diff options
| author | Ingo Molnar <mingo@elte.hu> | 2006-12-13 00:34:42 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-13 09:05:50 -0800 |
| commit | 27c3b23226fc649de47e4886ccbf994482f388ba (patch) | |
| tree | 43b0da769b52a709f2f408c8dc791a70fe9fc9fe /kernel | |
| parent | 33e94e960b57497fe7fd9493080210b6d87e88e6 (diff) | |
| download | linux-rt-27c3b23226fc649de47e4886ccbf994482f388ba.tar.gz | |
[PATCH] lockdep: use chain hash on CONFIG_DEBUG_LOCKDEP too
CONFIG_DEBUG_LOCKDEP is unacceptably slow because it does not utilize
the chain-hash. Turn the chain-hash back on in this case too.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/lockdep.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/kernel/lockdep.c b/kernel/lockdep.c index c4ffd3c1dec4..69e92c6b0472 100644 --- a/kernel/lockdep.c +++ b/kernel/lockdep.c @@ -1276,14 +1276,6 @@ static inline int lookup_chain_cache(u64 chain_key, struct lock_class *class) if (chain->chain_key == chain_key) { cache_hit: debug_atomic_inc(&chain_lookup_hits); - /* - * In the debugging case, force redundant checking - * by returning 1: - */ -#ifdef CONFIG_DEBUG_LOCKDEP - __raw_spin_lock(&hash_lock); - return 1; -#endif if (very_verbose(class)) printk("\nhash chain already cached, key: %016Lx tail class: [%p] %s\n", chain_key, class->key, class->name); return 0; |