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authorMike Rapoport <rppt@linux.vnet.ibm.com>2017-02-23 02:43:25 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-23 03:41:28 +0300
commit4c27fe4c4c84f3afd504ecff2420cc1ad420d38e (patch)
tree60a79c14f27f4428daccc7c48be7155660102c8e /COPYING
parentba6907db6de17cf90c4fc67f3eb1d1d37dd0b7ac (diff)
downloadlinux-4c27fe4c4c84f3afd504ecff2420cc1ad420d38e.tar.xz
userfaultfd: shmem: add shmem_mcopy_atomic_pte for userfaultfd support
shmem_mcopy_atomic_pte is the low level routine that implements the userfaultfd UFFDIO_COPY command. It is based on the existing mcopy_atomic_pte routine with modifications for shared memory pages. Link: http://lkml.kernel.org/r/20161216144821.5183-29-aarcange@redhat.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Michael Rapoport <RAPOPORT@il.ibm.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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