diff mbox series

[1/1] arm64: preempt: Add NEED_RESCHED to the preempt_count()

Message ID 20220905141829.28605-1-wonder_rock@126.com (mailing list archive)
State New, archived
Headers show
Series [1/1] arm64: preempt: Add NEED_RESCHED to the preempt_count() | expand

Commit Message

wonder_rock@126.com Sept. 5, 2022, 2:18 p.m. UTC 
From: Deyan Wang <wonder_rock@126.com>

preempt_count() will be checked in preempt_schedule_irq(),
we need check if NEED_RESCHED in preempt point.

Signed-off-by: Deyan Wang <wonder_rock@126.com>
---
 arch/arm64/include/asm/preempt.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Will Deacon Sept. 6, 2022, 12:11 p.m. UTC | #1 
On Mon, Sep 05, 2022 at 11:50:13PM +0800, wonder_rock@126.com wrote:
> I know it is wrong. I just want to say I think preempt_count() need include NEED_RESCHED

Won't that break everybody expecting a count? I'm not sure what you're
asking from us here.

Will
diff mbox series

Patch

diff --git a/arch/arm64/include/asm/preempt.h b/arch/arm64/include/asm/preempt.h
index 0159b625cc7f..083b0fd3c52a 100644
--- a/arch/arm64/include/asm/preempt.h
+++ b/arch/arm64/include/asm/preempt.h
@@ -10,7 +10,7 @@ 
 
 static inline int preempt_count(void)
 {
-	return READ_ONCE(current_thread_info()->preempt.count);
+	return READ_ONCE(current_thread_info()->preempt_count);
 }
 
 static inline void preempt_count_set(u64 pc)