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authorjaszha03 <jason.zhang2@arm.com>2019-06-12 16:01:19 -0500
committerDave Barach <openvpp@barachs.net>2019-07-30 11:46:19 +0000
commit0455c435af501889de51c79a223883b3c2003b20 (patch)
treec869cd21043469888ee2a23e563e958ce05e3a96 /src/vnet/classify
parentd56550c2b669558aa38d93f44a9a3b31e0b9370f (diff)
vppinfra: conformed spinlocks to use CLIB_PAUSE
Modified test-and-set spin locks to call CLIB_PAUSE () when spinning for code consistency. Decreases the memory bandwidth consumed. Type: fix Change-Id: I1cca4f87f44f23f257c7a35466cd2e7767072f51 Signed-off-by: Jason Zhang <jason.zhang2@arm.com> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com> Reviewed-by: Lijian Zhang <Lijian.Zhang@arm.com>
Diffstat (limited to 'src/vnet/classify')
-rwxr-xr-xsrc/vnet/classify/vnet_classify.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/vnet/classify/vnet_classify.c b/src/vnet/classify/vnet_classify.c
index 90086f0e62f..64549a6e0d5 100755
--- a/src/vnet/classify/vnet_classify.c
+++ b/src/vnet/classify/vnet_classify.c
@@ -18,6 +18,7 @@
#include <vnet/api_errno.h> /* for API error numbers */
#include <vnet/l2/l2_classify.h> /* for L2_INPUT_CLASSIFY_NEXT_xxx */
#include <vnet/fib/fib_table.h>
+#include <vppinfra/lock.h>
vnet_classify_main_t vnet_classify_main;
@@ -447,7 +448,7 @@ vnet_classify_add_del (vnet_classify_table_t * t,
hash >>= t->log2_nbuckets;
while (clib_atomic_test_and_set (t->writer_lock))
- ;
+ CLIB_PAUSE ();
/* First elt in the bucket? */
if (b->offset == 0)