[Devel] [VZ10 v2 00/21] Fix !CONFIG_VE build

[Vasileios Almpanis]

Reviewed-by: Vasileios Almpanis <vasileios.almpanis at virtuozzo.com>

On 5/15/26 10:01 PM, Vladimir Riabchun wrote:
> There is a lot of CONFIG_VE logic, that is not covered by CONFIG_VE.
> This is and 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.
>
> v2:
>    - Rebase on top of branch-rh10-6.12.0-55.52.1.5.x.vz10-ovz.
>    - Rework "ve/tty: Use vtty_alloc_tty_struct only when CONFIG_VE"
>      to keep original behavior when !CONFIG_VE
>    - Fix various typos.
>
> Vladimir Riabchun (21):
>    ve/net: Have net->owner_ve when !CONFIG_VE
>    ve/vma: Fix NULL dereference when accessing ve->vdso_image_*
>    ve: Fix obvious null dereferences when !CONFIG_VE
>    ve: Fix ve.h when !CONFIG_VE
>    x86/cpuid_fault: Make it compile with !CONFIG_VE
>    ve/sched.h: Fix errors and warnings when !CONFIG_VE
>    ve/module: Fix "no return statement" error
>    ve: Fix usages of ve0
>    ve/cgroup: Fix errors when !CONFIG_VE
>    ve/vzstat.h: Move KSTAT_ALLOC_MAX_LAT_PERIOD outside CONFIG_VE
>    ve/aio: Hide aio pid_entry under CONFIG_VE
>    ve/kernfs: Fix when !CONFIG_VE
>    ve: Fix compiler warning about CONFIG_VE usage
>    ve/kthread: Remove ifdef CONFIG_VE
>    ve/fs: Define ve_fsync_behavior only when CONFIG_VE
>    ve/tty: Use vtty_alloc_tty_struct only when CONFIG_VE
>    ve/connector: Hide cn_ss_hook under CONFIG_VE
>    ve/fsopen: fscontext_finalize_lazy_opts has no return statement when
>      !CONFIG_VE
>    ve/binfmt_elf: Include ve.h only when CONFIG_VE
>    vmalloc: Rename module parameter variable
>    ve/sunrpc: Use kthread_create_on_node when !CONFIG_VE
>
>   arch/x86/entry/vdso/vma.c     |  6 +--
>   arch/x86/kernel/cpuid_fault.c | 63 +++++++++++++++++-----------
>   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                      |  7 ++++
>   fs/binfmt_elf.c               |  4 ++
>   fs/coredump.c                 |  2 +
>   fs/file.c                     |  1 +
>   fs/fsopen.c                   |  3 +-
>   fs/kernfs/dir.c               |  3 +-
>   fs/kernfs/kernfs-internal.h   |  2 -
>   fs/kernfs/kernfs-ve.h         | 11 ++---
>   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/cgroup.h        |  2 +-
>   include/linux/sched.h         | 32 ++++++++++-----
>   include/linux/sysctl.h        |  3 +-
>   include/linux/umh.h           |  4 +-
>   include/linux/ve.h            | 77 ++++++++++++++++++++++++++++++++++-
>   include/linux/vzstat.h        |  4 +-
>   include/net/net_namespace.h   |  2 -
>   kernel/capability.c           |  2 +-
>   kernel/cgroup/cgroup-v1.c     |  8 ++--
>   kernel/cgroup/cgroup.c        | 15 +++++--
>   kernel/kthread.c              |  4 +-
>   kernel/module/sysfs.c         |  5 ++-
>   kernel/sysctl.c               |  4 ++
>   lib/test_vmalloc.c            | 12 +++---
>   net/core/net_namespace.c      |  4 ++
>   net/ipv6/ip6_tunnel.c         |  2 +-
>   net/sunrpc/rpc_pipe.c         |  2 +-
>   net/sunrpc/svc.c              |  6 +++
>   39 files changed, 241 insertions(+), 81 deletions(-)
>
-- 
Best regards, Vasileios Almpanis
Software Developer, Virtuozzo.