From 48a1b2321d763b5edeaf20bd4576d8c4b5df772b Mon Sep 17 00:00:00 2001 From: Pasha Tatashin Date: Sat, 1 Nov 2025 10:23:23 -0400 Subject: liveupdate: kho: move to kernel/liveupdate Move KHO to kernel/liveupdate/ in preparation of placing all Live Update core kernel related files to the same place. [pasha.tatashin@soleen.com: disable the menu when DEFERRED_STRUCT_PAGE_INIT] Link: https://lkml.kernel.org/r/CA+CK2bAvh9Oa2SLfsbJ8zztpEjrgr_hr-uGgF1coy8yoibT39A@mail.gmail.com Link: https://lkml.kernel.org/r/20251101142325.1326536-8-pasha.tatashin@soleen.com Signed-off-by: Pasha Tatashin Reviewed-by: Jason Gunthorpe Reviewed-by: Mike Rapoport (Microsoft) Cc: Alexander Graf Cc: Changyuan Lyu Cc: Christian Brauner Cc: Jason Gunthorpe Cc: Jonathan Corbet Cc: Masahiro Yamada Cc: Miguel Ojeda Cc: Pratyush Yadav Cc: Randy Dunlap Cc: Simon Horman Cc: Tejun Heo Cc: Zhu Yanjun Signed-off-by: Andrew Morton --- Documentation/core-api/kho/concepts.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation/core-api') diff --git a/Documentation/core-api/kho/concepts.rst b/Documentation/core-api/kho/concepts.rst index 36d5c05cfb30..d626d1dbd678 100644 --- a/Documentation/core-api/kho/concepts.rst +++ b/Documentation/core-api/kho/concepts.rst @@ -70,5 +70,5 @@ in the FDT. That state is called the KHO finalization phase. Public API ========== -.. kernel-doc:: kernel/kexec_handover.c +.. kernel-doc:: kernel/liveupdate/kexec_handover.c :export: -- cgit v1.2.3 From 906a3306245525f408129153d5dcb7ae7e6ded44 Mon Sep 17 00:00:00 2001 From: Pasha Tatashin Date: Tue, 25 Nov 2025 11:58:38 -0500 Subject: docs: add luo documentation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add the documentation files for the Live Update Orchestrator Link: https://lkml.kernel.org/r/20251125165850.3389713-9-pasha.tatashin@soleen.com Signed-off-by: Pasha Tatashin Reviewed-by: Mike Rapoport (Microsoft) Reviewed-by: Pratyush Yadav Tested-by: David Matlack Cc: Aleksander Lobakin Cc: Alexander Graf Cc: Alice Ryhl Cc: Andriy Shevchenko Cc: anish kumar Cc: Anna Schumaker Cc: Bartosz Golaszewski Cc: Bjorn Helgaas Cc: Borislav Betkov Cc: Chanwoo Choi Cc: Chen Ridong Cc: Chris Li Cc: Christian Brauner Cc: Daniel Wagner Cc: Danilo Krummrich Cc: Dan Williams Cc: David Hildenbrand Cc: David Jeffery Cc: David Rientjes Cc: Greg Kroah-Hartman Cc: Guixin Liu Cc: "H. Peter Anvin" Cc: Hugh Dickins Cc: Ilpo Järvinen Cc: Ingo Molnar Cc: Ira Weiny Cc: Jann Horn Cc: Jason Gunthorpe Cc: Jens Axboe Cc: Joanthan Cameron Cc: Joel Granados Cc: Johannes Weiner Cc: Jonathan Corbet Cc: Lennart Poettering Cc: Leon Romanovsky Cc: Leon Romanovsky Cc: Lukas Wunner Cc: Marc Rutland Cc: Masahiro Yamada Cc: Matthew Maurer Cc: Miguel Ojeda Cc: Myugnjoo Ham Cc: Parav Pandit Cc: Pratyush Yadav Cc: Randy Dunlap Cc: Roman Gushchin Cc: Saeed Mahameed Cc: Samiullah Khawaja Cc: Song Liu Cc: Steven Rostedt Cc: Stuart Hayes Cc: Tejun Heo Cc: Thomas Gleinxer Cc: Thomas Weißschuh Cc: Vincent Guittot Cc: William Tu Cc: Yoann Congal Cc: Zhu Yanjun Cc: Zijun Hu Signed-off-by: Andrew Morton --- Documentation/core-api/index.rst | 1 + Documentation/core-api/liveupdate.rst | 54 +++++++++++++++++++++++++++++++++++ 2 files changed, 55 insertions(+) create mode 100644 Documentation/core-api/liveupdate.rst (limited to 'Documentation/core-api') diff --git a/Documentation/core-api/index.rst b/Documentation/core-api/index.rst index 6cbdcbfa79c3..5eb0fbbbc323 100644 --- a/Documentation/core-api/index.rst +++ b/Documentation/core-api/index.rst @@ -138,6 +138,7 @@ Documents that don't fit elsewhere or which have yet to be categorized. :maxdepth: 1 librs + liveupdate netlink .. only:: subproject and html diff --git a/Documentation/core-api/liveupdate.rst