diff options
Diffstat (limited to 'net/xdp/xsk_queue.h')
| -rw-r--r-- | net/xdp/xsk_queue.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/net/xdp/xsk_queue.h b/net/xdp/xsk_queue.h index a2f0ba65559f..b28f9da7b317 100644 --- a/net/xdp/xsk_queue.h +++ b/net/xdp/xsk_queue.h @@ -362,12 +362,15 @@ static inline void xskq_produce_flush_desc(struct xsk_queue *q) static inline bool xskq_full_desc(struct xsk_queue *q) { - return xskq_nb_avail(q, q->nentries) == q->nentries; + /* No barriers needed since data is not accessed */ + return READ_ONCE(q->ring->producer) - READ_ONCE(q->ring->consumer) == + q->nentries; } static inline bool xskq_empty_desc(struct xsk_queue *q) { - return xskq_nb_free(q, q->prod_tail, q->nentries) == q->nentries; + /* No barriers needed since data is not accessed */ + return READ_ONCE(q->ring->consumer) == READ_ONCE(q->ring->producer); } void xskq_set_umem(struct xsk_queue *q, u64 size, u64 chunk_mask); |