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authorMike Kravetz <mike.kravetz@oracle.com>2017-02-23 00:43:07 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-23 01:41:28 +0100
commit9903bd7b73ef0dec429e951009b36643eb0fe239 (patch)
tree69bc311c09890f105b321b1bafda32db8b147b7c /tools/testing/selftests/vm/Makefile
parentuserfaultfd: hugetlbfs: allow registration of ranges containing huge pages (diff)
downloadlinux-9903bd7b73ef0dec429e951009b36643eb0fe239.tar.xz
linux-9903bd7b73ef0dec429e951009b36643eb0fe239.zip
userfaultfd: hugetlbfs: add userfaultfd_hugetlb test
Test userfaultfd hugetlb functionality by using the existing testing method (in userfaultfd.c). Instead of an anonymous memeory, a hugetlbfs file is mmap'ed private. In this way fallocate hole punch can be used to release pages. This is because madvise(MADV_DONTNEED) is not supported for huge pages. Use the same file, but create wrappers for allocating ranges and releasing pages. Compile userfaultfd.c with HUGETLB_TEST defined to produce an executable to test userfaultfd hugetlb functionality. Link: http://lkml.kernel.org/r/20161216144821.5183-23-aarcange@redhat.com Signed-off-by: Mike Kravetz <mike.kravetz@oracle.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 Rapoport <rppt@linux.vnet.ibm.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/testing/selftests/vm/Makefile')
-rw-r--r--tools/testing/selftests/vm/Makefile4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile
index bbab7f4664ac..0114aac78e1f 100644
--- a/tools/testing/selftests/vm/Makefile
+++ b/tools/testing/selftests/vm/Makefile
@@ -10,6 +10,7 @@ BINARIES += on-fault-limit
BINARIES += thuge-gen
BINARIES += transhuge-stress
BINARIES += userfaultfd
+BINARIES += userfaultfd_hugetlb
BINARIES += mlock-random-test
all: $(BINARIES)
@@ -18,6 +19,9 @@ all: $(BINARIES)
userfaultfd: userfaultfd.c ../../../../usr/include/linux/kernel.h
$(CC) $(CFLAGS) -O2 -o $@ $< -lpthread
+userfaultfd_hugetlb: userfaultfd.c ../../../../usr/include/linux/kernel.h
+ $(CC) $(CFLAGS) -DHUGETLB_TEST -O2 -o $@ $< -lpthread
+
mlock-random-test: mlock-random-test.c
$(CC) $(CFLAGS) -o $@ $< -lcap