b/Documentation/core-api/liveupdate.rst new file mode 100644 index 000000000000..cca1993008d8 --- /dev/null +++ b/Documentation/core-api/liveupdate.rst @@ -0,0 +1,54 @@ +.. SPDX-License-Identifier: GPL-2.0 + +======================== +Live Update Orchestrator +======================== +:Author: Pasha Tatashin + +.. kernel-doc:: kernel/liveupdate/luo_core.c + :doc: Live Update Orchestrator (LUO) + +LUO Sessions +============ +.. kernel-doc:: kernel/liveupdate/luo_session.c + :doc: LUO Sessions + +LUO Preserving File Descriptors +=============================== +.. kernel-doc:: kernel/liveupdate/luo_file.c + :doc: LUO File Descriptors + +Live Update Orchestrator ABI +============================ +.. kernel-doc:: include/linux/kho/abi/luo.h + :doc: Live Update Orchestrator ABI + +Public API +========== +.. kernel-doc:: include/linux/liveupdate.h + +.. kernel-doc:: include/linux/kho/abi/luo.h + :functions: + +.. kernel-doc:: kernel/liveupdate/luo_core.c + :export: + +.. kernel-doc:: kernel/liveupdate/luo_file.c + :export: + +Internal API +============ +.. kernel-doc:: kernel/liveupdate/luo_core.c + :internal: + +.. kernel-doc:: kernel/liveupdate/luo_session.c + :internal: + +.. kernel-doc:: kernel/liveupdate/luo_file.c + :internal: + +See Also +======== + +- :doc:`Live Update uAPI ` +- :doc:`/core-api/kho/concepts` -- cgit v1.2.3 From 15fc11bb2cb649f2207bbb7140d5430d3937a8d5 Mon Sep 17 00:00:00 2001 From: Pratyush Yadav Date: Tue, 25 Nov 2025 11:58:45 -0500 Subject: docs: add documentation for memfd preservation via LUO MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add the documentation under the "Preserving file descriptors" section of LUO's documentation. Link: https://lkml.kernel.org/r/20251125165850.3389713-16-pasha.tatashin@soleen.com Signed-off-by: Pratyush Yadav Co-developed-by: Pasha Tatashin Signed-off-by: Pasha Tatashin Reviewed-by: Mike Rapoport (Microsoft) Tested-by: David Matlack Cc: Aleksander Lobakin Cc: Alexander Graf Cc: Alice Ryhl Cc: Andriy Shevchenko Cc: anish kumar Cc: Anna Schumaker Cc: Bartosz Golaszewski Cc: Bjorn Helgaas Cc: Borislav Betkov Cc: Chanwoo Choi Cc: Chen Ridong Cc: Chris Li Cc: Christian Brauner Cc: Daniel Wagner Cc: Danilo Krummrich Cc: Dan Williams Cc: David Hildenbrand Cc: David Jeffery Cc: David Rientjes Cc: Greg Kroah-Hartman Cc: Guixin Liu Cc: "H. Peter Anvin" Cc: Hugh Dickins Cc: Ilpo Järvinen Cc: Ingo Molnar Cc: Ira Weiny Cc: Jann Horn Cc: Jason Gunthorpe Cc: Jens Axboe Cc: Joanthan Cameron Cc: Joel Granados Cc: Johannes Weiner Cc: Jonathan Corbet Cc: Lennart Poettering Cc: Leon Romanovsky Cc: Leon Romanovsky Cc: Lukas Wunner Cc: Marc Rutland Cc: Masahiro Yamada Cc: Matthew Maurer Cc: Miguel Ojeda Cc: Myugnjoo Ham Cc: Parav Pandit Cc: Pratyush Yadav Cc: Randy Dunlap Cc: Roman Gushchin Cc: Saeed Mahameed Cc: Samiullah Khawaja Cc: Song Liu Cc: Steven Rostedt Cc: Stuart Hayes Cc: Tejun Heo Cc: Thomas Gleinxer Cc: Thomas Weißschuh Cc: Vincent Guittot Cc: William Tu Cc: Yoann Congal Cc: Zhu Yanjun Cc: Zijun Hu Signed-off-by: Andrew Morton --- Documentation/core-api/liveupdate.rst | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'Documentation/core-api') diff --git a/Documentation/core-api/liveupdate.rst b/Documentation/core-api/liveupdate.rst index cca1993008d8..7960eb15a81f 100644 --- a/Documentation/core-api/liveupdate.rst +++ b/Documentation/core-api/liveupdate.rst @@ -23,6 +23,13 @@ Live Update Orchestrator ABI .. kernel-doc:: include/linux/kho/abi/luo.h :doc: Live Update Orchestrator ABI +The following types of file descriptors can be preserved + +.. toctree:: + :maxdepth: 1 + + ../mm/memfd_preservation + Public API ========== .. kernel-doc:: include/linux/liveupdate.h -- cgit v1.2.3