From: Boqun Feng <boqun@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: "Catalin Marinas" <catalin.marinas@arm.com>,
"Will Deacon" <will@kernel.org>,
"Jonas Bonn" <jonas@southpole.se>,
"Stefan Kristiansson" <stefan.kristiansson@saunalahti.fi>,
"Stafford Horne" <shorne@gmail.com>,
"Heiko Carstens" <hca@linux.ibm.com>,
"Vasily Gorbik" <gor@linux.ibm.com>,
"Alexander Gordeev" <agordeev@linux.ibm.com>,
"Christian Borntraeger" <borntraeger@linux.ibm.com>,
"Sven Schnelle" <svens@linux.ibm.com>,
"Thomas Gleixner" <tglx@kernel.org>,
"Ingo Molnar" <mingo@redhat.com>,
"Borislav Petkov" <bp@alien8.de>,
"Dave Hansen" <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
"Arnd Bergmann" <arnd@arndb.de>,
"Juri Lelli" <juri.lelli@redhat.com>,
"Vincent Guittot" <vincent.guittot@linaro.org>,
"Dietmar Eggemann" <dietmar.eggemann@arm.com>,
"Steven Rostedt" <rostedt@goodmis.org>,
"Ben Segall" <bsegall@google.com>, "Mel Gorman" <mgorman@suse.de>,
"Valentin Schneider" <vschneid@redhat.com>,
"K Prateek Nayak" <kprateek.nayak@amd.com>,
"Boqun Feng" <boqun@kernel.org>,
"Waiman Long" <longman@redhat.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Andrii Nakryiko" <andrii@kernel.org>,
"Eduard Zingerman" <eddyz87@gmail.com>,
"Alexei Starovoitov" <ast@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Martin KaFai Lau" <martin.lau@linux.dev>,
"Kumar Kartikeya Dwivedi" <memxor@gmail.com>,
"Song Liu" <song@kernel.org>,
"Yonghong Song" <yonghong.song@linux.dev>,
"Jiri Olsa" <jolsa@kernel.org>, "Shuah Khan" <shuah@kernel.org>,
"Miguel Ojeda" <ojeda@kernel.org>, "Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <lossin@kernel.org>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"Trevor Gross" <tmgross@umich.edu>,
"Danilo Krummrich" <dakr@kernel.org>,
"Jinjie Ruan" <ruanjinjie@huawei.com>,
"Lyude Paul" <lyude@redhat.com>, "Thomas Huth" <thuth@redhat.com>,
"Sohil Mehta" <sohil.mehta@intel.com>,
"Pawan Gupta" <pawan.kumar.gupta@linux.intel.com>,
"Sean Christopherson" <seanjc@google.com>,
"Nikunj A Dadhania" <nikunj@amd.com>,
"Xin Li (Intel)" <xin@zytor.com>,
"Joel Fernandes" <joelagnelf@nvidia.com>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
"Randy Dunlap" <rdunlap@infradead.org>,
"Yury Norov" <ynorov@nvidia.com>,
"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
linux-kernel@vger.kernel.org, linux-openrisc@vger.kernel.org,
linux-s390@vger.kernel.org, linux-arch@vger.kernel.org,
bpf@vger.kernel.org, linux-kselftest@vger.kernel.org,
rust-for-linux@vger.kernel.org
Subject: [PATCH v3 00/13] Refcounted interrupt disable and SpinLockIrq for rust (Part 1)
Date: Thu, 4 Jun 2026 22:41:15 -0700 [thread overview]
Message-ID: <20260605054128.5925-1-boqun@kernel.org> (raw)
Hi Peter,
Please take a look at the v3 of refcounted interrupt disabling.
Changes since v2:
- Fix NMI_OFFSET underflow issue reported by sashiko. See patch #1
(__nmi_ext()) and #10 (__preempt_count_nmi_exit()) for details: we
have to replace preempt_count_sub() with preempt_count_set().
- Add WARN_ON_ONCE(in_nmi()) in local_interrupt_disable() per Peter.
- Remove the use of should_resched() in local_interrupt_enable(), see
patch #13.
