From f25e7cfa5c615e1972d5823b65ca579f951d68a5 Mon Sep 17 00:00:00 2001 From: jaszha03 Date: Wed, 12 Jun 2019 16:01:19 -0500 Subject: vppinfra: refactor use of CLIB_MEMORY_BARRIER () All instances of test_and_set locks used the following sequence to release the locks: CLIB_MEMORY_BARRIER (); p->lock = 0; // p is a generic struct with a TAS lock Use clib_atomic_release to generate more efficient assembly code. Type: refactor Change-Id: Idca3a38b1cf43578108bdd1afe83b6ebc17a4c68 Signed-off-by: Jason Zhang Reviewed-by: Honnappa Nagarahalli Reviewed-by: Lijian Zhang --- src/plugins/map/map.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/plugins/map/map.h') diff --git a/src/plugins/map/map.h b/src/plugins/map/map.h index d96c7b88cb7..6dc5232bf43 100644 --- a/src/plugins/map/map.h +++ b/src/plugins/map/map.h @@ -503,7 +503,7 @@ void map_ip4_reass_free(map_ip4_reass_t *r, u32 **pi_to_drop); #define map_ip4_reass_lock() while (clib_atomic_test_and_set (map_main.ip4_reass_lock)) { CLIB_PAUSE (); } -#define map_ip4_reass_unlock() do {CLIB_MEMORY_BARRIER(); *map_main.ip4_reass_lock = 0;} while(0) +#define map_ip4_reass_unlock() clib_atomic_release (map_main.ip4_reass_lock) static_always_inline void map_ip4_reass_get_fragments(map_ip4_reass_t *r, u32 **pi) @@ -528,7 +528,7 @@ void map_ip6_reass_free(map_ip6_reass_t *r, u32 **pi_to_drop); #define map_ip6_reass_lock() while (clib_atomic_test_and_set (map_main.ip6_reass_lock)) { CLIB_PAUSE (); } -#define map_ip6_reass_unlock() do {CLIB_MEMORY_BARRIER(); *map_main.ip6_reass_lock = 0;} while(0) +#define map_ip6_reass_unlock() clib_atomic_release (map_main.ip6_reass_lock) int map_ip6_reass_add_fragment(map_ip6_reass_t *r, u32 pi, -- cgit 1.2.3-korg