Re: [PATCH v2 6/7] mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()

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To: Uladzislau Rezki <urezki@xxxxxxxxx>
Subject: Re: [PATCH v2 6/7] mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()
From: Vlastimil Babka <vbabka@xxxxxxx>
Date: Wed, 26 Feb 2025 15:36:39 +0100
Cc: Keith Busch <keith.busch@xxxxxxxxx>, "Paul E. McKenney" <paulmck@xxxxxxxxxx>, Joel Fernandes <joel@xxxxxxxxxxxxxxxxx>, Josh Triplett <josh@xxxxxxxxxxxxxxxx>, Boqun Feng <boqun.feng@xxxxxxxxx>, Christoph Lameter <cl@xxxxxxxxx>, David Rientjes <rientjes@xxxxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>, Lai Jiangshan <jiangshanlai@xxxxxxxxx>, Zqiang <qiang.zhang1211@xxxxxxxxx>, Julia Lawall <Julia.Lawall@xxxxxxxx>, Jakub Kicinski <kuba@xxxxxxxxxx>, "Jason A. Donenfeld" <Jason@xxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Roman Gushchin <roman.gushchin@xxxxxxxxx>, Hyeonggon Yoo <42.hyeyoo@xxxxxxxxx>, linux-mm@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, rcu@xxxxxxxxxxxxxxx, Alexander Potapenko <glider@xxxxxxxxxx>, Marco Elver <elver@xxxxxxxxxx>, Dmitry Vyukov <dvyukov@xxxxxxxxxx>, kasan-dev@xxxxxxxxxxxxxxxx, Jann Horn <jannh@xxxxxxxxxx>, Mateusz Guzik <mjguzik@xxxxxxxxx>, linux-nvme@xxxxxxxxxxxxxxxxxxx, leitao@xxxxxxxxxx
In-reply-to: <Z78lpfLFvNxjoTNf@pc636>
References: <20240807-b4-slab-kfree_rcu-destroy-v2-6-ea79102f428c@suse.cz> <Z7iqJtCjHKfo8Kho@kbusch-mbp> <2811463a-751f-4443-9125-02628dc315d9@suse.cz> <Z7xbrnP8kTQKYO6T@pc636> <ef97428b-f6e7-481e-b47e-375cc76653ad@suse.cz> <Z73p2lRwKagaoUnP@kbusch-mbp> <CAOSXXT6-oWjKPV1hzXa5Ra4SPQg0L_FvxCPM0Sh0Yk6X90h0Sw@mail.gmail.com> <Z74Av6tlSOqcfb-q@pc636> <Z74KHyGGMzkhx5f-@pc636> <8d7aabb2-2836-4c09-9fc7-8bde271e7f23@suse.cz> <Z78lpfLFvNxjoTNf@pc636>
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On 2/26/25 3:31 PM, Uladzislau Rezki wrote:
> On Wed, Feb 26, 2025 at 11:59:53AM +0100, Vlastimil Babka wrote:
>> On 2/25/25 7:21 PM, Uladzislau Rezki wrote:
>>>>
>>> WQ_MEM_RECLAIM-patch fixes this for me:
>>
>> Sounds good, can you send a formal patch then?
>>
> Do you mean both? Test case and fix? I can :)

Sure, but only the fix is for stable. Thanks!

Follow-Ups:
- Re: [PATCH v2 6/7] mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()
  - From: Uladzislau Rezki

References:
- [PATCH v2 6/7] mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()
  - From: Vlastimil Babka
- Re: [PATCH v2 6/7] mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()
  - From: Keith Busch
- Re: [PATCH v2 6/7] mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()
  - From: Vlastimil Babka
- Re: [PATCH v2 6/7] mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()
  - From: Uladzislau Rezki
- Re: [PATCH v2 6/7] mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()
  - From: Vlastimil Babka
- Re: [PATCH v2 6/7] mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()
  - From: Keith Busch
- Re: [PATCH v2 6/7] mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()
  - From: Keith Busch
- Re: [PATCH v2 6/7] mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()
  - From: Uladzislau Rezki
- Re: [PATCH v2 6/7] mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()
  - From: Uladzislau Rezki
- Re: [PATCH v2 6/7] mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()
  - From: Vlastimil Babka
- Re: [PATCH v2 6/7] mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()
  - From: Uladzislau Rezki

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