Commit 6b63f90fa2af for kernel

commit 6b63f90fa2afaa901e7edc9403014e46f0da1c69
Merge: 8f0b4cce4481 3309b63a2281
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Tue Dec 16 19:21:17 2025 +1200

    Merge tag 'cgroup-for-6.19-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

    Pull cgroup fix from Tejun Heo:

     - Fix a race condition in css_rstat_updated() where CMPXCHG without
       LOCK prefix could cause lnode corruption when the flusher runs
       concurrently on another CPU. The issue was introduced in 6.17 and
       causes memcg stats to become corrupted in production.

    * tag 'cgroup-for-6.19-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
      cgroup: rstat: use LOCK CMPXCHG in css_rstat_updated