From 4eb561283276e4c59f30fb2e95415f55f2af8c25 Mon Sep 17 00:00:00 2001
From: Jan Musial <jan.musial@intel.com>
Date: Fri, 6 Mar 2020 12:35:01 +0100
Subject: [PATCH] Reorder fields in nhit_hash map to improve memory efficiency

Signed-off-by: Jan Musial <jan.musial@intel.com>
---
 src/promotion/nhit/nhit_hash.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/src/promotion/nhit/nhit_hash.c b/src/promotion/nhit/nhit_hash.c
index ea8fd23..59bc622 100644
--- a/src/promotion/nhit/nhit_hash.c
+++ b/src/promotion/nhit/nhit_hash.c
@@ -86,15 +86,13 @@
 #define HASH_PRIME 4099
 
 struct nhit_list_elem {
-	ocf_core_id_t core_id;
+	/* Fields are ordered for memory efficiency, not for looks. */
 	uint64_t core_lba;
-
+	env_atomic counter;
 	ocf_cache_line_t coll_prev;
 	ocf_cache_line_t coll_next;
-
+	ocf_core_id_t core_id;
 	bool valid;
-
-	env_atomic counter;
 };
 
 struct nhit_hash {