From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Sean Christopherson <seanjc@google.com>,
David Woodhouse <dwmw2@infradead.org>,
Jason Gunthorpe <jgg@ziepe.ca>, Michal Hocko <mhocko@suse.com>,
Steven Rostedt <rostedt@goodmis.org>,
Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@kernel.org>,
Lorenzo Stoakes <ljs@kernel.org>,
"Liam R. Howlett" <liam@infradead.org>,
Vlastimil Babka <vbabka@kernel.org>,
Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Clark Williams <clrkwllms@kernel.org>,
Simona Vetter <simona.vetter@ffwll.ch>,
Jerome Glisse <jglisse@redhat.com>,
Christian Koenig <christian.koenig@amd.com>,
Paolo Bonzini <pbonzini@redhat.com>,
linux-mm@kvack.org, kvm@vger.kernel.org,
linux-rt-devel@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm/mmu_notifier: Remove non_block_start/end() from notifier invocation
Date: Wed, 26 Aug 2026 09:32:33 +0200 [thread overview]
Message-ID: <20260826073233.T-KtFXmj@linutronix.de> (raw)
In-Reply-To: <d4f8ff92-08ac-4253-b647-f9e95c66698d@paulmck-laptop>
On 2026-08-25 13:51:14 [-0700], Paul E. McKenney wrote:
> Very good, preemption disabling it is! It is quite possible that the
> PREEMPT_RT guys will need something else, but one thing at a time.
This reminds me of classic RCU ;) It might work in this use case but I
am afraid that other users might come along where it actually hurts.
With PREEMPT LAZY the preemption within the read-section should
hopefully be the exception.
…
> Thanx, Paul
Sebastian
next prev parent reply other threads:[~2026-08-26 7:32 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-11 8:58 [PATCH] mm/mmu_notifier: Remove non_block_start/end() from notifier invocation David Woodhouse
2026-08-11 13:55 ` Jason Gunthorpe
[not found] ` <1d669aca4ffee797b9c29215382444a5b23624b3.camel@infradead.org>
2026-08-11 14:27 ` Jason Gunthorpe
2026-08-11 14:33 ` David Woodhouse
2026-08-11 14:42 ` Steven Rostedt
2026-08-11 15:24 ` David Woodhouse
2026-08-11 15:30 ` Jason Gunthorpe
2026-08-12 8:14 ` Michal Hocko
2026-08-12 8:21 ` David Woodhouse
2026-08-12 12:27 ` Jason Gunthorpe
2026-08-12 13:46 ` David Woodhouse
2026-08-12 13:49 ` Jason Gunthorpe
2026-08-12 14:05 ` David Woodhouse
2026-08-12 14:26 ` Jason Gunthorpe
2026-08-12 14:38 ` David Woodhouse
2026-08-13 10:05 ` David Woodhouse
2026-08-13 13:59 ` Sean Christopherson
2026-08-13 14:40 ` Jason Gunthorpe
2026-08-12 14:34 ` David Woodhouse
2026-08-12 15:03 ` David Woodhouse
2026-08-12 15:49 ` David Woodhouse
2026-08-12 16:20 ` Sean Christopherson
2026-08-12 17:17 ` David Woodhouse
2026-08-12 21:38 ` Paul E. McKenney
2026-08-13 7:54 ` David Woodhouse
2026-08-18 18:18 ` Paul E. McKenney
2026-08-18 18:28 ` David Woodhouse
2026-08-20 14:43 ` David Woodhouse
2026-08-21 17:38 ` Paul E. McKenney
2026-08-25 12:15 ` David Woodhouse
2026-08-25 16:47 ` Paul E. McKenney
2026-08-25 17:05 ` David Woodhouse
2026-08-25 17:19 ` Paul E. McKenney
2026-08-25 17:48 ` David Woodhouse
2026-08-25 18:16 ` Paul E. McKenney
2026-08-25 19:58 ` Sean Christopherson
2026-08-25 20:51 ` Paul E. McKenney
2026-08-26 7:32 ` Sebastian Andrzej Siewior [this message]
2026-08-26 7:38 ` David Woodhouse
2026-08-26 15:05 ` Paul E. McKenney
2026-08-26 16:28 ` Paul E. McKenney
2026-08-26 18:01 ` David Woodhouse
[not found] ` <e62a7362-7dd0-4615-8877-6ab675971ab2@paulmck-laptop>
2026-08-26 20:30 ` David Woodhouse
2026-08-26 21:04 ` Paul E. McKenney
2026-08-12 16:04 ` Paolo Bonzini
2026-08-12 16:07 ` Jason Gunthorpe
2026-08-12 17:49 ` David Woodhouse
2026-08-20 13:30 ` Sebastian Andrzej Siewior
2026-08-20 14:26 ` David Woodhouse
2026-08-20 15:34 ` Sebastian Andrzej Siewior
2026-08-20 18:49 ` David Woodhouse
2026-08-12 8:13 ` Michal Hocko
2026-08-11 15:29 ` Jason Gunthorpe
2026-08-11 15:15 ` David Woodhouse
2026-08-11 15:24 ` Jason Gunthorpe
2026-08-11 15:29 ` David Woodhouse
2026-08-11 16:24 ` Jason Gunthorpe
2026-08-11 17:22 ` David Woodhouse
2026-08-11 17:26 ` Jason Gunthorpe
2026-08-11 17:59 ` David Woodhouse
2026-08-11 18:19 ` Jason Gunthorpe
2026-08-11 20:06 ` Sean Christopherson
2026-08-11 20:21 ` Paolo Bonzini
2026-08-11 21:14 ` David Woodhouse
2026-08-11 22:58 ` Sean Christopherson
2026-08-11 23:50 ` David Woodhouse
2026-08-12 10:25 ` David Woodhouse
2026-08-12 16:07 ` Sean Christopherson
2026-08-11 20:29 ` David Woodhouse
2026-08-11 15:12 ` David Hildenbrand (Arm)
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