From: Mike Rapoport <rppt@kernel.org>
To: Pasha Tatashin <pasha.tatashin@soleen.com>
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Subject: Re: [PATCH v6 08/20] liveupdate: luo_flb: Introduce File-Lifecycle-Bound global state
Date: Tue, 18 Nov 2025 13:28:00 +0200 [thread overview]
Message-ID: <aRxYQKrQeP8BzR_2@kernel.org> (raw)
In-Reply-To: <CA+CK2bBxVNRkJ-8Qv1AzfHEwpxnc4fSxdzKCL_7ku0TMd6Rjow@mail.gmail.com>
On Mon, Nov 17, 2025 at 10:54:29PM -0500, Pasha Tatashin wrote:
> >
> > The concept makes sense to me, but it's hard to review the implementation
> > without an actual user.
>
> There are three users: we will have HugeTLB support that is going to
> be posted as RFC in a few weeks. Also, in two weeks we are going to
> have an updated VFIO and IOMMU series posted both using FLBs. In the
> mean time, this series provides an FLB in-kernel test that verifies
> that multiple FLBs can be attached to File-Handlers, and the basic
> interfaces are working.
Which means that essentially there won't be a real kernel user for FLB for
a while.
We usually don't merge dead code because some future patchset depends on
it.
I think it should stay in mm-nonmm-unstable if Andrew does not mind keeping
it there until the first user is going to land and then FLB will move
upstream along with that user.
If keeping FLB in mm tree is an issue we can set up an integration tree for
LUO/KHO.
--
Sincerely yours,
Mike.
next prev parent reply other threads:[~2025-11-18 11:28 UTC|newest]
Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-15 23:33 [PATCH v6 00/20] Live Update Orchestrator Pasha Tatashin
2025-11-15 23:33 ` [PATCH v6 01/20] liveupdate: luo_core: luo_ioctl: " Pasha Tatashin
2025-11-17 2:54 ` Andrew Morton
2025-11-17 14:27 ` Pasha Tatashin
2025-11-18 15:45 ` Pratyush Yadav
2025-11-18 16:11 ` Pasha Tatashin
2025-11-15 23:33 ` [PATCH v6 02/20] liveupdate: luo_core: integrate with KHO Pasha Tatashin
2025-11-16 12:43 ` Mike Rapoport
2025-11-16 14:55 ` Pasha Tatashin
2025-11-16 19:16 ` Mike Rapoport
2025-11-17 18:29 ` Pasha Tatashin
2025-11-17 21:05 ` Mike Rapoport
2025-11-18 4:22 ` Pasha Tatashin
2025-11-18 11:21 ` Mike Rapoport
2025-11-18 14:03 ` Jason Gunthorpe
2025-11-18 15:06 ` Mike Rapoport
2025-11-18 15:18 ` Pasha Tatashin
2025-11-18 15:36 ` Jason Gunthorpe
2025-11-18 15:46 ` Pasha Tatashin
2025-11-18 16:15 ` Jason Gunthorpe
2025-11-18 22:07 ` Pasha Tatashin
2025-11-18 23:25 ` Jason Gunthorpe
2025-11-19 3:03 ` Pasha Tatashin
2025-11-15 23:33 ` [PATCH v6 03/20] kexec: call liveupdate_reboot() before kexec Pasha Tatashin
2025-11-16 12:44 ` Mike Rapoport
2025-11-15 23:33 ` [PATCH v6 04/20] liveupdate: luo_session: add sessions support Pasha Tatashin
2025-11-16 17:05 ` Mike Rapoport
2025-11-17 15:09 ` Pasha Tatashin
2025-11-17 21:11 ` Mike Rapoport
2025-11-18 4:28 ` Pasha Tatashin
2025-11-15 23:33 ` [PATCH v6 05/20] liveupdate: luo_ioctl: add user interface Pasha Tatashin
2025-11-16 17:15 ` Mike Rapoport
2025-11-17 14:22 ` Pasha Tatashin
2025-11-20 18:37 ` David Matlack
2025-11-20 19:22 ` Pasha Tatashin
2025-11-20 19:42 ` David Matlack
