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authorMike Rapoport <rppt@linux.vnet.ibm.com>2017-02-22 15:43:40 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-22 16:41:28 -0800
commitcac673292b9b39493bb0ff526b96c83ace6fdcd0 (patch)
tree7d8dbcd6cabcdf35cc2866b672c65be98cc1e5be /tools
parentcfda05267f7bd02b5ae5ac6a37fbbdf3b9c41b57 (diff)
userfaultfd: shmem: allow registration of shared memory ranges
Expand the userfaultfd_register/unregister routines to allow shared memory VMAs. Currently, there is no UFFDIO_ZEROPAGE and write-protection support for shared memory VMAs, which is reflected in ioctl methods supported by uffdio_register. Link: http://lkml.kernel.org/r/20161216144821.5183-34-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>
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/vm/userfaultfd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c
index 3011711212ca..d753a9161411 100644
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c
@@ -129,7 +129,7 @@ static void allocate_area(void **alloc_area)
#else /* HUGETLB_TEST */
-#define EXPECTED_IOCTLS UFFD_API_RANGE_IOCTLS_HPAGE
+#define EXPECTED_IOCTLS UFFD_API_RANGE_IOCTLS_BASIC
static int release_pages(char *rel_area)
{