From 2f6d7bb93c157b874efb79a2d1583a4c368bf89a Mon Sep 17 00:00:00 2001 From: Sirshak Das Date: Wed, 3 Oct 2018 22:53:51 +0000 Subject: vppinfra: add atomic macros for __sync builtins This is first part of addition of atomic macros with only macros for __sync builtins. - Based on earlier patch by Damjan (https://gerrit.fd.io/r/#/c/10729/) Additionally - clib_atomic_release macro added and used in the absence of any memory barrier. - clib_atomic_bool_cmp_and_swap added Change-Id: Ie4e48c1e184a652018d1d0d87c4be80ddd180a3b Original-patch-by: Damjan Marion Signed-off-by: Sirshak Das Reviewed-by: Honnappa Nagarahalli Reviewed-by: Ola Liljedahl Reviewed-by: Steve Capper --- src/vnet/ipfix-export/flow_report_classify.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/vnet/ipfix-export') diff --git a/src/vnet/ipfix-export/flow_report_classify.c b/src/vnet/ipfix-export/flow_report_classify.c index 8fb73fc0867..196cb725ffe 100644 --- a/src/vnet/ipfix-export/flow_report_classify.c +++ b/src/vnet/ipfix-export/flow_report_classify.c @@ -197,7 +197,7 @@ ipfix_classify_send_flows (flow_report_main_t * frm, t = pool_elt_at_index (vcm->tables, table->classify_table_index); - while (__sync_lock_test_and_set (t->writer_lock, 1)) + while (clib_atomic_test_and_set (t->writer_lock)) ; for (i = 0; i < t->nbuckets; i++) @@ -385,7 +385,7 @@ flush: bi0 = ~0; } - *(t->writer_lock) = 0; + clib_atomic_release (t->writer_lock); return f; } -- cgit 1.2.3-korg