From: Hao Li <hao.li@linux.dev>
To: "Vlastimil Babka (SUSE)" <vbabka@kernel.org>
Cc: "Harry Yoo" <harry@kernel.org>,
"Alexei Starovoitov" <ast@kernel.org>,
"Alexander Potapenko" <glider@google.com>,
"Marco Elver" <elver@google.com>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Christian König" <christian.koenig@amd.com>,
"Catalin Marinas" <catalin.marinas@arm.com>,
"Ingo Molnar" <mingo@redhat.com>,
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"Juri Lelli" <juri.lelli@redhat.com>,
"Vincent Guittot" <vincent.guittot@linaro.org>,
"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
"Clark Williams" <clrkwllms@kernel.org>,
"Steven Rostedt" <rostedt@goodmis.org>,
"Andrew Morton" <akpm@linux-foundation.org>,
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"David Rientjes" <rientjes@google.com>,
"Roman Gushchin" <roman.gushchin@linux.dev>,
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"Dietmar Eggemann" <dietmar.eggemann@arm.com>,
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"K Prateek Nayak" <kprateek.nayak@amd.com>,
linux-rt-devel@lists.linux.dev
Subject: Re: [PATCH RFC 1/5] mm/slab: cleanup deferred free handling
Date: Tue, 18 Aug 2026 11:15:12 +0800 [thread overview]
Message-ID: <aoPN2evd_u09IxfR@fedora> (raw)
In-Reply-To: <20260807-kfree_nolock_kmalloc-v1-1-ba993cbf7a60@kernel.org>
On Fri, Aug 07, 2026 at 03:50:27PM +0200, Vlastimil Babka (SUSE) wrote:
> In deferred_percpu_work_fn() we have a bunch of single-use local
> variables for the various llists. Remove them and access the lists
> directly.
>
> In defer_free() make it more obvious and documented what we are doing.
> Also restrict guard(preempt) to only the necessary part.
>
> Signed-off-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
> ---
> mm/slub.c | 24 +++++++++++++-----------
> 1 file changed, 13 insertions(+), 11 deletions(-)
Looks much cleaner now.
Reviewed-by: Hao Li <hao.li@linux.dev>
--
Thanks,
Hao
next prev parent reply other threads:[~2026-08-18 3:15 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-07 13:50 [PATCH RFC 0/5] allow kfree_nolock() handle kmalloc() objects Vlastimil Babka (SUSE)
2026-08-07 13:50 ` [PATCH RFC 1/5] mm/slab: cleanup deferred free handling Vlastimil Babka (SUSE)
2026-08-18 3:15 ` Hao Li [this message]
2026-08-07 13:50 ` [PATCH RFC 2/5] mm/slab, kfence: support kfence objects in kfree_nolock() Vlastimil Babka (SUSE)
2026-08-07 14:16 ` sashiko-bot
2026-08-18 9:49 ` Hao Li
2026-08-07 13:50 ` [PATCH RFC 3/5] mm/slab, kmemleak: handle kmemleak freeing " Vlastimil Babka (SUSE)
2026-08-13 17:47 ` Catalin Marinas
2026-08-18 11:40 ` Hao Li
2026-08-07 13:50 ` [PATCH RFC 4/5] mm/slab: handle large_kmalloc objects " Vlastimil Babka (SUSE)
2026-08-07 15:06 ` sashiko-bot
2026-08-07 13:50 ` [PATCH RFC 5/5] sched: use kfree_nolock() instead of kfree_rcu() Vlastimil Babka (SUSE)
2026-08-07 15:22 ` sashiko-bot
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