lock: Add additional lock auditing code

Keep track of lock owner name and replace lock_depth counter
with a per-cpu list of locks held by the cpu.

This allows us to print the actual locks held in case we hit
the (in)famous message about opal_pollers being run with a
lock held.

It also allows us to warn (and drop them) if locks are still
held when returning to the OS or completing a scheduled job.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
[stewart: fix unit tests]
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/hdata/test/stubs.c b/hdata/test/stubs.c
index abeb832d..92098bfa 100644
--- a/hdata/test/stubs.c
+++ b/hdata/test/stubs.c
@@ -109,7 +109,7 @@ static bool false_stub(void) { return false; }
 #define NOOP_STUB FALSE_STUB
 
 TRUE_STUB(lock_held_by_me);
-NOOP_STUB(lock);
+NOOP_STUB(lock_caller);
 NOOP_STUB(unlock);
 NOOP_STUB(early_uart_init);
 NOOP_STUB(mem_reserve_fw);