]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
mm/hmm: remove HMM_PFN_READ flag and ignore peculiar architecture
authorJérôme Glisse <jglisse@redhat.com>
Tue, 10 Apr 2018 23:28:34 +0000 (16:28 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 11 Apr 2018 17:28:30 +0000 (10:28 -0700)
commit86586a41b8fe655e28be418a40e9bb2bb478cdd5
treed8ea7dec933ff425240e74a8521bbf6bbbd39450
parent08232a4544cc6befaabfbec2087bedaf21b0da34
mm/hmm: remove HMM_PFN_READ flag and ignore peculiar architecture

Only peculiar architecture allow write without read thus assume that any
valid pfn do allow for read.  Note we do not care for write only because
it does make sense with thing like atomic compare and exchange or any
other operations that allow you to get the memory value through them.

Link: http://lkml.kernel.org/r/20180323005527.758-8-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