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From: Pingfan Liu <kernelfans@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: "Pingfan Liu" <kernelfans@gmail.com>,
	"Alexander Gordeev" <agordeev@linux.ibm.com>,
	"Baokun Li" <libaokun1@huawei.com>,
	"Bartosz Golaszewski" <brgl@bgdev.pl>,
	"Borislav Petkov" <bp@alien8.de>,
	"Cédric Le Goater" <clg@kaod.org>,
	"Christian Borntraeger" <borntraeger@linux.ibm.com>,
	"Dave Hansen" <dave.hansen@linux.intel.com>,
	"Dongli Zhang" <dongli.zhang@oracle.com>,
	"Florian Fainelli" <f.fainelli@gmail.com>,
	"Frederic Weisbecker" <frederic@kernel.org>,
	"Heiko Carstens" <hca@linux.ibm.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	"Ingo Molnar" <mingo@redhat.com>,
	"Jason A. Donenfeld" <Jason@zx2c4.com>,
	"Maciej W. Rozycki" <macro@orcam.me.uk>,
	"Marc Zyngier" <maz@kernel.org>,
	"Mark Rutland" <mark.rutland@arm.com>,
	"Miguel Ojeda" <ojeda@kernel.org>,
	"Nathan Chancellor" <nathan@kernel.org>,
	"Nick Desaulniers" <ndesaulniers@google.com>,
	"Oleksandr Natalenko" <oleksandr@natalenko.name>,
	"Peter Zijlstra" <peterz@infradead.org>,
	"Qais Yousef" <qais.yousef@arm.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	"Randy Dunlap" <rdunlap@infradead.org>,
	"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
	"Steven Price" <steven.price@arm.com>,
	"Sven Schnelle" <svens@linux.ibm.com>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Tom Rix" <trix@redhat.com>,
	"Valentin Schneider" <valentin.schneider@arm.com>,
	"Vasily Gorbik" <gor@linux.ibm.com>,
	"Wolfram Sang" <wsa+renesas@sang-engineering.com>,
	"Yuan ZhaoXiong" <yuanzhaoxiong@baidu.com>,
	YueHaibing <yuehaibing@huawei.com>
Subject: [PATCH 0/9] trival fix or improvement about irq_desc access
Date: Wed, 20 Apr 2022 22:05:12 +0800	[thread overview]
Message-ID: <20220420140521.45361-1-kernelfans@gmail.com> (raw)

When I went through the access of irq_to_desc(), I found the following
trival issue or improvement can be done.
[1-4/9]: clean up or small improvement
[5-6/9]: bugfix for access to irq_desc under releasable context
[7/9]: clean up
[8-9/9]: bugfix for irq debugfs


Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Baokun Li <libaokun1@huawei.com>
Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "Cédric Le Goater" <clg@kaod.org>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dongli Zhang <dongli.zhang@oracle.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: "Maciej W. Rozycki" <macro@orcam.me.uk>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Oleksandr Natalenko <oleksandr@natalenko.name>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qais Yousef <qais.yousef@arm.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Steven Price <steven.price@arm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tom Rix <trix@redhat.com>
Cc: Valentin Schneider <valentin.schneider@arm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Yuan ZhaoXiong <yuanzhaoxiong@baidu.com>
Cc: YueHaibing <yuehaibing@huawei.com>
To: linux-kernel@vger.kernel.org


Pingfan Liu (9):
  irq/irqdesc: put the lock at the exact place in irq_sysfs_init()
  irq/irqdesc: change the name of delete_irq_desc() to irq_delete_desc()
  irq/manage: remove some unreferenced code
  s390/irq: utilize RCU instead of irq_lock_sparse() in
    show_msi_interrupt()
  x86/irq: place for_each_active_irq() in rcu read section
  pm/irq: make for_each_irq_desc() safe of irq_desc release
  irq: remove needless lock in takedown_cpu()
  irq: make irq_lock_sparse() independent of CONFIG_SPARSE_IRQ
  irq/irqdesc: rename sparse_irq_lock to bitmap_lock

 .clang-format                  |  1 -
 arch/s390/kernel/irq.c         | 11 ++++----
 arch/x86/kernel/apic/io_apic.c |  3 +++
 include/linux/irq.h            |  1 -
 include/linux/irqdesc.h        | 10 +++-----
 include/linux/irqnr.h          |  3 ---
 kernel/cpu.c                   | 15 ++++-------
 kernel/irq/cpuhotplug.c        |  4 +--
 kernel/irq/debugfs.c           |  4 +--
 kernel/irq/irqdesc.c           | 47 +++++++++++++++++-----------------
 kernel/irq/manage.c            | 15 -----------
 kernel/irq/pm.c                |  3 +++
 12 files changed, 47 insertions(+), 70 deletions(-)

-- 
2.31.1


             reply	other threads:[~2022-04-20 14:05 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-20 14:05 Pingfan Liu [this message]
2022-04-20 14:05 ` [PATCH 1/9] irq/irqdesc: put the lock at the exact place in irq_sysfs_init() Pingfan Liu
2022-04-20 14:05 ` [PATCH 2/9] irq/irqdesc: change the name of delete_irq_desc() to irq_delete_desc() Pingfan Liu
2022-04-20 14:05 ` [PATCH 3/9] irq/manage: remove some unreferenced code Pingfan Liu
2022-04-20 20:56   ` Miguel Ojeda
2022-04-20 14:05 ` [PATCH 4/9] s390/irq: utilize RCU instead of irq_lock_sparse() in show_msi_interrupt() Pingfan Liu
2022-04-20 18:16   ` Heiko Carstens
2022-04-21  3:36     ` Pingfan Liu
2022-04-21 11:42       ` Heiko Carstens
2022-04-22  9:56         ` Pingfan Liu
2022-04-22 10:02   ` [PATCHv2] " Pingfan Liu
2022-04-25 11:39     ` Heiko Carstens
2022-04-20 14:05 ` [PATCH 5/9] x86/irq: place for_each_active_irq() in rcu read section Pingfan Liu
2022-04-20 14:05 ` [PATCH 6/9] pm/irq: make for_each_irq_desc() safe of irq_desc release Pingfan Liu
2022-04-20 16:23   ` Rafael J. Wysocki
2022-04-21  3:31     ` Pingfan Liu
2022-04-21 10:57       ` Rafael J. Wysocki
2022-04-22 10:43         ` Pingfan Liu
2022-04-27  6:03   ` [PATCHv2] genirq/PM: Make " Pingfan Liu
2022-04-20 14:05 ` [PATCH 7/9] irq: remove needless lock in takedown_cpu() Pingfan Liu
2022-04-21 16:11   ` Thomas Gleixner
2022-04-25  2:57     ` Pingfan Liu
2022-04-25  9:43       ` Thomas Gleixner
2022-04-27  6:01         ` Pingfan Liu
2022-04-20 14:05 ` [PATCH 8/9] irq: make irq_lock_sparse() independent of CONFIG_SPARSE_IRQ Pingfan Liu
2022-04-20 14:05 ` [PATCH 9/9] irq/irqdesc: rename sparse_irq_lock to bitmap_lock Pingfan Liu

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