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

Message ID 1542653726-5655-11-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 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(-)
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Patch

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)
 {