From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, Steven Rostedt <rostedt@goodmis.org>,
"Paul E. McKenney" <paulmck@linux.ibm.com>,
Masami Hiramatsu <mhiramat@kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: [patch 3/8] locking: Use CONFIG_PREEMPTION
Date: Fri, 26 Jul 2019 23:19:39 +0200 [thread overview]
Message-ID: <20190726212124.302995288@linutronix.de> (raw)
In-Reply-To: 20190726211936.226129163@linutronix.de
CONFIG_PREEMPTION is selected by CONFIG_PREEMPT and by
CONFIG_PREEMPT_RT. Both PREEMPT and PREEMPT_RT require the same
functionality which today depends on CONFIG_PREEMPT.
Adjust the comments in the locking code.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/spinlock.h | 2 +-
include/linux/spinlock_api_smp.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -214,7 +214,7 @@ static inline void do_raw_spin_unlock(ra
/*
* Define the various spin_lock methods. Note we define these
- * regardless of whether CONFIG_SMP or CONFIG_PREEMPT are set. The
+ * regardless of whether CONFIG_SMP or CONFIG_PREEMPTION are set. The
* various methods are defined as nops in the case they are not
* required.
*/
--- a/include/linux/spinlock_api_smp.h
+++ b/include/linux/spinlock_api_smp.h
@@ -96,7 +96,7 @@ static inline int __raw_spin_trylock(raw
/*
* If lockdep is enabled then we use the non-preemption spin-ops
- * even on CONFIG_PREEMPT, because lockdep assumes that interrupts are
+ * even on CONFIG_PREEMPTION, because lockdep assumes that interrupts are
* not re-enabled during lock-acquire (which the preempt-spin-ops do):
*/
#if !defined(CONFIG_GENERIC_LOCKBREAK) || defined(CONFIG_DEBUG_LOCK_ALLOC)
next prev parent reply other threads:[~2019-07-26 21:24 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-26 21:19 [patch 0/8] core, x86: Preparatory steps for RT Thomas Gleixner
2019-07-26 21:19 ` [patch 1/8] preempt: Use CONFIG_PREEMPTION where appropriate Thomas Gleixner
2019-07-31 17:55 ` [tip:sched/rt] sched/preempt: " tip-bot for Thomas Gleixner
2019-07-26 21:19 ` [patch 2/8] rcu: Use CONFIG_PREEMPTION Thomas Gleixner
2019-07-31 17:56 ` [tip:sched/rt] " tip-bot for Thomas Gleixner
2019-07-26 21:19 ` Thomas Gleixner [this message]
2019-07-31 17:56 ` [tip:sched/rt] locking/spinlocks: " tip-bot for Thomas Gleixner
2019-07-26 21:19 ` [patch 4/8] tracing: " Thomas Gleixner
2019-07-31 17:57 ` [tip:sched/rt] " tip-bot for Thomas Gleixner
2019-07-26 21:19 ` [patch 5/8] kprobes: " Thomas Gleixner
2019-07-31 17:58 ` [tip:sched/rt] " tip-bot for Thomas Gleixner
2019-07-26 21:19 ` [patch 6/8] x86: " Thomas Gleixner
2019-07-31 17:59 ` [tip:sched/rt] " tip-bot for Thomas Gleixner
2019-07-26 21:19 ` [patch 7/8] x86/dumpstack: Indicate PREEMPT_RT in dumps Thomas Gleixner
2019-07-31 17:59 ` [tip:sched/rt] " tip-bot for Thomas Gleixner
2019-07-26 21:19 ` [patch 8/8] x86/kvm: Use CONFIG_PREEMPTION Thomas Gleixner
2019-07-31 18:00 ` [tip:sched/rt] " tip-bot for Thomas Gleixner
2019-07-27 1:30 ` [patch 0/8] core, x86: Preparatory steps for RT Steven Rostedt
2019-07-27 6:16 ` Thomas Gleixner
2019-07-29 19:48 ` Peter Zijlstra
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