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From: Brendan Higgins <brendanhiggins@google.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "Theodore Y. Ts'o" <tytso@mit.edu>, shuah <shuah@kernel.org>,
	Frank Rowand <frowand.list@gmail.com>,
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Subject: Re: [PATCH v18 00/19] kunit: introduce KUnit, the Linux kernel unit testing framework
Date: Mon, 7 Oct 2019 01:40:53 -0700
Message-ID: <CAFd5g45djTX+FaXwn2abve1+6GbtNrv+8EJgDe_TXn1d+pzukA@mail.gmail.com> (raw)
In-Reply-To: <CAHk-=wjcJxypxUOSF-jc=SQKT1CrOoTMyT7soYzbvK3965JmCA@mail.gmail.com>

On Sun, Oct 6, 2019 at 10:18 AM Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> On Sun, Oct 6, 2019 at 9:55 AM Theodore Y. Ts'o <tytso@mit.edu> wrote:
> >
> > Well, one thing we *can* do is if (a) if we can create a kselftest
> > branch which we know is stable and won't change, and (b) we can get
> > assurances that Linus *will* accept that branch during the next merge
> > window, those subsystems which want to use kself test can simply pull
> > it into their tree.
>
> Yes.
>
> At the same time, I don't think it needs to be even that fancy. Even
> if it's not a stable branch that gets shared between different
> developers, it would be good to just have people do a "let's try this"
> throw-away branch to use the kunit functionality and verify that
> "yeah, this is fairly convenient for ext4".
>
> It doesn't have to be merged in that form, but just confirmation that
> the infrastructure is helpful before it gets merged would be good.

I thought we already had done this satisfactorily.

We have one proof-of-concept test in the branch in the kselftest repo
(proc sysctl test) that went out in the pull request, and we also had
some other tests that were not in the pull request (there is the ext4
timestamp stuff mentioned above, and we also had one against the list
data structure), which we were planning on sending out for review once
Shuah's pull request was accepted. I know the apparmor people also
wrote some tests that they said were useful; however, I have not
coordinated with them on upstreaming their tests. I know of some other
people who are using it, but I don't think the tests are as far along
for upstreaming.

The point is: I thought we had plenty of signal that KUnit would be
useful to have merged into the mainline kernel. I thought the only
reason it was rejected for 5.4 was due to the directory name issue
combined with bad timing.

Please correct me if I missed anything.

Thanks!
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Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-23  9:02 Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 01/19] kunit: test: add KUnit test runner core Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 02/19] kunit: test: add test resource management API Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 03/19] kunit: test: add string_stream a std::stream like string builder Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 04/19] kunit: test: add assertion printing library Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 05/19] kunit: test: add the concept of expectations Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 06/19] lib: enable building KUnit in lib/ Brendan Higgins
2019-09-23 15:35   ` Stephen Boyd
2019-09-23  9:02 ` [PATCH v18 07/19] kunit: test: add initial tests Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 08/19] objtool: add kunit_try_catch_throw to the noreturn list Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 09/19] kunit: test: add support for test abort Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 10/19] kunit: test: add tests for kunit " Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 11/19] kunit: test: add the concept of assertions Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 12/19] kunit: test: add tests for KUnit managed resources Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 13/19] kunit: tool: add Python wrappers for running KUnit tests Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 14/19] kunit: defconfig: add defconfigs for building " Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 15/19] Documentation: kunit: add documentation for KUnit Brendan Higgins
2019-09-23 15:47   ` Randy Dunlap
2019-09-23 18:06     ` Brendan Higgins
2019-09-23 19:49       ` Randy Dunlap
2019-09-23 21:18         ` shuah
2019-09-23 21:30           ` Randy Dunlap
2019-09-24  0:51   ` Randy Dunlap
2019-09-23  9:02 ` [PATCH v18 16/19] MAINTAINERS: add entry for KUnit the unit testing framework Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 17/19] kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec() Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 18/19] MAINTAINERS: add proc sysctl KUnit test to PROC SYSCTL section Brendan Higgins
2019-09-23  9:02 ` [PATCH v18 19/19] kunit: fix failure to build without printk Brendan Higgins
2019-10-04 21:38 ` [PATCH v18 00/19] kunit: introduce KUnit, the Linux kernel unit testing framework Theodore Y. Ts'o
2019-10-04 21:42   ` Linus Torvalds
2019-10-04 21:59     ` shuah
2019-10-04 22:27       ` Brendan Higgins
2019-10-04 22:47         ` shuah
2019-10-04 23:10           ` Brendan Higgins
2019-10-04 23:15             ` shuah
2019-10-04 23:29           ` Theodore Y. Ts'o
2019-10-04 23:52             ` Brendan Higgins
2019-10-04 23:57               ` shuah
2019-10-05  0:33                 ` Brendan Higgins
2019-10-05  0:49                   ` shuah
2019-10-05  1:18                     ` Brendan Higgins
2019-10-06 16:54                       ` Theodore Y. Ts'o
2019-10-06 17:18                         ` Linus Torvalds
2019-10-07  8:40                           ` Brendan Higgins [this message]
2019-10-07 14:42                             ` shuah
2019-10-07 14:40                           ` Steven Rostedt
2019-10-07 14:57                             ` shuah
2019-10-07  8:20                         ` Brendan Higgins

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