pg_stat_kcache.patch

diff --git a/pg_stat_kcache.c b/pg_stat_kcache.c
index 63fb4ec..0328209 100644
--- a/pg_stat_kcache.c
+++ b/pg_stat_kcache.c
@@ -152,7 +152,7 @@ _PG_init(void)
     * Define (or redefine) custom GUC variables.
     */
    RequestAddinShmemSpace(pgsk_memsize());
-   RequestAddinLWLocks(1);
+   RequestNamedLWLockTranche("pg_stat_kcache", 1);

    /* Install hook */
    prev_shmem_startup_hook = shmem_startup_hook;
@@ -200,7 +200,7 @@ pgsk_shmem_startup(void)
    if (!found)
    {
        /* First time through ... */
-       pgsk->lock = LWLockAssign();
+       pgsk->lock = &(GetNamedLWLockTranche("pg_stat_kcache"))->lock;;
    }

    /* retrieve pg_stat_statements.max */