lockdep: generate the state bit definitions

Generate the state bit definitions from the lockdep_states.h file.

Also, move LOCK_USED to last, so that the

 USED_IN
 USED_IN_READ
 ENABLED
 ENABLED_READ

states are nicely bit aligned -- we're going to use that property

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

1 files changed, 20 insertions, 27 deletions

diff --git a/kernel/lockdep_internals.h b/kernel/lockdep_internals.h
index 1352409cfef1..7e653e66ce5a 100644
--- a/kernel/lockdep_internals.h
+++ b/kernel/lockdep_internals.h
@@ -10,43 +10,36 @@
  * Lock-class usage-state bits:
  */
 enum lock_usage_bit {
-        LOCK_USED = 0,
-        LOCK_USED_IN_HARDIRQ,
-        LOCK_USED_IN_SOFTIRQ,
-        LOCK_USED_IN_RECLAIM_FS,
-        LOCK_ENABLED_SOFTIRQ,
-        LOCK_ENABLED_HARDIRQ,
-        LOCK_ENABLED_RECLAIM_FS,
-        LOCK_USED_IN_HARDIRQ_READ,
-        LOCK_USED_IN_SOFTIRQ_READ,
-        LOCK_USED_IN_RECLAIM_FS_READ,
-        LOCK_ENABLED_SOFTIRQ_READ,
-        LOCK_ENABLED_HARDIRQ_READ,
-        LOCK_ENABLED_RECLAIM_FS_READ,
+#define LOCKDEP_STATE(__STATE)          \
+        LOCK_USED_IN_##__STATE,         \
+        LOCK_USED_IN_##__STATE##_READ,  \
+        LOCK_ENABLED_##__STATE,         \
+        LOCK_ENABLED_##__STATE##_READ,
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+        LOCK_USED,
         LOCK_USAGE_STATES
 };
 
 /*
  * Usage-state bitmasks:
  */
-#define LOCKF_USED                      (1 << LOCK_USED)
-#define LOCKF_USED_IN_HARDIRQ           (1 << LOCK_USED_IN_HARDIRQ)
-#define LOCKF_USED_IN_SOFTIRQ           (1 << LOCK_USED_IN_SOFTIRQ)
-#define LOCKF_USED_IN_RECLAIM_FS        (1 << LOCK_USED_IN_RECLAIM_FS)
-#define LOCKF_ENABLED_HARDIRQ           (1 << LOCK_ENABLED_HARDIRQ)
-#define LOCKF_ENABLED_SOFTIRQ           (1 << LOCK_ENABLED_SOFTIRQ)
-#define LOCKF_ENABLED_RECLAIM_FS        (1 << LOCK_ENABLED_RECLAIM_FS)
+#define __LOCKF(__STATE)        LOCKF_##__STATE = (1 << LOCK_##__STATE),
+
+enum {
+#define LOCKDEP_STATE(__STATE)                                          \
+        __LOCKF(USED_IN_##__STATE)                                      \
+        __LOCKF(USED_IN_##__STATE##_READ)                               \
+        __LOCKF(ENABLED_##__STATE)                                      \
+        __LOCKF(ENABLED_##__STATE##_READ)
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+        __LOCKF(USED)
+};
 
 #define LOCKF_ENABLED_IRQ (LOCKF_ENABLED_HARDIRQ | LOCKF_ENABLED_SOFTIRQ)
 #define LOCKF_USED_IN_IRQ (LOCKF_USED_IN_HARDIRQ | LOCKF_USED_IN_SOFTIRQ)
 
-#define LOCKF_USED_IN_HARDIRQ_READ      (1 << LOCK_USED_IN_HARDIRQ_READ)
-#define LOCKF_USED_IN_SOFTIRQ_READ      (1 << LOCK_USED_IN_SOFTIRQ_READ)
-#define LOCKF_USED_IN_RECLAIM_FS_READ   (1 << LOCK_USED_IN_RECLAIM_FS_READ)
-#define LOCKF_ENABLED_HARDIRQ_READ      (1 << LOCK_ENABLED_HARDIRQ_READ)
-#define LOCKF_ENABLED_SOFTIRQ_READ      (1 << LOCK_ENABLED_SOFTIRQ_READ)
-#define LOCKF_ENABLED_RECLAIM_FS_READ   (1 << LOCK_ENABLED_RECLAIM_FS_READ)
-
 #define LOCKF_ENABLED_IRQ_READ \
                 (LOCKF_ENABLED_HARDIRQ_READ | LOCKF_ENABLED_SOFTIRQ_READ)
 #define LOCKF_USED_IN_IRQ_READ \