From: Jakub Kicinski <kuba@kernel.org>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
"David S. Miller" <davem@davemloft.net>,
Daniel Bristot de Oliveira <bristot@kernel.org>,
Boqun Feng <boqun.feng@gmail.com>,
Daniel Borkmann <daniel@iogearbox.net>,
Eric Dumazet <edumazet@google.com>,
Frederic Weisbecker <frederic@kernel.org>,
Ingo Molnar <mingo@redhat.com>, Paolo Abeni <pabeni@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Waiman Long <longman@redhat.com>, Will Deacon <will@kernel.org>
Subject: Re: [PATCH v4 net-next 00/15] locking: Introduce nested-BH locking.
Date: Wed, 5 Jun 2024 19:52:46 -0700 [thread overview]
Message-ID: <20240605195246.6873138c@kernel.org> (raw)
In-Reply-To: <20240604154425.878636-1-bigeasy@linutronix.de>
On Tue, 4 Jun 2024 17:24:07 +0200 Sebastian Andrzej Siewior wrote:
> Disabling bottoms halves acts as per-CPU BKL. On PREEMPT_RT code within
> local_bh_disable() section remains preemtible. As a result high prior
> tasks (or threaded interrupts) will be blocked by lower-prio task (or
> threaded interrupts) which are long running which includes softirq
> sections.
Appears to not apply cleanly, please rebase
prev parent reply other threads:[~2024-06-06 2:52 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-04 15:24 [PATCH v4 net-next 00/15] locking: Introduce nested-BH locking Sebastian Andrzej Siewior
2024-06-04 15:24 ` [PATCH v4 net-next 01/14] locking/local_lock: Add local nested BH locking infrastructure Sebastian Andrzej Siewior
2024-06-06 7:52 ` Peter Zijlstra
2024-06-06 7:59 ` Sebastian Andrzej Siewior
2024-06-04 15:24 ` [PATCH v4 net-next 02/14] net: Use __napi_alloc_frag_align() instead of open coding it Sebastian Andrzej Siewior
2024-06-04 15:24 ` [PATCH v4 net-next 03/14] net: Use nested-BH locking for napi_alloc_cache Sebastian Andrzej Siewior
2024-06-06 2:54 ` Jakub Kicinski
2024-06-06 6:22 ` Sebastian Andrzej Siewior
2024-06-04 15:24 ` [PATCH v4 net-next 04/14] net/tcp_sigpool: Use nested-BH locking for sigpool_scratch Sebastian Andrzej Siewior
2024-06-04 15:24 ` [PATCH v4 net-next 05/14] net/ipv4: Use nested-BH locking for ipv4_tcp_sk Sebastian Andrzej Siewior
2024-06-04 15:24 ` [PATCH v4 net-next 06/14] netfilter: br_netfilter: Use nested-BH locking for brnf_frag_data_storage Sebastian Andrzej Siewior
2024-06-04 15:24 ` [PATCH v4 net-next 07/14] net: softnet_data: Make xmit.recursion per task Sebastian Andrzej Siewior
2024-06-04 15:24 ` [PATCH v4 net-next 08/14] dev: Remove PREEMPT_RT ifdefs from backlog_lock.*() Sebastian Andrzej Siewior
2024-06-04 15:24 ` [PATCH v4 net-next 09/14] dev: Use nested-BH locking for softnet_data.process_queue Sebastian Andrzej Siewior
2024-06-04 15:24 ` [PATCH v4 net-next 10/14] lwt: Don't disable migration prio invoking BPF Sebastian Andrzej Siewior
2024-06-04 15:24 ` [PATCH v4 net-next 11/14] seg6: Use nested-BH locking for seg6_bpf_srh_states Sebastian Andrzej Siewior
2024-06-04 15:24 ` [PATCH v4 net-next 12/14] net: Use nested-BH locking for bpf_scratchpad Sebastian Andrzej Siewior
2024-06-04 15:24 ` [PATCH v4 net-next 13/14] net: Reference bpf_redirect_info via task_struct on PREEMPT_RT Sebastian Andrzej Siewior
2024-06-05 10:20 ` Toke Høiland-Jørgensen
2024-06-04 15:24 ` [PATCH v4 net-next 14/14] net: Move per-CPU flush-lists to bpf_net_context " Sebastian Andrzej Siewior
2024-06-05 10:20 ` Toke Høiland-Jørgensen
2024-06-06 2:52 ` Jakub Kicinski [this message]
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