Apart from from fixup for put_userns (patch 41) that is duplicate LGTM.

Reviewed-by: Vasileios Almpanis <[email protected]>

On 6/2/26 11:10 PM, Vladimir Riabchun wrote:
There is a lot of CONFIG_VE logic, that is not covered by CONFIG_VE.
This is an attempt to make the kernel compile with minimal
useless code changes - thus it is not expected to boot now.

Some ve_struct fields were made unconditional, because the other
option is changing all the code that touches this field.

ve0 is absent and all ve objects are NULLs with !CONFIG_VE.
This is intentional - while it makes kernel less bootable (it will
probably never be), this is a movement away from having ve0 and
all the CONFIG_VE logic when this config is disabled.

Most of the patches are fixups except the last 3 - changes in
headers happened next to each other and required some code
reordering. This may cause pain with merge conflicts while
reabasing and it will add even more fixups.
One change is not related to our code, so nothing to fix up.

v4:
  - Drop fixup! ve/fs/files: Shrink big fdtable on close in is_pseudosuper mode.
  - Fix various problems with style and code order.
  - Added a fixup with missing inline (patch 13).
  - Added two more fixups (patches 40 & 41) for newer commits.
v3: in vzlin-dev list
v2: https://lists.openvz.org/pipermail/devel/2026-May/083626.html
v1: https://lists.openvz.org/pipermail/devel/2026-May/083544.html

Vladimir Riabchun (44):
   fixup! ve: Link net and ve_struct
   fixup! ve/net: thread owning ve through copy_net_ns
   fixup! ve, x86_64: add per-ve vdso mapping.
   fixup! ia32: add 32-bit vdso virtualization.
   fixup! ve/fs/nfs: NFS containerization
   fixup! ve: Rename ve_ns to ve_nsproxy
   fixup! ve/fs/nfsd: NFSd containerization
   fixup! fs: allow init Container user_ns to mount filesystems with
     FS_VE_MOUNT
   fixup! ve/cgroup: Allow to write to several safe cgroup files from CT
   fixup! ve/sunrpc: Prohibit mounting rpc_pipefs in CT without nfsd
     feature
   fixup! arch/x86: introduce cpuid override
   fixup! ve/proc/stat: Wire virtualized /proc/stat handler
   fixup! sched: show CPU stats for a cgroup in cpu.proc.stat file
   fixup! ve/module: export sysfs dentries in containers
   fixup! ve/fs/aio: aio_nr & aio_max_nr variables virtualization
   fixup! ve/coredump: virtualize kernel.core_pattern sysctl
   fixup! ve/vfs: introduce "fs.odirect_enable" sysctl and disable it by
     default
   fixup! ve/sysctl: virtualize printk, hotplug and randomize_va_space
     sysctls
   fixup! ve/sysctl: implement virtualized methods
   fixup! ve/cgroup: Set release_agent_path for root cgroups separately
   fixup! ve/cgroup: Move release_agent from system_wq to per-ve
     workqueues
   fixup! ve/umh: introduce per-container user mode helper macroses and
     functions
   fixup! ve/cgroup: hide non-virtualized cgroups in container
   fixup! ve/cgroup: Set release_agent_path for root cgroups separately
   fixup! ve/cgroup: Add ve_owner field to cgroup
   fixup! cgroup-v2: Add a new API to hide cgroup files per controller
   fixup! /proc/<pid>/vz_latency: Show maximal allocation latency in the
     last 2min.
   fixup! ve/aio: Add a handle to checkpoint/restore AIO context
   fixup! ve/sysfs: relax sanity check for ns equality in
     kernfs_find_ns()
   fixup! ve/kernfs: implement ve-based permissions
   fixup! ve/cred: add ve_capable to check capabilities relative to the
     current VE (v2)
   fixup! net/ip6ip: Consider VE_FEATURE_IPIP on new net creation
   fixup! ve/kthreadd: add per-ve kthreads creation interface
   fixup! ve/fs: support per-CT disable of filesystem sync operations
   fixup! vtty: fix slave peer lockdep annotation
   fixup! connector: add VE SS hook
   fixup! fsopen/devmnt/fs_context: Add vz devmnt feature support to
     fs_context
   fixup! ve: Implement per ve randomize_va_space
   fixup! ve/sunrpc/nfsd: containerize kthreads
   fixup! ve: Add ve cgroup and ve_hook subsys
   fixup! ve/net: thread owning ve through copy_net_ns
   ve: Fix ve.h when !CONFIG_VE
   ve/sched.h: Reorder ve-related functions and ifdef guards
   vmalloc: Rename module parameter variable

  arch/x86/entry/vdso/vma.c     |  6 +--
  arch/x86/kernel/cpuid_fault.c | 64 ++++++++++++++++++-----------
  arch/x86/kernel/process_64.c  |  4 +-
  drivers/connector/connector.c |  5 +++
  drivers/tty/pty.c             |  3 ++
  drivers/tty/tty_io.c          |  2 +-
  fs/aio.c                      |  8 ++++
  fs/binfmt_elf.c               |  2 +
  fs/coredump.c                 |  2 +
  fs/fsopen.c                   |  3 +-
  fs/kernfs/dir.c               |  3 +-
  fs/kernfs/kernfs-internal.h   |  3 +-
  fs/kernfs/kernfs-ve.h         | 10 ++---
  fs/nfs/fs_context.c           |  2 +-
  fs/nfsd/nfs4recover.c         |  4 ++
  fs/nfsd/nfsctl.c              |  2 +-
  fs/proc/base.c                |  2 +-
  fs/super.c                    |  4 ++
  fs/sync.c                     |  2 +
  fs/sysctls.c                  |  2 +
  include/linux/sched.h         | 32 ++++++++++-----
  include/linux/sysctl.h        |  3 +-
  include/linux/umh.h           |  4 +-
  include/linux/ve.h            | 77 ++++++++++++++++++++++++++++++++++-
  include/linux/ve_proto.h      |  2 +-
  include/linux/vzstat.h        |  4 +-
  include/net/net_namespace.h   |  2 -
  kernel/capability.c           |  2 +-
  kernel/cgroup/cgroup-v1.c     | 10 +++--
  kernel/cgroup/cgroup.c        | 12 ++++--
  kernel/kthread.c              |  3 +-
  kernel/module/sysfs.c         |  5 ++-
  kernel/sysctl.c               |  4 ++
  lib/test_vmalloc.c            | 12 +++---
  net/core/net_namespace.c      |  5 ++-
  net/ipv6/ip6_tunnel.c         |  2 +-
  net/sunrpc/rpc_pipe.c         |  2 +-
  net/sunrpc/svc.c              |  6 +++
  38 files changed, 238 insertions(+), 82 deletions(-)

--
Best regards, Vasileios Almpanis
Software Developer, Virtuozzo.

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