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Subject[RFC PATCH 0/2] mm/gup: introduce vaddr_pin_pages_remote(), FOLL_PIN
From: John Hubbard <>


Dave Chinner's head didn't seem to explode...much, when he saw Ira's
series, so I optimistically started taking it from there...this builds on
top of Ira's patchset that he just sent out:

"[RFC PATCH v2 00/19] RDMA/FS DAX truncate proposal V1,000,002 ;-)" [1]

...which in turn is based on the latest -mmotm.

If Ira's series and this one are both acceptable, then

a) I'll rework the 41-patch "put_user_pages(): miscellaneous call
sites" series, and

b) note that this will take rather longer and will be quite a bit more
intrusive for each call site (but it's worth it), due to the
need to plumb the owning struct file* all the way down to the gup()
call. whew.



John Hubbard (2):
mm/gup: introduce FOLL_PIN flag for get_user_pages()
mm/gup: introduce vaddr_pin_pages_remote()

drivers/infiniband/core/umem_odp.c | 15 ++++----
include/linux/mm.h | 8 +++++
mm/gup.c | 55 +++++++++++++++++++++++++++++-
3 files changed, 71 insertions(+), 7 deletions(-)


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