The patch titled
Subject: selftests/vm: run_vmtests: invoke gup_benchmark with basic FOLL_PIN coverage
has been removed from the -mm tree. Its filename was
selftests-vm-run_vmtests-invoke-gup_benchmark-with-basic-foll_pin-coverage.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: John Hubbard <jhubbard@xxxxxxxxxx>
Subject: selftests/vm: run_vmtests: invoke gup_benchmark with basic FOLL_PIN coverage
It's good to have basic unit test coverage of the new FOLL_PIN behavior.
Fortunately, the gup_benchmark unit test is extremely fast (a few
milliseconds), so adding it the the run_vmtests suite is going to cause no
noticeable change in running time.
So, add two new invocations to run_vmtests:
1) Run gup_benchmark with normal get_user_pages().
2) Run gup_benchmark with pin_user_pages(). This is much like the
first call, except that it sets FOLL_PIN.
Running these two in quick succession also provide a visual comparison of
the running times, which is convenient.
The new invocations are fairly early in the run_vmtests script, because
with test suites, it's usually preferable to put the shorter, faster tests
first, all other things being equal.
Link: http://lkml.kernel.org/r/20200211001536.1027652-11-jhubbard@xxxxxxxxxx
Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
Reviewed-by: Ira Weiny <ira.weiny@xxxxxxxxx>
Cc: Jan Kara <jack@xxxxxxx>
Cc: Jérôme Glisse <jglisse@xxxxxxxxxx>
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Dave Chinner <david@xxxxxxxxxxxxx>
Cc: Jason Gunthorpe <jgg@xxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/vm/run_vmtests | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
--- a/tools/testing/selftests/vm/run_vmtests~selftests-vm-run_vmtests-invoke-gup_benchmark-with-basic-foll_pin-coverage
+++ a/tools/testing/selftests/vm/run_vmtests
@@ -123,6 +123,28 @@ else
echo "[PASS]"
fi
+echo "--------------------------------------------"
+echo "running 'gup_benchmark -U' (normal/slow gup)"
+echo "--------------------------------------------"
+./gup_benchmark -U
+if [ $? -ne 0 ]; then
+ echo "[FAIL]"
+ exitcode=1
+else
+ echo "[PASS]"
+fi
+
+echo "------------------------------------------"
+echo "running gup_benchmark -b (pin_user_pages)"
+echo "------------------------------------------"
+./gup_benchmark -b
+if [ $? -ne 0 ]; then
+ echo "[FAIL]"
+ exitcode=1
+else
+ echo "[PASS]"
+fi
+
echo "-------------------"
echo "running userfaultfd"
echo "-------------------"
_
Patches currently in -mm which might be from jhubbard@xxxxxxxxxx are
checkpatch-support-base-commit-format.patch
