github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-26 08:02:27 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

selftests: ublk: add one stress test for covering IO vs. removing device

Browse Source 
Add stress_test_01 for running IO vs. removing device for verifying that
ublk device removal can work as expected when heavy IO workloads are in
progress.

null, loop and loop/zc are covered in this tests.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250303124324.3563605-10-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Ming Lei 2025-03-03 20:43:19 +08:00 committed by Jens Axboe
parent 87a9265213
commit c60ac48eab
3 changed files with 75 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/testing/selftests/ublk/Makefile
View File

@ -9,6 +9,8 @@ TEST_PROGS += test_loop_02.sh
TEST_PROGS += test_loop_03.sh
TEST_PROGS += test_loop_04.sh
TEST_PROGS += test_stress_01.sh
TEST_GEN_PROGS_EXTENDED = kublk
include ../lib.mk

26
tools/testing/selftests/ublk/test_common.sh
View File

@ -155,5 +155,31 @@ _add_ublk_dev() {
echo "${dev_id}"
}
__remove_ublk_dev_return() {
local dev_id=$1
${UBLK_PROG} del -n "${dev_id}"
local res=$?
udevadm settle
return ${res}
}
__run_io_and_remove()
{
local dev_id=$1
local size=$2
fio --name=job1 --filename=/dev/ublkb"${dev_id}" --ioengine=libaio \
--rw=readwrite --iodepth=64 --size="${size}" --numjobs=4 \
--runtime=20 --time_based > /dev/null 2>&1 &
sleep 2
if ! __remove_ublk_dev_return "${dev_id}"; then
echo "delete dev ${dev_id} failed"
return 255
fi
wait
}
UBLK_PROG=$(pwd)/kublk
export UBLK_PROG

47
tools/testing/selftests/ublk/test_stress_01.sh Executable file
View File

@ -0,0 +1,47 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
. test_common.sh
TID="stress_01"
ERR_CODE=0
DEV_ID=-1
ublk_io_and_remove()
{
local size=$1
shift 1
local backfile=""
if echo "$@" | grep -q "loop"; then
backfile=${*: -1}
fi
DEV_ID=$(_add_ublk_dev "$@")
_check_add_dev $TID $? "${backfile}"
echo "run ublk IO vs. remove device(ublk add $*)"
if ! __run_io_and_remove "${DEV_ID}" "${size}"; then
echo "/dev/ublkc${DEV_ID} isn't removed"
_remove_backfile "${backfile}"
exit 255
fi
}
_prep_test "stress" "run IO and remove device"
ublk_io_and_remove 8G -t null
ERR_CODE=$?
if [ ${ERR_CODE} -ne 0 ]; then
_show_result $TID $ERR_CODE
fi
BACK_FILE=$(_create_backfile 256M)
ublk_io_and_remove 256M -t loop "${BACK_FILE}"
ERR_CODE=$?
if [ ${ERR_CODE} -ne 0 ]; then
_show_result $TID $ERR_CODE
fi
ublk_io_and_remove 256M -t loop -z "${BACK_FILE}"
ERR_CODE=$?
_cleanup_test "stress"
_remove_backfile "${BACK_FILE}"
_show_result $TID $ERR_CODE