MINOR: pattern: make the pat_lru_seed read_mostly
This seed is created once at boot and is used in every LRU hash when
caching results. Let's mark it read_mostly.
diff --git a/src/pattern.c b/src/pattern.c
index e6892f6..252bd35 100644
--- a/src/pattern.c
+++ b/src/pattern.c
@@ -139,7 +139,7 @@
struct list pattern_reference = LIST_HEAD_INIT(pattern_reference);
static THREAD_LOCAL struct lru64_head *pat_lru_tree;
-static unsigned long long pat_lru_seed;
+static unsigned long long pat_lru_seed __read_mostly;
/*
*