diff mbox series

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

Message ID 1542653726-5655-15-git-send-email-longman@redhat.com (mailing list archive)
State New, archived
Headers show
Series locking/lockdep: Add a new class of terminal locks | expand

Commit Message

Waiman Long Nov. 19, 2018, 6:55 p.m. UTC 
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 mbox series

Patch

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;