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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-01-22 14:12:41 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-14 23:27:56 +0100 |
| commit | 36bfb9bb03db2002a8574600c6aeb4cdd1ba01a6 (patch) | |
| tree | 6e824e262cb857eba106aecb449bdb3c5fc9cbdc /kernel/lockdep.c | |
| parent | 9fe51abf7a1c787f918f66fa3cef9cd0cedb3791 (diff) | |
| download | lwn-36bfb9bb03db2002a8574600c6aeb4cdd1ba01a6.tar.gz lwn-36bfb9bb03db2002a8574600c6aeb4cdd1ba01a6.zip | |
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>
Diffstat (limited to 'kernel/lockdep.c')
| -rw-r--r-- | kernel/lockdep.c | 38 |
1 files changed, 14 insertions, 24 deletions
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(); } |