2025-11-15 23:33 ` [PATCH v6 06/20] liveupdate: luo_file: implement file systems callbacks Pasha Tatashin
2025-11-16 18:15 ` Mike Rapoport
2025-11-17 17:50 ` Pasha Tatashin
2025-11-20 17:20 ` Mike Rapoport
2025-11-18 17:38 ` David Matlack
2025-11-18 17:43 ` Pratyush Yadav
2025-11-18 17:58 ` Pasha Tatashin
2025-11-18 18:17 ` Pratyush Yadav
2025-11-18 19:09 ` Jason Gunthorpe
2025-11-18 19:31 ` Pasha Tatashin
2025-11-15 23:33 ` [PATCH v6 07/20] liveupdate: luo_session: Add ioctls for file preservation Pasha Tatashin
2025-11-16 18:25 ` Mike Rapoport
2025-11-18 2:58 ` Pasha Tatashin
2025-11-15 23:33 ` [PATCH v6 08/20] liveupdate: luo_flb: Introduce File-Lifecycle-Bound global state Pasha Tatashin
2025-11-17 9:39 ` Mike Rapoport
2025-11-18 3:54 ` Pasha Tatashin
2025-11-18 11:28 ` Mike Rapoport [this message]
2025-11-18 15:37 ` Pasha Tatashin
2025-11-20 18:50 ` Mike Rapoport
2025-11-20 19:10 ` Pasha Tatashin
2025-11-15 23:33 ` [PATCH v6 09/20] docs: add luo documentation Pasha Tatashin
2025-11-15 23:33 ` [PATCH v6 10/20] MAINTAINERS: add liveupdate entry Pasha Tatashin
2025-11-17 9:40 ` Mike Rapoport
2025-11-17 18:20 ` Pasha Tatashin
2025-11-15 23:33 ` [PATCH v6 11/20] mm: shmem: use SHMEM_F_* flags instead of VM_* flags Pasha Tatashin
2025-11-17 9:48 ` Mike Rapoport
2025-11-17 18:25 ` Pasha Tatashin
2025-11-15 23:33 ` [PATCH v6 12/20] mm: shmem: allow freezing inode mapping Pasha Tatashin
2025-11-17 10:08 ` Mike Rapoport
2025-11-18 4:13 ` Pasha Tatashin
2025-11-15 23:33 ` [PATCH v6 13/20] mm: shmem: export some functions to internal.h Pasha Tatashin
2025-11-17 10:14 ` Mike Rapoport
2025-11-17 18:43 ` Pasha Tatashin
2025-11-15 23:34 ` [PATCH v6 14/20] liveupdate: luo_file: add private argument to store runtime state Pasha Tatashin
2025-11-17 10:15 ` Mike Rapoport
2025-11-17 18:45 ` Pasha Tatashin
2025-11-15 23:34 ` [PATCH v6 15/20] mm: memfd_luo: allow preserving memfd Pasha Tatashin
2025-11-17 11:03 ` Mike Rapoport
2025-11-19 21:56 ` Pasha Tatashin
2025-11-20 15:34 ` Pratyush Yadav
2025-11-15 23:34 ` [PATCH v6 16/20] docs: add documentation for memfd preservation via LUO Pasha Tatashin
2025-11-15 23:34 ` [PATCH v6 17/20] selftests/liveupdate: Add userspace API selftests Pasha Tatashin
2025-11-17 19:38 ` David Matlack
2025-11-17 20:16 ` Pasha Tatashin
2025-11-15 23:34 ` [PATCH v6 18/20] selftests/liveupdate: Add kexec-based selftest for session lifecycle Pasha Tatashin
2025-11-16 18:53 ` Zhu Yanjun
2025-11-17 18:23 ` Pasha Tatashin
2025-11-17 19:27 ` David Matlack
2025-11-17 20:08 ` David Matlack
2025-11-17 21:06 ` David Matlack
2025-11-18 1:01 ` Pasha Tatashin
2025-11-18 0:06 ` David Matlack
2025-11-18 1:08 ` Pasha Tatashin
2025-11-19 21:20 ` David Matlack
2025-11-19 22:12 ` Pasha Tatashin
2025-11-15 23:34 ` [PATCH v6 19/20] selftests/liveupdate: Add kexec test for multiple and empty sessions Pasha Tatashin
2025-11-15 23:34 ` [PATCH v6 20/20] tests/liveupdate: Add in-kernel liveupdate test Pasha Tatashin
2025-11-17 11:13 ` Mike Rapoport
2025-11-17 19:00 ` Pasha Tatashin
2025-11-18 11:30 ` Mike Rapoport
2025-11-18 18:56 ` Pasha Tatashin
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