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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-01-22 14:38:38 +0100
committerIngo Molnar <mingo@elte.hu>2009-02-14 23:28:01 +0100
commitd7b1b02134272840f4b655136e00c461e1cf1d53 (patch)
tree9bb71dbfbc5155cfab9829716c2b9b01cf2a76ed /kernel/lockdep_internals.h
parentlockdep: move state bit definitions around (diff)
downloadlinux-d7b1b02134272840f4b655136e00c461e1cf1d53.tar.xz
linux-d7b1b02134272840f4b655136e00c461e1cf1d53.zip
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>
Diffstat (limited to 'kernel/lockdep_internals.h')
-rw-r--r--kernel/lockdep_internals.h47
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 \