Commit 23d95a03 authored by Ingo Molnar's avatar Ingo Molnar Committed by Linus Torvalds

[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: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 81fc685a
No related merge requests found
...@@ -2437,6 +2437,7 @@ EXPORT_SYMBOL_GPL(lock_release); ...@@ -2437,6 +2437,7 @@ EXPORT_SYMBOL_GPL(lock_release);
void lockdep_reset(void) void lockdep_reset(void)
{ {
unsigned long flags; unsigned long flags;
int i;
raw_local_irq_save(flags); raw_local_irq_save(flags);
current->curr_chain_key = 0; current->curr_chain_key = 0;
...@@ -2447,6 +2448,8 @@ void lockdep_reset(void) ...@@ -2447,6 +2448,8 @@ void lockdep_reset(void)
nr_softirq_chains = 0; nr_softirq_chains = 0;
nr_process_chains = 0; nr_process_chains = 0;
debug_locks = 1; debug_locks = 1;
for (i = 0; i < CHAINHASH_SIZE; i++)
INIT_LIST_HEAD(chainhash_table + i);
raw_local_irq_restore(flags); raw_local_irq_restore(flags);
} }
......
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