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authorIngo Molnar <mingo@elte.hu>2006-12-13 00:34:40 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-13 09:05:50 -0800
commit23d95a03d63eff25118b50737006ce6e7c1b8def (patch)
treefaae8f9f9e7d7f93e55ed71fa801239e49dcf9fe /kernel
parent81fc685a898f84d0787eeebb1c118de0bd3484a0 (diff)
[PATCH] lockdep: improve lockdep_reset()
Clear all the chains during lockdep_reset(). This fixes some locking-selftest false positives i saw on -rt. (never saw those on mainline though, but it could happen.) 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.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 5ba2825bd46..77fa791f6f3 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -2437,6 +2437,7 @@ EXPORT_SYMBOL_GPL(lock_release);
void lockdep_reset(void)
{
unsigned long flags;
+ int i;
raw_local_irq_save(flags);
current->curr_chain_key = 0;
@@ -2447,6 +2448,8 @@ void lockdep_reset(void)
nr_softirq_chains = 0;
nr_process_chains = 0;
debug_locks = 1;
+ for (i = 0; i < CHAINHASH_SIZE; i++)
+ INIT_LIST_HEAD(chainhash_table + i);
raw_local_irq_restore(flags);
}