diff options
| author |   Christian Ehrhardt <christian.ehrhardt@canonical.com> | 2019-07-04 10:40:06 +0200 |
|---|---|---|
| committer | Christian Ehrhardt <christian.ehrhardt@canonical.com> | 2019-07-04 10:48:05 +0200 |
| commit | 8d53e9f3c6001dcb2865f6e894da5b54e1418f88 (patch) | |
| tree | 63907f21c13636a987d43463c675d0727a04e327 /lib/librte_ring/rte_ring_generic.h | |
| parent | e2bea7436061ca2e7e14bfcfdc5870f2555c3965 (diff) | |
New upstream version 18.11.2upstream-18.11-stable
Change-Id: I23eb4f9179abf1f9c659891f8fddb27ee68ad26b
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Diffstat (limited to 'lib/librte_ring/rte_ring_generic.h')
| -rw-r--r-- | lib/librte_ring/rte_ring_generic.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/librte_ring/rte_ring_generic.h b/lib/librte_ring/rte_ring_generic.h index ea7dbe5b..953cdbbd 100644 --- a/lib/librte_ring/rte_ring_generic.h +++ b/lib/librte_ring/rte_ring_generic.h @@ -158,11 +158,14 @@ __rte_ring_move_cons_head(struct rte_ring *r, unsigned int is_sc, return 0; *new_head = *old_head + n; - if (is_sc) - r->cons.head = *new_head, success = 1; - else + if (is_sc) { + r->cons.head = *new_head; + rte_smp_rmb(); + success = 1; + } else { success = rte_atomic32_cmpset(&r->cons.head, *old_head, *new_head); + } } while (unlikely(success == 0)); return n; } |