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author | Shuah Khan (Samsung OSG) <shuah@kernel.org> | 2018-05-10 22:59:25 +0300 |
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committer | Shuah Khan (Samsung OSG) <shuah@kernel.org> | 2018-05-31 00:29:06 +0300 |
commit | 8eecdd4d040233daacfde20d0f5c7191c9125e17 (patch) | |
tree | 382ac632407147aed9d2535312526c136b5a059b /tools/testing/selftests/memfd/run_hugetlbfs_test.sh | |
parent | 57aefc7c226dae84e2724fc0229d85870a70ad24 (diff) | |
download | linux-8eecdd4d040233daacfde20d0f5c7191c9125e17.tar.xz |
selftests: memfd: split regular and hugetlbfs tests
Split normal memfd and hugetlbfs tests to improve the test reporting.
Remove run_fuse_test.sh and memfd_test from run_tests.sh and add them
to the Makefile.
Add memfd_test to TEST_GEN_PROGS to be run separately.
Rename run_tests.sh to run_hugetlbfs_test.sh
Add run_fuse_test.sh and run_hugetlbfs_test.sh to TEST_PROGS
The report for non-root run wth this change is:
TAP version 13
selftests: memfd: memfd_test
========================================
memfd: CREATE
memfd: BASIC
memfd: SEAL-WRITE
memfd: SEAL-SHRINK
memfd: SEAL-GROW
memfd: SEAL-RESIZE
memfd: SHARE-DUP
memfd: SHARE-MMAP
memfd: SHARE-OPEN
memfd: SHARE-FORK
memfd: SHARE-DUP (shared file-table)
memfd: SHARE-MMAP (shared file-table)
memfd: SHARE-OPEN (shared file-table)
memfd: SHARE-FORK (shared file-table)
memfd: DONE
ok 1..1 selftests: memfd: memfd_test [PASS]
selftests: memfd: run_fuse_test.sh
========================================
opening: ./mnt/memfd
fuse: DONE
ok 1..2 selftests: memfd: run_fuse_test.sh [PASS]
selftests: memfd: run_hugetlbfs_test.sh
========================================
Please run memfd with hugetlbfs test as root
not ok 1..3 selftests: memfd: run_hugetlbfs_test.sh [SKIP]
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Diffstat (limited to 'tools/testing/selftests/memfd/run_hugetlbfs_test.sh')
-rwxr-xr-x | tools/testing/selftests/memfd/run_hugetlbfs_test.sh | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/tools/testing/selftests/memfd/run_hugetlbfs_test.sh b/tools/testing/selftests/memfd/run_hugetlbfs_test.sh new file mode 100755 index 000000000000..fb633eeb0290 --- /dev/null +++ b/tools/testing/selftests/memfd/run_hugetlbfs_test.sh @@ -0,0 +1,68 @@ +#!/bin/bash +# please run as root + +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + +# +# To test memfd_create with hugetlbfs, there needs to be hpages_test +# huge pages free. Attempt to allocate enough pages to test. +# +hpages_test=8 + +# +# Get count of free huge pages from /proc/meminfo +# +while read name size unit; do + if [ "$name" = "HugePages_Free:" ]; then + freepgs=$size + fi +done < /proc/meminfo + +# +# If not enough free huge pages for test, attempt to increase +# +if [ -n "$freepgs" ] && [ $freepgs -lt $hpages_test ]; then + nr_hugepgs=`cat /proc/sys/vm/nr_hugepages` + hpages_needed=`expr $hpages_test - $freepgs` + + if [ $UID != 0 ]; then + echo "Please run memfd with hugetlbfs test as root" + exit $ksft_skip + fi + + echo 3 > /proc/sys/vm/drop_caches + echo $(( $hpages_needed + $nr_hugepgs )) > /proc/sys/vm/nr_hugepages + while read name size unit; do + if [ "$name" = "HugePages_Free:" ]; then + freepgs=$size + fi + done < /proc/meminfo +fi + +# +# If still not enough huge pages available, exit. But, give back any huge +# pages potentially allocated above. +# +if [ $freepgs -lt $hpages_test ]; then + # nr_hugepgs non-zero only if we attempted to increase + if [ -n "$nr_hugepgs" ]; then + echo $nr_hugepgs > /proc/sys/vm/nr_hugepages + fi + printf "Not enough huge pages available (%d < %d)\n" \ + $freepgs $needpgs + exit $ksft_skip +fi + +# +# Run the hugetlbfs test +# +./memfd_test hugetlbfs +./run_fuse_test.sh hugetlbfs + +# +# Give back any huge pages allocated for the test +# +if [ -n "$nr_hugepgs" ]; then + echo $nr_hugepgs > /proc/sys/vm/nr_hugepages +fi |