linux-kernel - [GIT PULL] cgroup: Fixes for v6.12-rc5

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Message-ID: <ZyGCb34Fcj3yoVL2@slm.duckdns.org>
Date: Tue, 29 Oct 2024 14:48:47 -1000
From: Tejun Heo <tj@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, cgroups@...r.kernel.org
Subject: [GIT PULL] cgroup: Fixes for v6.12-rc5

The following changes since commit 9852d85ec9d492ebef56dc5f229416c925758edc:

  Linux 6.12-rc1 (2024-09-29 15:06:19 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git/ tags/cgroup-for-6.12-rc5-fixes

for you to fetch changes up to 3cc4e13bb1617f6a13e5e6882465984148743cf4:

  cgroup: Fix potential overflow issue when checking max_depth (2024-10-14 13:39:25 -1000)

----------------------------------------------------------------
cgroup: Fixes for v6.12-rc5

- cgroup_bpf_release_fn() could saturate system_wq with
  cgrp->bpf.release_work which can then form a circular dependency leading
  to deadlocks. Fix by using a dedicated workqueue. The system_wq's max
  concurrency limit is being increased separately.

- Fix theoretical off-by-one bug when enforcing max cgroup hierarchy depth.

----------------------------------------------------------------
Chen Ridong (1):
      cgroup/bpf: use a dedicated workqueue for cgroup bpf destruction

Xiu Jianfeng (1):
      cgroup: Fix potential overflow issue when checking max_depth

 kernel/bpf/cgroup.c    | 19 ++++++++++++++++++-
 kernel/cgroup/cgroup.c |  4 ++--
 2 files changed, 20 insertions(+), 3 deletions(-)

--
tejun