From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Thu, 22 Jan 2009 13:12:41 +0000 (+0100)
Subject: lockdep: simplify mark_held_locks
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=36bfb9bb03db2002a8574600c6aeb4cdd1ba01a6;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

lockdep: simplify mark_held_locks

remove the explicit state iteration

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index dd4716c08325..18e0990148e6 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -2253,11 +2253,19 @@ static int mark_lock_irq(struct task_struct *curr, struct held_lock *this,
 }
 
 enum mark_type {
-	HARDIRQ,
-	SOFTIRQ,
-	RECLAIM_FS,
+#define LOCKDEP_STATE(__STATE)	__STATE,
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
 };
 
+#define MARK_HELD_CASE(__STATE)						\
+	case __STATE:							\
+		if (hlock->read)					\
+			usage_bit = LOCK_ENABLED_##__STATE##_READ;	\
+		else							\
+			usage_bit = LOCK_ENABLED_##__STATE;		\
+		break;
+
 /*
  * Mark all held locks with a usage bit:
  */
@@ -2272,27 +2280,9 @@ mark_held_locks(struct task_struct *curr, enum mark_type mark)
 		hlock = curr->held_locks + i;
 
 		switch (mark) {
-		case HARDIRQ:
-			if (hlock->read)
-				usage_bit = LOCK_ENABLED_HARDIRQ_READ;
-			else
-				usage_bit = LOCK_ENABLED_HARDIRQ;
-			break;
-
-		case SOFTIRQ:
-			if (hlock->read)
-				usage_bit = LOCK_ENABLED_SOFTIRQ_READ;
-			else
-				usage_bit = LOCK_ENABLED_SOFTIRQ;
-			break;
-
-		case RECLAIM_FS:
-			if (hlock->read)
-				usage_bit = LOCK_ENABLED_RECLAIM_FS_READ;
-			else
-				usage_bit = LOCK_ENABLED_RECLAIM_FS;
-			break;
-
+#define LOCKDEP_STATE(__STATE) MARK_HELD_CASE(__STATE)
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
 		default:
 			BUG();
 		}