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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-01-27 13:58:08 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-14 23:28:17 +0100 |
| commit | cf2ad4d13c4ac6366c730fcf6c6be00db12fb75f (patch) | |
| tree | 869cc14ff8790e1e3d90750cacbe24aeb0c372d9 /kernel | |
| parent | 9d3651a23dc1f7ed7d207f9118459d3a73d485a7 (diff) | |
| download | lwn-cf2ad4d13c4ac6366c730fcf6c6be00db12fb75f.tar.gz lwn-cf2ad4d13c4ac6366c730fcf6c6be00db12fb75f.zip | |
lockdep: remove macro usage from mark_held_locks()
Now that we have nice numerical relations for the states, remove the macro
magics.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/lockdep.c | 20 |
1 files changed, 5 insertions, 15 deletions
diff --git a/kernel/lockdep.c b/kernel/lockdep.c index 000d53a2da32..f40d916c191c 100644 --- a/kernel/lockdep.c +++ b/kernel/lockdep.c @@ -2099,14 +2099,6 @@ enum mark_type { #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: */ @@ -2120,13 +2112,11 @@ mark_held_locks(struct task_struct *curr, enum mark_type mark) for (i = 0; i < curr->lockdep_depth; i++) { hlock = curr->held_locks + i; - switch (mark) { -#define LOCKDEP_STATE(__STATE) MARK_HELD_CASE(__STATE) -#include "lockdep_states.h" -#undef LOCKDEP_STATE - default: - BUG(); - } + usage_bit = 2 + (mark << 2); /* ENABLED */ + if (hlock->read) + usage_bit += 1; /* READ */ + + BUG_ON(usage_bit >= LOCK_USAGE_STATES); if (!mark_lock(curr, hlock, usage_bit)) return 0; |