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Wed, 27 May 2026 08:37:38 -0700 (PDT) Received: from localhost ([2a01:4b00:d036:ae00:1c16:588e:9e26:6aeb]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-4904561a33dsm370360215e9.11.2026.05.27.08.37.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 May 2026 08:37:37 -0700 (PDT) From: luca.boccassi@gmail.com To: kexec@lists.infradead.org Cc: linux-mm@kvack.org, rppt@kernel.org, pasha.tatashin@soleen.com, pratyush@kernel.org, linux-kernel@vger.kernel.org, Luca Boccassi Subject: [PATCH] liveupdate: document current compatibility status Date: Wed, 27 May 2026 16:37:12 +0100 Message-ID: <20260527153725.1770394-1-luca.boccassi@gmail.com> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Luca Boccassi We currently do not guarantee compatibility due to ongoing development, so mention this explicitly in the user-facing documentation. Signed-off-by: Luca Boccassi Acked-by: Pratyush Yadav --- Documentation/userspace-api/liveupdate.rst | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/userspace-api/liveupdate.rst b/Documentation/use= rspace-api/liveupdate.rst index f6efc32fb40b..cdd74627ab75 100644 --- a/Documentation/userspace-api/liveupdate.rst +++ b/Documentation/userspace-api/liveupdate.rst @@ -14,6 +14,14 @@ ioctl uAPI =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D .. kernel-doc:: include/uapi/linux/liveupdate.h =20 +Note on Compatibility +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D + +Note that the Live Update feature is still under development and subject to +change, so compatibility is not guaranteed when kexec rebooting between +different kernel versions. This is expected to change and stabilize in a f= uture +version. + Userspace Integration =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =20 --=20 2.47.3