- Remove my gmail in SoB.
v1: https://lore.kernel.org/rust-for-linux/20260508042111.24358-1-boqun@kernel.org/
v2:
Boqun Feng (9):
preempt: Introduce HARDIRQ_DISABLE_BITS
preempt: Introduce __preempt_count_{sub, add}_return()
irq & spin_lock: Add counted interrupt disabling/enabling
locking: Switch to _irq_{disable,enable}() variants in cleanup guards
sched: Remove the unused preempt_offset parameter of __cant_sleep()
sched: Avoid signed comparison of preempt_count() in __cant_migrate()
preempt: Introduce HAS_SEPARATE_PREEMPT_RESCHED_BITS
arm64: sched/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS
irq: Optimize reschedule check in local_interrupt_enable()
Heiko Carstens (1):
s390/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS
Joel Fernandes (1):
preempt: Track NMI nesting to separate per-CPU counter
Lyude Paul (2):
openrisc: Include <linux/cpumask.h> in smp.h
irq: Add KUnit test for refcounted interrupt enable/disable
arch/arm64/Kconfig | 1 +
arch/arm64/include/asm/preempt.h | 18 +++
arch/openrisc/include/asm/smp.h | 2 +
arch/s390/Kconfig | 1 +
arch/s390/include/asm/lowcore.h | 13 ++-
arch/s390/include/asm/preempt.h | 49 ++++----
arch/x86/Kconfig | 1 +
arch/x86/include/asm/preempt.h | 61 +++++++---
arch/x86/kernel/cpu/common.c | 2 +-
include/asm-generic/preempt.h | 14 +++
include/linux/hardirq.h | 41 ++++++-
include/linux/interrupt_rc.h | 76 ++++++++++++
include/linux/kernel.h | 4 +-
include/linux/preempt.h | 35 ++++--
include/linux/spinlock.h | 49 +++++---
include/linux/spinlock_api_smp.h | 41 +++++++
include/linux/spinlock_api_up.h | 16 +++
include/linux/spinlock_rt.h | 18 +++
kernel/Kconfig.preempt | 4 +
kernel/irq/Makefile | 1 +
kernel/irq/refcount_interrupt_test.c | 109 ++++++++++++++++++
kernel/locking/spinlock.c | 29 +++++
kernel/sched/core.c | 18 ++-
kernel/softirq.c | 22 +++-
lib/locking-selftest.c | 2 +-
.../testing/selftests/bpf/bpf_experimental.h | 7 +-
26 files changed, 554 insertions(+), 80 deletions(-)
create mode 100644 include/linux/interrupt_rc.h
create mode 100644 kernel/irq/refcount_interrupt_test.c
--
2.51.0
next reply other threads:[~2026-06-05 5:41 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-05 5:41 Boqun Feng [this message]
2026-06-05 5:41 ` [PATCH v3 01/13] preempt: Track NMI nesting to separate per-CPU counter Boqun Feng
2026-06-05 5:59 ` sashiko-bot
2026-06-05 5:41 ` [PATCH v3 02/13] preempt: Introduce HARDIRQ_DISABLE_BITS Boqun Feng
2026-06-05 6:01 ` sashiko-bot
2026-06-05 5:41 ` [PATCH v3 03/13] preempt: Introduce __preempt_count_{sub, add}_return() Boqun Feng
2026-06-05 5:59 ` sashiko-bot
2026-06-05 6:30 ` bot+bpf-ci
2026-06-05 6:45 ` Boqun Feng
2026-06-05 5:41 ` [PATCH v3 04/13] openrisc: Include <linux/cpumask.h> in smp.h Boqun Feng
2026-06-05 5:41 ` [PATCH v3 05/13] irq & spin_lock: Add counted interrupt disabling/enabling Boqun Feng
2026-06-05 6:01 ` sashiko-bot
2026-06-05 6:27 ` Boqun Feng
2026-06-05 6:30 ` bot+bpf-ci
2026-06-05 6:40 ` Boqun Feng
