mm/hmm: use uint64_t for HMM pfn instead of defining hmm_pfn_t to ulong
authorJérôme Glisse <jglisse@redhat.com>
Tue, 10 Apr 2018 23:28:38 +0000 (16:28 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 11 Apr 2018 17:28:30 +0000 (10:28 -0700)
commitff05c0c6bbe5043af6a1686522ed845f40ba49ee
tree9799943dde9991379fc2569182f5ba5cf7accad7
parent86586a41b8fe655e28be418a40e9bb2bb478cdd5
mm/hmm: use uint64_t for HMM pfn instead of defining hmm_pfn_t to ulong

All device driver we care about are using 64bits page table entry.  In
order to match this and to avoid useless define convert all HMM pfn to
directly use uint64_t.  It is a first step on the road to allow driver to
directly use pfn value return by HMM (saving memory and CPU cycles use for
conversion between the two).

Link: http://lkml.kernel.org/r/20180323005527.758-9-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Cc: Evgeny Baskakov <ebaskakov@nvidia.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Mark Hairgrove <mhairgrove@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/hmm.h
mm/hmm.c