem and notably optimizes swapoff operation.
Last patch is slightly off-topic, but it shares test results with previous patch.

---

Konstantin Khlebnikov (4):
      shmem: simlify shmem_unlock_mapping
      shmem: tag swap entries in radix tree
      shmem: use radix-tree iterator in shmem_unuse_inode()
      mm: use swap readahead at swapoff


 include/linux/radix-tree.h |    1 
 lib/radix-tree.c           |   93 --------------------------------------------
 mm/shmem.c                 |   60 ++++++++++++++++++++--------
 mm/swapfile.c              |    3 -
 4 files changed, 44 insertions(+), 113 deletions(-)

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