[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [PATCH -next v4 11/19] arm64: entry: Extract raw_irqentry_exit_cond_resched() function
Extract the arm64 resched logic code to raw_irqentry_exit_cond_resched() function, which makes the code more clear when switch to generic entry. No functional changes. Signed-off-by: Jinjie Ruan <ruanjinjie@xxxxxxxxxx> --- arch/arm64/include/asm/preempt.h | 1 + arch/arm64/kernel/entry-common.c | 17 ++++++++++------- 2 files changed, 11 insertions(+), 7 deletions(-) diff --git a/arch/arm64/include/asm/preempt.h b/arch/arm64/include/asm/preempt.h index 0159b625cc7f..d0f93385bd85 100644 --- a/arch/arm64/include/asm/preempt.h +++ b/arch/arm64/include/asm/preempt.h @@ -85,6 +85,7 @@ static inline bool should_resched(int preempt_offset) void preempt_schedule(void); void preempt_schedule_notrace(void); +void raw_irqentry_exit_cond_resched(void); #ifdef CONFIG_PREEMPT_DYNAMIC DECLARE_STATIC_KEY_TRUE(sk_dynamic_irqentry_exit_cond_resched); diff --git a/arch/arm64/kernel/entry-common.c b/arch/arm64/kernel/entry-common.c index 58d660878c09..5b7df53cfcf6 100644 --- a/arch/arm64/kernel/entry-common.c +++ b/arch/arm64/kernel/entry-common.c @@ -95,6 +95,14 @@ static inline bool arm64_irqentry_exit_need_resched(void) return true; } +void raw_irqentry_exit_cond_resched(void) +{ + if (!preempt_count()) { + if (need_resched() && arm64_irqentry_exit_need_resched()) + preempt_schedule_irq(); + } +} + /* * Handle IRQ/context state management when exiting to kernel mode. * After this function returns it is not safe to call regular kernel code, @@ -119,13 +127,8 @@ static void noinstr exit_to_kernel_mode(struct pt_regs *regs, return; } - if (IS_ENABLED(CONFIG_PREEMPTION)) { - if (!preempt_count()) { - if (need_resched() && - arm64_irqentry_exit_need_resched()) - preempt_schedule_irq(); - } - } + if (IS_ENABLED(CONFIG_PREEMPTION)) + raw_irqentry_exit_cond_resched(); trace_hardirqs_on(); } else { -- 2.34.1
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