This v2 rebases onto the latest linux-next tag, next-20210701. A few
changes were needed, namely:
1) changes kernfs_init_failure_injection() to return int instead
of void. On the latest linux-next we have a new static build
check for this, so this mistake was captured when building.
2) I made kernfs_init_failure_injection static
3) lib/test_sysfs.c moved to the new blk_alloc_disk() added by
Christoph as direct queue allocation is no longer supported,
ie, blk_alloc_queue() is no longer exported. This work was
done by Christoph in preparation to help make add_disk*()
callers eventually return an error code and make the error
handling much saner. Because of this same change
blk_cleanup_queue() is no longer needed so we embrace
the shiny new blk_cleanup_disk().
I've put this up on my linux-next git tree [0] under the branch
named 20210701-sysfs-fix-races-v2.
[0] https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git/log/?h=20210701-sysfs-fix-races-v2
Luis Chamberlain (4):
selftests: add tests_sysfs module
kernfs: add initial failure injection support
test_sysfs: add support to use kernfs failure injection
test_sysfs: demonstrate deadlock fix
.../fault-injection/fault-injection.rst | 22 +
MAINTAINERS | 9 +-
fs/kernfs/Makefile | 1 +
fs/kernfs/failure-injection.c | 83 +
fs/kernfs/file.c | 13 +
fs/kernfs/kernfs-internal.h | 72 +
include/linux/kernfs.h | 5 +
lib/Kconfig.debug | 23 +
lib/Makefile | 1 +
lib/test_sysfs.c | 1027 ++++++++++++
tools/testing/selftests/sysfs/Makefile | 12 +
tools/testing/selftests/sysfs/config | 5 +
tools/testing/selftests/sysfs/sysfs.sh | 1376 +++++++++++++++++
13 files changed, 2648 insertions(+), 1 deletion(-)
create mode 100644 fs/kernfs/failure-injection.c
create mode 100644 lib/test_sysfs.c
create mode 100644 tools/testing/selftests/sysfs/Makefile
create mode 100644 tools/testing/selftests/sysfs/config
create mode 100755 tools/testing/selftests/sysfs/sysfs.sh
--
2.27.0
