From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Juri Lelli <juri.lelli@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
Lai Jiangshan <jiangshanlai@gmail.com>,
dri-devel@lists.freedesktop.org, Ben Segall <bsegall@google.com>,
linux-mm@kvack.org, linux-kselftest@vger.kernel.org,
linux-hexagon@vger.kernel.org, Will Deacon <will@kernel.org>,
Ingo Molnar <mingo@kernel.org>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
linux-arch@vger.kernel.org,
Vincent Guittot <vincent.guittot@linaro.org>,
Brian Cain <bcain@codeaurora.org>,
Richard Weinberger <richard@nod.at>,
Russell King <linux@armlinux.org.uk>,
David Airlie <airlied@linux.ie>, Ingo Molnar <mingo@redhat.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Mel Gorman <mgorman@suse.de>,
intel-gfx@lists.freedesktop.org, Matt Turner <mattst88@gmail.com>,
Valentin Schneider <valentin.schneider@arm.com>,
linux-xtensa@linux-xtensa.org, Shuah Khan <shuah@kernel.org>,
"Paul E. McKenney" <paulmck@kernel.org>,
Jeff Dike <jdike@addtoit.com>,
linux-um@lists.infradead.org,
Josh Triplett <josh@joshtriplett.org>,
Steven Rostedt <rostedt@goodmis.org>,
rcu@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Jani Nikula <jani.nikula@linux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
linux-arm-kernel@lists.infradead.org,
Richard Henderson <rth@twiddle.net>,
Chris Zankel <chris@zankel.net>,
Max Filippov <jcmvbkbc@gmail.com>,
Linus Torvalds <torvalds@linuxfoundation.org>,
Daniel Vetter <daniel@ffwll.ch>,
linux-alpha@vger.kernel.org,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Andrew Morton <akpm@linux-foundation.org>,
Daniel Bristot de Oliveira <bristot@redhat.com>
Subject: [patch 04/13] lockdep: Clenaup PREEMPT_COUNT leftovers
Date: Mon, 14 Sep 2020 22:42:13 +0200 [thread overview]
Message-ID: <20200914204441.375753691@linutronix.de> (raw)
In-Reply-To: 20200914204209.256266093@linutronix.de
CONFIG_PREEMPT_COUNT is now unconditionally enabled and will be
removed. Cleanup the leftovers before doing so.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Will Deacon <will@kernel.org>
---
include/linux/lockdep.h | 6 ++----
lib/Kconfig.debug | 1 -
2 files changed, 2 insertions(+), 5 deletions(-)
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -585,16 +585,14 @@ do { \
#define lockdep_assert_preemption_enabled() \
do { \
- WARN_ON_ONCE(IS_ENABLED(CONFIG_PREEMPT_COUNT) && \
- debug_locks && \
+ WARN_ON_ONCE(debug_locks && \
(preempt_count() != 0 || \
!raw_cpu_read(hardirqs_enabled))); \
} while (0)
#define lockdep_assert_preemption_disabled() \
do { \
- WARN_ON_ONCE(IS_ENABLED(CONFIG_PREEMPT_COUNT) && \
- debug_locks && \
+ WARN_ON_ONCE(debug_locks && \
(preempt_count() == 0 && \
raw_cpu_read(hardirqs_enabled))); \
} while (0)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1161,7 +1161,6 @@ config PROVE_LOCKING
select DEBUG_RWSEMS
select DEBUG_WW_MUTEX_SLOWPATH
select DEBUG_LOCK_ALLOC
- select PREEMPT_COUNT
select TRACE_IRQFLAGS
default n
help
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next prev parent reply other threads:[~2020-09-14 20:48 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-14 20:42 [patch 00/13] preempt: Make preempt count unconditional Thomas Gleixner
2020-09-14 20:42 ` [patch 01/13] lib/debug: Remove pointless ARCH_NO_PREEMPT dependencies Thomas Gleixner
2020-09-14 20:42 ` [patch 02/13] preempt: Make preempt count unconditional Thomas Gleixner
2020-09-14 20:42 ` [patch 03/13] preempt: Clenaup PREEMPT_COUNT leftovers Thomas Gleixner
2020-09-16 10:56 ` Valentin Schneider
2020-09-14 20:42 ` Thomas Gleixner [this message]
2020-09-15 16:11 ` [patch 04/13] lockdep: " Will Deacon
2020-09-14 20:42 ` [patch 05/13] mm/pagemap: " Thomas Gleixner
2020-09-14 20:42 ` [patch 06/13] locking/bitspinlock: " Thomas Gleixner
2020-09-15 16:10 ` Will Deacon
2020-09-14 20:42 ` [patch 07/13] uaccess: " Thomas Gleixner
2020-09-14 20:42 ` [patch 08/13] sched: " Thomas Gleixner
2020-09-16 10:56 ` Valentin Schneider
2020-09-14 20:42 ` [patch 09/13] ARM: " Thomas Gleixner
2020-09-14 20:42 ` [patch 10/13] xtensa: " Thomas Gleixner
2020-09-14 20:42 ` [patch 11/13] drm/i915: " Thomas Gleixner
2020-09-14 20:42 ` [patch 12/13] rcutorture: " Thomas Gleixner
2020-09-14 20:42 ` [patch 13/13] preempt: Remove PREEMPT_COUNT from Kconfig Thomas Gleixner
2020-09-14 20:54 ` [patch 00/13] preempt: Make preempt count unconditional Steven Rostedt
2020-09-14 20:59 ` Linus Torvalds
2020-09-14 21:55 ` Thomas Gleixner
2020-09-15 17:25 ` Paul E. McKenney
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