tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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selftests: ublk: don't take same backing file for more than one ublk devices

Don't use same backing file for more than one ublk devices, and avoid
concurrent write on same file from more ublk disks.

Fixes: 8ccebc19ee3d ("selftests: ublk: support UBLK_F_AUTO_BUF_REG")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250623011934.741788-3-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

authored by

Ming Lei and committed by
Jens Axboe 5223372e 524346e9

+3 -2
+3 -2
tools/testing/selftests/ublk/test_stress_03.sh
··· 32 32 ublk_io_and_remove 8G -t null -q 4 -z & 33 33 ublk_io_and_remove 256M -t loop -q 4 -z "${UBLK_BACKFILES[0]}" & 34 34 ublk_io_and_remove 256M -t stripe -q 4 -z "${UBLK_BACKFILES[1]}" "${UBLK_BACKFILES[2]}" & 35 + wait 35 36 36 37 if _have_feature "AUTO_BUF_REG"; then 37 38 ublk_io_and_remove 8G -t null -q 4 --auto_zc & 38 39 ublk_io_and_remove 256M -t loop -q 4 --auto_zc "${UBLK_BACKFILES[0]}" & 39 40 ublk_io_and_remove 256M -t stripe -q 4 --auto_zc "${UBLK_BACKFILES[1]}" "${UBLK_BACKFILES[2]}" & 40 41 ublk_io_and_remove 8G -t null -q 4 -z --auto_zc --auto_zc_fallback & 42 + wait 41 43 fi 42 - wait 43 44 44 45 if _have_feature "PER_IO_DAEMON"; then 45 46 ublk_io_and_remove 8G -t null -q 4 --auto_zc --nthreads 8 --per_io_tasks & 46 47 ublk_io_and_remove 256M -t loop -q 4 --auto_zc --nthreads 8 --per_io_tasks "${UBLK_BACKFILES[0]}" & 47 48 ublk_io_and_remove 256M -t stripe -q 4 --auto_zc --nthreads 8 --per_io_tasks "${UBLK_BACKFILES[1]}" "${UBLK_BACKFILES[2]}" & 48 49 ublk_io_and_remove 8G -t null -q 4 -z --auto_zc --auto_zc_fallback --nthreads 8 --per_io_tasks & 50 + wait 49 51 fi 50 - wait 51 52 52 53 _cleanup_test "stress" 53 54 _show_result $TID $ERR_CODE