2026-06-05 5:41 ` [PATCH v3 06/13] irq: Add KUnit test for refcounted interrupt enable/disable Boqun Feng
2026-06-05 5:53 ` sashiko-bot
2026-06-05 5:41 ` [PATCH v3 07/13] locking: Switch to _irq_{disable,enable}() variants in cleanup guards Boqun Feng
2026-06-05 5:57 ` sashiko-bot
2026-06-05 5:41 ` [PATCH v3 08/13] sched: Remove the unused preempt_offset parameter of __cant_sleep() Boqun Feng
2026-06-05 5:41 ` [PATCH v3 09/13] sched: Avoid signed comparison of preempt_count() in __cant_migrate() Boqun Feng
2026-06-05 5:41 ` [PATCH v3 10/13] preempt: Introduce HAS_SEPARATE_PREEMPT_RESCHED_BITS Boqun Feng
2026-06-05 5:59 ` sashiko-bot
2026-06-05 6:30 ` bot+bpf-ci
2026-06-05 5:41 ` [PATCH v3 11/13] arm64: sched/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS Boqun Feng
2026-06-05 5:41 ` [PATCH v3 12/13] s390/preempt: " Boqun Feng
2026-06-05 5:41 ` [PATCH v3 13/13] irq: Optimize reschedule check in local_interrupt_enable() Boqun Feng
2026-06-05 6:04 ` sashiko-bot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260605054128.5925-1-boqun@kernel.org \
--to=boqun@kernel.org \
--cc=a.hindborg@kernel.org \
--cc=agordeev@linux.ibm.com \
--cc=akpm@linux-foundation.org \
--cc=aliceryhl@google.com \
--cc=andrii@kernel.org \
--cc=andriy.shevchenko@linux.intel.com \
--cc=arnd@arndb.de \
--cc=ast@kernel.org \
--cc=bigeasy@linutronix.de \
--cc=bjorn3_gh@protonmail.com \
--cc=borntraeger@linux.ibm.com \
--cc=bp@alien8.de \
--cc=bpf@vger.kernel.org \
--cc=bsegall@google.com \
--cc=catalin.marinas@arm.com \
--cc=dakr@kernel.org \
--cc=daniel@iogearbox.net \
--cc=dave.hansen@linux.intel.com \
--cc=dietmar.eggemann@arm.com \
--cc=eddyz87@gmail.com \
--cc=gary@garyguo.net \
--cc=gor@linux.ibm.com \
--cc=hca@linux.ibm.com \
--cc=hpa@zytor.com \
--cc=joelagnelf@nvidia.com \
--cc=jolsa@kernel.org \
--cc=jonas@southpole.se \
--cc=juri.lelli@redhat.com \
--cc=kprateek.nayak@amd.com \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=linux-openrisc@vger.kernel.org \
--cc=linux-s390@vger.kernel.org \
--cc=longman@redhat.com \
--cc=lossin@kernel.org \
--cc=lyude@redhat.com \
--cc=martin.lau@linux.dev \
--cc=memxor@gmail.com \
--cc=mgorman@suse.de \
--cc=mingo@redhat.com \
--cc=nikunj@amd.com \
--cc=ojeda@kernel.org \
--cc=pawan.kumar.gupta@linux.intel.com \
--cc=peterz@infradead.org \
--cc=rdunlap@infradead.org \
--cc=rostedt@goodmis.org \
--cc=ruanjinjie@huawei.com \
--cc=rust-for-linux@vger.kernel.org \
--cc=seanjc@google.com \
--cc=shorne@gmail.com \
--cc=shuah@kernel.org \
--cc=sohil.mehta@intel.com \
--cc=song@kernel.org \
--cc=stefan.kristiansson@saunalahti.fi \
--cc=svens@linux.ibm.com \
--cc=tglx@kernel.org \
--cc=thuth@redhat.com \
--cc=tmgross@umich.edu \
--cc=vincent.guittot@linaro.org \
--cc=vschneid@redhat.com \
--cc=will@kernel.org \
--cc=x86@kernel.org \
--cc=xin@zytor.com \
--cc=ynorov@nvidia.com \
--cc=yonghong.song@linux.dev \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.