From: tip-bot for Len Brown <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@kernel.org,
len.brown@intel.com, tglx@linutronix.de, peterz@infradead.org
Subject: [tip:x86/idle] x86/idle: Remove is_idle flag
Date: Fri, 18 Nov 2016 03:20:26 -0800 [thread overview]
Message-ID: <tip-f08b5fe2d4eeb0a8a6e0e7e71928cf2c7b1b791d@git.kernel.org> (raw)
In-Reply-To: <e4a24197cf9c227fcd1ca2df09999eaec9052f49.1479449716.git.len.brown@intel.com>
Commit-ID: f08b5fe2d4eeb0a8a6e0e7e71928cf2c7b1b791d
Gitweb: http://git.kernel.org/tip/f08b5fe2d4eeb0a8a6e0e7e71928cf2c7b1b791d
Author: Len Brown <len.brown@intel.com>
AuthorDate: Fri, 18 Nov 2016 01:23:19 -0500
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Fri, 18 Nov 2016 12:07:57 +0100
x86/idle: Remove is_idle flag
Upon removal of the idle_notifier, all accesses to the "is_idle" flag serve
no purpose.
Signed-off-by: Len Brown <len.brown@intel.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/e4a24197cf9c227fcd1ca2df09999eaec9052f49.1479449716.git.len.brown@intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/kernel/process.c | 7 -------
1 file changed, 7 deletions(-)
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index f519507..d8e9d79 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -65,10 +65,6 @@ __visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, cpu_tss) = {
};
EXPORT_PER_CPU_SYMBOL(cpu_tss);
-#ifdef CONFIG_X86_64
-static DEFINE_PER_CPU(unsigned char, is_idle);
-#endif
-
/*
* this gets called so that we can store lazy state into memory and copy the
* current task into the new thread.
@@ -241,13 +237,10 @@ static inline void play_dead(void)
#ifdef CONFIG_X86_64
void enter_idle(void)
{
- this_cpu_write(is_idle, 1);
}
static void __exit_idle(void)
{
- if (x86_test_and_clear_bit_percpu(0, is_idle) == 0)
- return;
}
/* Called from interrupts to signify idle end */
next prev parent reply other threads:[~2016-11-18 11:22 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-18 6:23 [PATCH 0/5] x86: remove idle notifier Len Brown
2016-11-18 6:23 ` [PATCH 1/5] i7300_idle: remove this driver Len Brown
2016-11-18 6:23 ` [PATCH 2/5] x86: remove idle_notifier Len Brown
2016-11-18 11:19 ` [tip:x86/idle] x86/idle: Remove idle_notifier tip-bot for Len Brown
2016-12-06 16:54 ` [PATCH 2/5] x86: remove idle_notifier Pavel Machek
2016-12-07 11:46 ` Thomas Gleixner
2016-12-07 13:40 ` Pavel Machek
2016-12-08 9:18 ` Thomas Gleixner
2016-12-08 22:05 ` Pavel Machek
2016-12-08 22:53 ` Thomas Gleixner
2016-11-18 6:23 ` [PATCH 3/5] x86: remove is_idle flag Len Brown
2016-11-18 11:20 ` tip-bot for Len Brown [this message]
2016-11-18 6:23 ` [PATCH 4/5] x86: remove x86_test_and_clear_bit_percpu() Len Brown
2016-11-18 11:20 ` [tip:x86/idle] x86: Remove x86_test_and_clear_bit_percpu() tip-bot for Len Brown
2016-11-18 6:23 ` [PATCH 5/5] x86: remove enter_idle(), exit_idle() Len Brown
2016-11-18 11:21 ` [tip:x86/idle] x86/idle: Remove " tip-bot for Len Brown
2016-11-18 11:19 ` [tip:x86/idle] i7300_idle: Remove this driver tip-bot for Len Brown
2016-11-18 8:17 ` [PATCH 0/5] x86: remove idle notifier Ingo Molnar
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