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