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b=d+36XpUkgooOOplYjFcXSlkiRz9QJ9mw3TH5MHjiR6eSeLeykbimRz9eODBPmYD4f Ej5+lc/S0OkUv84FBV83fgl+AKDrJNl+kGSPHK549sQ8fWypqZkB4JnN2UYUeJDApu 7qry8j+l66Ji7mT8iOgQWAU2FD9W+xkoybuLpEhH/qyA0gfSxOzw7azcWlz9JWNXTP 64UKmeUlQIpxjTIydSTLHMsFBE8EQUgngt5ecZ0+6dOCpxMKxShHCRMDZ3UQICc2Vb xy5Os9Jr0mPExUf8Ubchkkc3k4+8GbI0RUjVMScWeibdxclYKM23yJpGreGXsCilWw XrlAzdRBdVg7w== Date: Mon, 17 Nov 2025 13:13:51 +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, 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 v6 20/20] tests/liveupdate: Add in-kernel liveupdate test Message-ID: References: <20251115233409.768044-1-pasha.tatashin@soleen.com> <20251115233409.768044-21-pasha.tatashin@soleen.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251115233409.768044-21-pasha.tatashin@soleen.com> X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 8826640013 X-Stat-Signature: pxqo4wppqx11ztki9457kwsc68pjm961 X-Rspam-User: X-HE-Tag: 1763378056-514541 X-HE-Meta: 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 lNnzBcDF ULP64iFUHjQAxproCcL0cJiIC7CzG765bTKaS1GN1PdUX4zXu0SP20cepyzzScgtijejqqo5v3XHZtbFyMVqXePuLNNyntaSV/Rn/m4IBuY54x/Q7KFMoGxotSsr8mBmdo6Ym2xKRvkeHumQMgo0MCOadTzqcywkHCyrB7uqkc+cMmgr82J90iEOyFzkzJ4m2RDInSZgmjdPl5SPbXj+/1XidC1DiGnThZq9cosewo+l2TVQuuUjd/6uomkZ949ETFShpl1JHreVi/sHJHeroUeQSWpnyGt93KQ5BrlRXMdU/isADIXtz7ycq9HSypd2gedvRsEz7f9Gkjb/7RyAlV1BqB6XUY/vFDrMCO3gPqCAEsfQkTZHIpiPHDcyKWChOTsn1 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 Sat, Nov 15, 2025 at 06:34:06PM -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 > --- > include/linux/liveupdate/abi/luo.h | 5 + > kernel/liveupdate/luo_file.c | 2 + > kernel/liveupdate/luo_internal.h | 6 ++ > lib/Kconfig.debug | 23 +++++ > lib/tests/Makefile | 1 + > lib/tests/liveupdate.c | 143 +++++++++++++++++++++++++++++ > 6 files changed, 180 insertions(+) > create mode 100644 lib/tests/liveupdate.c > > diff --git a/include/linux/liveupdate/abi/luo.h b/include/linux/liveupdate/abi/luo.h > index 85596ce68c16..cdcace9b48f5 100644 > --- a/include/linux/liveupdate/abi/luo.h > +++ b/include/linux/liveupdate/abi/luo.h > @@ -230,4 +230,9 @@ struct luo_flb_ser { > u64 count; > } __packed; > > +/* Kernel Live Update Test ABI */ > +#ifdef CONFIG_LIVEUPDATE_TEST > +#define LIVEUPDATE_TEST_FLB_COMPATIBLE(i) "liveupdate-test-flb-v" #i > +#endif > + > #endif /* _LINUX_LIVEUPDATE_ABI_LUO_H */ > diff --git a/kernel/liveupdate/luo_file.c b/kernel/liveupdate/luo_file.c > index df337c9c4f21..9a531096bdb5 100644 > --- a/kernel/liveupdate/luo_file.c > +++ b/kernel/liveupdate/luo_file.c > @@ -834,6 +834,8 @@ 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); > + Why this cannot be called from the test? > return 0; > } > -- Sincerely yours, Mike.