# Re: \[PATCH 13/15\] kernel: convert numa\_group.refcount from atomic\_t to refcount\_t

- From: Peter Zijlstra \<peterz@infradead.org\>
- Date: 2017-07-07 09:29:54 
- List: cgroups
- Page: https://ratatoskr.run/cgroups/2017/07/124418
- Thread: https://ratatoskr.run/cgroups/2017/07/124139/t.md

```text
On Fri, Jul 07, 2017 at 12:04:27PM +0300, Elena Reshetova wrote:
> refcount_t type and corresponding API should be
> used instead of atomic_t when the variable is used as
> a reference counter. This allows to avoid accidental
> refcounter overflows that might lead to use-after-free
> situations.
> 
> Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
> Signed-off-by: Hans Liljestrand <redacted>
> Signed-off-by: Kees Cook <redacted>
> Signed-off-by: David Windsor <redacted>

Invalid SoB..

> Subject: [PATCH 13/15] kernel: convert numa_group.refcount from atomic_t to refcount_t

> ---
>  kernel/sched/fair.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)

Invalid Subject prefix too, scheduler patches get to have "sched:"
```