[Devel] [PATCH VZ10 0/6] Add per-VE failcount support

Vladimir Riabchun vladimir.riabchun at virtuozzo.com
Tue Jun 30 20:13:26 MSK 2026


This patchset introduces per-VE failcount support.
We have several resources, that have per-VE limits,
the users might want to know what limit hits make
operations fail.

- Patch 1 is cosmetic, nothing special.
- Patch 2 is a bugfix, found when testing per-VE mount
  limits (but now comes before these changes).
- Patches 3 and 4 change mount number and limit processing,
  unifying it with other resources.
- Patch 5 greatly reduces the amount of copy-pasted code
  by introducing some useful macros.
- Patch 6 adds per-VE failcount file.

Side note: it may worth reworking AIO accounting as well,
now it is a bit ugly with a spinlock.

https://virtuozzo.atlassian.net/browse/VSTOR-135520

Vladimir Riabchun (6):
  ve/ve.{h,c}: Farewell to spaces as indents
  ve/namespace: Fix UAF in alloc_mnt_ns
  ve/fs: Rework per-ve mount count
  ve: Move from global VE mounts limit to per-VE limit.
  ve/ve.c: Generate VE resource accessors using macros
  ve: Introduce per-VE failcount

 fs/aio.c                                      |   1 +
 fs/namespace.c                                |  69 +++--
 include/linux/ve.h                            |  23 +-
 kernel/bpf/syscall.c                          |   1 +
 kernel/ve/ve.c                                | 276 +++++++++---------
 kernel/ve/veowner.c                           |  19 --
 net/core/dev.c                                |   2 +
 net/core/neighbour.c                          |   1 +
 net/core/net_namespace.c                      |   4 +-
 tools/testing/selftests/ve/ve_ns_owner_test.c |  33 ++-
 10 files changed, 220 insertions(+), 209 deletions(-)

-- 
2.47.1



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