[PATCH v2 14/17] dma-debug: Mark free_entries_lock as terminal

Waiman Long
2018-11-19T18:57:46Z

By making free_entries_lock a terminal spinlock, it reduces the lockdep
overhead when this lock is used.

Signed-off-by: Waiman Long <longman@redhat.com>
---
kernel/dma/debug.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c
index 231ca46..f891688 100644
--- a/kernel/dma/debug.c
+++ b/kernel/dma/debug.c
@@ -106,7 +106,7 @@ struct hash_bucket {
/* List of pre-allocated dma_debug_entry's */
static LIST_HEAD(free_entries);
/* Lock for the list above */
-static DEFINE_SPINLOCK(free_entries_lock);
+static DEFINE_TERMINAL_SPINLOCK(free_entries_lock);

/* Global disable flag - will be set in case of an error */
static bool global_disable __read_mostly;
--
1.8.3.1