Commit 6aecda00 authored Mar 01, 2025 by Ming Lei Committed by Jens Axboe Feb 28, 2025

selftests: ublk: add kernel selftests for ublk



Both ublk driver and userspace heavily depends on io_uring subsystem,
and tools/testing/selftests/ should be the best place for holding this
cross-subsystem tests.

Add basic read/write IO test over this ublk null disk, and make sure ublk
working.

More tests will be added.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250228161919.2869102-2-ming.lei@redhat.com


Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent ed9f3112

MAINTAINERS

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Original line number	Diff line number	Diff line
		@@ -24237,6 +24237,7 @@ S: Maintained
		F: Documentation/block/ublk.rst
		F: drivers/block/ublk_drv.c
		F: include/uapi/linux/ublk_cmd.h
		F: tools/testing/selftests/ublk/

		UBSAN
		M: Kees Cook <kees@kernel.org>

tools/testing/selftests/Makefile

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Original line number	Diff line number	Diff line
		@@ -113,6 +113,7 @@ endif
		TARGETS += tmpfs
		TARGETS += tpm2
		TARGETS += tty
		TARGETS += ublk
		TARGETS += uevent
		TARGETS += user_events
		TARGETS += vDSO

tools/testing/selftests/ublk/.gitignore

0 → 100644

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Original line number	Diff line number	Diff line
		kublk
		/tools
		*-verify.state

tools/testing/selftests/ublk/Makefile

0 → 100644

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		# SPDX-License-Identifier: GPL-2.0

		CFLAGS += -O3 -Wl,-no-as-needed -Wall -I $(top_srcdir)
		LDLIBS += -lpthread -lm -luring

		TEST_PROGS := test_null_01.sh

		TEST_GEN_PROGS_EXTENDED = kublk

		include ../lib.mk

		$(TEST_GEN_PROGS_EXTENDED): kublk.c null.c

tools/testing/selftests/ublk/config

0 → 100644

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Original line number	Diff line number	Diff line
		CONFIG_BLK_DEV_UBLK=m