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b=iCT7BbADvyqY/N7ktQa9CCgQuLuxBi4bueukJYyNbHF0PfF8EjQwNrugrMCvzsqX9 9q3Bkh/2GSly5eAntX/fzTq/U3DYapYK0Af0v7fUEHdvK69OpMZqTpu3fIXD8Vtpsv 3kK64hONFu2Wyfiyk9SPhNn6LZCQ9nVjSQN1bCuf+1u908hDrJF3Cde/BuZPgKlfU2 B0wruFmyHvuzw8sv6UNygpdeq5JxWI0RLZusmFxpbMV/X8dKD55Gq+5l/2tZWNdQ09 CzI+TVBnBl8eH6W3yE0yHeox9lngm+77wRXMczG9PzhvJ3IGej4bCsIKsNxalLU60s rocow+5OAKF5Q== From: Pratyush Yadav To: Pasha Tatashin Cc: linux-kselftest@vger.kernel.org, rppt@kernel.org, shuah@kernel.org, akpm@linux-foundation.org, linux-mm@kvack.org, skhan@linuxfoundation.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, corbet@lwn.net, dmatlack@google.com, kexec@lists.infradead.org, pratyush@kernel.org, skhawaja@google.com, graf@amazon.com Subject: Re: [PATCH v4 03/13] liveupdate: centralize state management into struct luo_ser In-Reply-To: <20260530221938.115978-4-pasha.tatashin@soleen.com> (Pasha Tatashin's message of "Sat, 30 May 2026 22:19:28 +0000") References: <20260530221938.115978-1-pasha.tatashin@soleen.com> <20260530221938.115978-4-pasha.tatashin@soleen.com> Date: Mon, 01 Jun 2026 14:19:21 +0200 Message-ID: <2vxzzf1efo6u.fsf@kernel.org> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Rspamd-Server: rspam12 X-Stat-Signature: gamhh6wtd3n13x3eich1yqtkc43c5u3j X-Rspam-User: X-Rspamd-Queue-Id: 420304000D X-HE-Tag: 1780316366-103266 X-HE-Meta: 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 KhILfmvr IgsBNDOhNSkfjCWBezWzhpaPrK3VxSLvLapvWxQEfYgyM/XXXjeannleQzrEY+n46q2A+N4By5N59A6fqK9K/9U2/awpiG3xqOEc2m5+XFhO5nj3Ba8tIt1Yw+Qv7oIcBTSknD9y5YlQlX79Rv5f0jkhNZWWbneKH84yL2mrGdG6pfuFgcmAZM0meiEp4smkEkJZ7xCKcqE3zLr29MULjhUP7HdEfDhNCEg6tAm4TFPUzWm/fcV9QJ2zq/uaf09umy/w/sR4urd/Y30ATXoIgubOouKK5ka/oqF6EJnfKmhm8+FU8GEOqwA9HoeL7fD1dFlcwR49G9i3pwDRypA2UPyTrWhpPAa+FP9rJ/g6rykGjtVKW5uhzzor1vpfnbbcGsx39t7AbMGToJ6w77weusIrnvToYabDdIDVj Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sat, May 30 2026, Pasha Tatashin wrote: > Transition the LUO to ABI v2, which centralizes state management into a > single struct luo_ser header. > > Previously, LUO state was spread across multiple FDT properties and > subnodes. ABI v2 simplifies this by placing all core state, including > the liveupdate number and physical addresses for sessions and FLB > headers into a centralized struct luo_ser. > > Note that this change introduces a semantic difference: the sessions > and FLB serialization formats are no longer completely independent of > the core LUO. Their metadata (such as physical addresses for sessions > and FLB headers) is now coupled to and managed via the centralized > struct luo_ser. > > Signed-off-by: Pasha Tatashin Reviewed-by: Pratyush Yadav (Google) [...] -- Regards, Pratyush Yadav