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>

1 files changed, 14 insertions, 24 deletions

diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index dd4716c0832..18e0990148e 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();
                 }