Commit-ID: f08b5fe2d4eeb0a8a6e0e7e71928cf2c7b1b791d Gitweb: http://git.kernel.org/tip/f08b5fe2d4eeb0a8a6e0e7e71928cf2c7b1b791d Author: Len Brown <len.br...@intel.com> AuthorDate: Fri, 18 Nov 2016 01:23:19 -0500 Committer: Thomas Gleixner <t...@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.br...@intel.com> Acked-by: Ingo Molnar <mi...@kernel.org> Acked-by: Peter Zijlstra (Intel) <pet...@infradead.org> Link: http://lkml.kernel.org/r/e4a24197cf9c227fcd1ca2df09999eaec9052f49.1479449716.git.len.br...@intel.com Signed-off-by: Thomas Gleixner <t...@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 */
