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

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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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