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b=fJys7LvsoVVVknZjFngPHDcjKFn3LaoAIMuXeiTvlE4PVCSe5jgn0CdghHhAg0i+7 Nq2qRiOkWybWy+d6dFjpmNUOFeenqV4chIXDaxJFsmRi8QxmuCeJmveoJXBeOTxPRX RvQpXRKnKgfMyhMMLeI3nasaM+2YMYesYC1x13IagcjQBxX4f5mxyem4INd98mDX8c xSC7aldwdEtvZR8m8wMMPttXxkPwxxcJODN7Sh0tH8UU/kpioNP9NBhkpuNI63jLtT CnwTwjspBvrn4SdMhyLmlJNsnoJCP+E1Za+iJKk64XotlBKhWUoASH6Lckowy5wylQ GlPK6D4vo4kmg== Date: Sun, 16 Nov 2025 20:36:27 +0200 From: Mike Rapoport To: Pasha Tatashin Cc: pratyush@kernel.org, jasonmiu@google.com, graf@amazon.com, dmatlack@google.com, rientjes@google.com, corbet@lwn.net, rdunlap@infradead.org, ilpo.jarvinen@linux.intel.com, kanie@linux.alibaba.com, ojeda@kernel.org, aliceryhl@google.com, masahiroy@kernel.org, akpm@linux-foundation.org, tj@kernel.org, yoann.congal@smile.fr, mmaurer@google.com, roman.gushchin@linux.dev, chenridong@huawei.com, axboe@kernel.dk, mark.rutland@arm.com, jannh@google.com, vincent.guittot@linaro.org, hannes@cmpxchg.org, dan.j.williams@intel.com, david@redhat.com, joel.granados@kernel.org, rostedt@goodmis.org, anna.schumaker@oracle.com, song@kernel.org, zhangguopeng@kylinos.cn, linux@weissschuh.net, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, gregkh@linuxfoundation.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, rafael@kernel.org, dakr@kernel.org, bartosz.golaszewski@linaro.org, cw00.choi@samsung.com, myungjoo.ham@samsung.com, yesanishhere@gmail.com, Jonathan.Cameron@huawei.com, quic_zijuhu@quicinc.com, aleksander.lobakin@intel.com, ira.weiny@intel.com, andriy.shevchenko@linux.intel.com, leon@kernel.org, lukas@wunner.de, bhelgaas@google.com, wagi@kernel.org, djeffery@redhat.com, stuart.w.hayes@gmail.com, ptyadav@amazon.de, lennart@poettering.net, brauner@kernel.org, linux-api@vger.kernel.org, linux-fsdevel@vger.kernel.org, saeedm@nvidia.com, ajayachandra@nvidia.com, jgg@nvidia.com, parav@nvidia.com, leonro@nvidia.com, witu@nvidia.com, hughd@google.com, skhawaja@google.com, chrisl@kernel.org Subject: Re: [PATCH v5 22/22] tests/liveupdate: Add in-kernel liveupdate test Message-ID: References: <20251107210526.257742-1-pasha.tatashin@soleen.com> <20251107210526.257742-23-pasha.tatashin@soleen.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 306A2C000B X-Stat-Signature: baaaaipb7yyi5cz87ejug1kfgi3tp3uu X-Rspam-User: X-HE-Tag: 1763318213-846171 X-HE-Meta: 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 KmCF/+li D5MQdzQMapahyO+Te82hoJxt7Q30fiMz7JnB67rRSNWOWCoSBn+5Tf3J61qKrEz7JIoZnIQO2LE53AlAwHPZxhFEyXDzmcwJCT3OCtOgnBsNSiKVi0Cq8PrhiqlxSJqVOLcgqZpFZCbI0P+x8Ydhgby+QX0pAUASnS+y6rIae3aJaf/lrd+B5dVGp3DVunmRoN45FqyEwMWzZnceLxgypvSGnYRlQyz0HbxGxsNsjWREaTyi2PHKFwixKLTMiFDRySrDzEuN1LFwbR1Ee+ej2X1Ca/mmbg4SoFvpTsfij32Jkmf1PwMTK+v96Un2dytFhzXW89D/HlBf81/qn4WJx3X12V0drdsZVqyzPlf9d5GJ/t1uoFm3/5Jc8o6vJ2/QPgU8DwKkvG8nFyLg+1J86ubvcdQkn+pgRQ4pPM+4/QAAEhyIB8y5ocQphYg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Nov 12, 2025 at 03:40:53PM -0500, Pasha Tatashin wrote: > On Wed, Nov 12, 2025 at 3:24 PM Mike Rapoport wrote: > > > > On Fri, Nov 07, 2025 at 04:03:20PM -0500, Pasha Tatashin wrote: > > > Introduce an in-kernel test module to validate the core logic of the > > > Live Update Orchestrator's File-Lifecycle-Bound feature. This > > > provides a low-level, controlled environment to test FLB registration > > > and callback invocation without requiring userspace interaction or > > > actual kexec reboots. > > > > > > The test is enabled by the CONFIG_LIVEUPDATE_TEST Kconfig option. > > > > > > Signed-off-by: Pasha Tatashin > > > --- > > > kernel/liveupdate/luo_file.c | 2 + > > > kernel/liveupdate/luo_internal.h | 8 ++ > > > lib/Kconfig.debug | 23 ++++++ > > > lib/tests/Makefile | 1 + > > > lib/tests/liveupdate.c | 130 +++++++++++++++++++++++++++++++ > > > 5 files changed, 164 insertions(+) > > > create mode 100644 lib/tests/liveupdate.c > > > > > > diff --git a/kernel/liveupdate/luo_file.c b/kernel/liveupdate/luo_file.c > > > index 713069b96278..4c0a75918f3d 100644 > > > --- a/kernel/liveupdate/luo_file.c > > > +++ b/kernel/liveupdate/luo_file.c > > > @@ -829,6 +829,8 @@ int liveupdate_register_file_handler(struct liveupdate_file_handler *fh) > > > INIT_LIST_HEAD(&fh->flb_list); > > > list_add_tail(&fh->list, &luo_file_handler_list); > > > > > > + liveupdate_test_register(fh); > > > + > > > > Do it mean that every flb user will be added here? > > No, FLB users will use: > > liveupdate_register_flb() from various subsystems. This > liveupdate_test_register() is only to allow kernel test to register > test-FLBs to every single file-handler for in-kernel testing purpose > only. Why the in kernel test cannot liveupdate_register_flb()? > Pasha -- Sincerely yours, Mike.