selftests: ublk: fix behavior when fio is not installed

Some ublk selftests have strange behavior when fio is not installed.
While most tests behave correctly (run if they don't need fio, or skip
if they need fio), the following tests have different behavior:

- test_null_01, test_null_02, test_generic_01, test_generic_02, and
  test_generic_12 try to run fio without checking if it exists first,
  and fail on any failure of the fio command (including "fio command
  not found"). So these tests fail when they should skip.
- test_stress_05 runs fio without checking if it exists first, but
  doesn't fail on fio command failure. This test passes, but that pass
  is misleading as the test doesn't do anything useful without fio
  installed. So this test passes when it should skip.

Fix these issues by adding _have_program fio checks to the top of all of
these tests.

Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/tools/testing/selftests/ublk/test_generic_01.sh b/tools/testing/selftests/ublk/test_generic_01.sh
index 9227a208ba53128e4a202298316ff77e05607595..21a31cd5491aa79ffe3ad458a0055e832c619325 100755 (executable)
--- a/tools/testing/selftests/ublk/test_generic_01.sh
+++ b/tools/testing/selftests/ublk/test_generic_01.sh
@@ -10,6 +10,10 @@ if ! _have_program bpftrace; then
        exit "$UBLK_SKIP_CODE"
 fi
 
+if ! _have_program fio; then
+       exit "$UBLK_SKIP_CODE"
+fi
+
 _prep_test "null" "sequential io order"
 
 dev_id=$(_add_ublk_dev -t null)

diff --git a/tools/testing/selftests/ublk/test_generic_02.sh b/tools/testing/selftests/ublk/test_generic_02.sh
index 3e80121e3bf5e191aa9ffe1f85e1693be4fdc2d2..12920768b1a080d37fcdff93de7a0439101de09e 100755 (executable)
--- a/tools/testing/selftests/ublk/test_generic_02.sh
+++ b/tools/testing/selftests/ublk/test_generic_02.sh
@@ -10,6 +10,10 @@ if ! _have_program bpftrace; then
        exit "$UBLK_SKIP_CODE"
 fi
 
+if ! _have_program fio; then
+       exit "$UBLK_SKIP_CODE"
+fi
+
 _prep_test "null" "sequential io order for MQ"
 
 dev_id=$(_add_ublk_dev -t null -q 2)

diff --git a/tools/testing/selftests/ublk/test_generic_12.sh b/tools/testing/selftests/ublk/test_generic_12.sh
index 7abbb00d251df9403857b1c6f53aec8bf8eab176..b4046201b4d99ef5355b845ebea2c9a3924276a5 100755 (executable)
--- a/tools/testing/selftests/ublk/test_generic_12.sh
+++ b/tools/testing/selftests/ublk/test_generic_12.sh
@@ -10,6 +10,10 @@ if ! _have_program bpftrace; then
        exit "$UBLK_SKIP_CODE"
 fi
 
+if ! _have_program fio; then
+       exit "$UBLK_SKIP_CODE"
+fi
+
 _prep_test "null" "do imbalanced load, it should be balanced over I/O threads"
 
 NTHREADS=6

diff --git a/tools/testing/selftests/ublk/test_null_01.sh b/tools/testing/selftests/ublk/test_null_01.sh
index a34203f726685787da80b0e32da95e0fcb90d0b1..c2cb8f7a09fe37a9956d067fd56b28dc7ca6bd68 100755 (executable)
--- a/tools/testing/selftests/ublk/test_null_01.sh
+++ b/tools/testing/selftests/ublk/test_null_01.sh
@@ -6,6 +6,10 @@
 TID="null_01"
 ERR_CODE=0
 
+if ! _have_program fio; then
+       exit "$UBLK_SKIP_CODE"
+fi
+
 _prep_test "null" "basic IO test"
 
 dev_id=$(_add_ublk_dev -t null)

diff --git a/tools/testing/selftests/ublk/test_null_02.sh b/tools/testing/selftests/ublk/test_null_02.sh
index 5633ca8766554b22be252c7cb2d13de1bf923b90..8accd35beb55c149f74b23f0fb562e12cbf3e362 100755 (executable)
--- a/tools/testing/selftests/ublk/test_null_02.sh
+++ b/tools/testing/selftests/ublk/test_null_02.sh
@@ -6,6 +6,10 @@
 TID="null_02"
 ERR_CODE=0
 
+if ! _have_program fio; then
+       exit "$UBLK_SKIP_CODE"
+fi
+
 _prep_test "null" "basic IO test with zero copy"
 
 dev_id=$(_add_ublk_dev -t null -z)

diff --git a/tools/testing/selftests/ublk/test_stress_05.sh b/tools/testing/selftests/ublk/test_stress_05.sh
index 566cfd90d192ce8c1f98ca2539792d54a787b3d1..274295061042e5db3f4f0846ae63ea9b787fb2ee 100755 (executable)
--- a/tools/testing/selftests/ublk/test_stress_05.sh
+++ b/tools/testing/selftests/ublk/test_stress_05.sh
@@ -5,6 +5,10 @@
 TID="stress_05"
 ERR_CODE=0
 
+if ! _have_program fio; then
+       exit "$UBLK_SKIP_CODE"
+fi
+
 run_io_and_remove()
 {
        local size=$1