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Subject[PATCH v3 05/18] locking/lockdep: Print the right depth for chain key colission
Date
Since chains are separated by irq context, so when printing a chain the
depth should be consistent with it.

Signed-off-by: Yuyang Du <duyuyang@gmail.com>
---
kernel/locking/lockdep.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index eeea722..05c31d6 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -2428,10 +2428,11 @@ static u64 print_chain_key_iteration(int class_idx, u64 chain_key)
struct held_lock *hlock;
u64 chain_key = 0;
int depth = curr->lockdep_depth;
- int i;
+ int i = get_first_held_lock(curr, hlock_next);

- printk("depth: %u\n", depth + 1);
- for (i = get_first_held_lock(curr, hlock_next); i < depth; i++) {
+ printk("depth: %u (irq_context %u)\n", depth - i + 1,
+ hlock_next->irq_context);
+ for (; i < depth; i++) {
hlock = curr->held_locks + i;
chain_key = print_chain_key_iteration(hlock->class_idx, chain_key);

--
1.8.3.1
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