t/zbd: add -s option to test-zbd-support script

The total number of ZBD tests in test-zbd-support script has grown
considerably over the years and zoned drive capacity has significantly
increased as well. Today, the test run duration may reach one hour for
large drives. If a terminal session failure happens during a run, it
is more efficient to restart the tests from the point where the last
run stopped rather than from the beginning.

Add -s option to the script command line to specify the starting
test number.

Signed-off-by: Dmitry Fomichev <dmitry.fomichev@wdc.com>
Reviewed-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Link: https://lore.kernel.org/r/20240206105755.214891-6-dmitry.fomichev@wdc.com
Signed-off-by: Vincent Fu <vincent.fu@samsung.com>

diff --git a/t/zbd/test-zbd-support b/t/zbd/test-zbd-support
index defb36527b80d8a58d9a9bd20193d4e635f1bca9..c27d2ad68a7cde4ff05150f431ae81d63b248f93 100755 (executable)
--- a/t/zbd/test-zbd-support
+++ b/t/zbd/test-zbd-support
@@ -15,6 +15,7 @@ usage() {
        echo -e "\t-w Reset all zones before executing each write test case"
        echo -e "\t-o <max_open_zones> Run fio with max_open_zones limit"
        echo -e "\t-t <test #> Run only a single test case with specified number"
+       echo -e "\t-s <test #> Start testing from the case with the specified number"
        echo -e "\t-q Quit the test run after any failed test"
        echo -e "\t-z Run fio with debug=zbd option"
        echo -e "\t-u Use io_uring ioengine in place of libaio"
@@ -1602,6 +1603,7 @@ zbd_debug=
 max_open_zones_opt=
 quit_on_err=
 force_io_uring=
+start_test=1
 
 while [ "${1#-}" != "$1" ]; do
   case "$1" in
@@ -1615,6 +1617,7 @@ while [ "${1#-}" != "$1" ]; do
     -w) reset_before_write=1; shift;;
     -t) tests+=("$2"); shift; shift;;
     -o) max_open_zones_opt="${2}"; shift; shift;;
+    -s) start_test=$2; shift; shift;;
     -v) dynamic_analyzer=(valgrind "--read-var-info=yes");
        shift;;
     -q) quit_on_err=1; shift;;
@@ -1694,6 +1697,7 @@ if [[ -b "$realdev" ]]; then
                set_io_scheduler "$basename" none || exit $?
                ;;
        esac
+
 elif [[ -c "$realdev" ]]; then
        # For an SG node, we must have libzbc option specified
        if [[ ! -n "$use_libzbc" ]]; then
@@ -1772,6 +1776,7 @@ trap 'intr=1' SIGINT
 ret=0
 
 for test_number in "${tests[@]}"; do
+    [ "${test_number}" -lt "${start_test}" ] && continue
     rm -f "${logfile}.${test_number}"
     unset SKIP_REASON
     echo -n "Running test $(printf "%02d" $test_number) ... "