[PATCHv3 0/2] mm: use_mm/unuse_mm

[Michael S. Tsirkin]

This moves use_mm/unuse_mm from aio into mm, and optimizes atomic usage
there. Original patchset also exported use_mm/unuse_mm to modules, for
use by vhost, that bit will come in later when vhost is posted for
inclusion.

Michael S. Tsirkin (2):
  mm: move use_mm/unuse_mm from aio.c to mm/
  mm: reduce atomic use on use_mm fast path

 fs/aio.c                    |   47 +----------------------------------
 include/linux/mmu_context.h |    9 ++++++
 mm/Makefile                 |    2 +-
 mm/mmu_context.c            |   58 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 69 insertions(+), 47 deletions(-)
 create mode 100644 include/linux/mmu_context.h
 create mode 100644 mm/mmu_context.c
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