[PATCH v2 10/17] lib/stackdepot: Make depot_lock a terminal spinlock

Waiman Long
2018-11-19T18:57:40Z

By defining depot_lock as a terminal spinlock, it reduces the
lockdep overhead when this lock is being used.

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

diff --git a/lib/stackdepot.c b/lib/stackdepot.c
index e513459..fb17888 100644
--- a/lib/stackdepot.c
+++ b/lib/stackdepot.c
@@ -78,7 +78,7 @@ struct stack_record {
static int depot_index;
static int next_slab_inited;
static size_t depot_offset;
-static DEFINE_SPINLOCK(depot_lock);
+static DEFINE_TERMINAL_SPINLOCK(depot_lock);

static bool init_stack_slab(void **prealloc)
{
--
1.8.3.1