diff options
Diffstat (limited to 'net/xdp/xsk_buff_pool.c')
| -rw-r--r-- | net/xdp/xsk_buff_pool.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/net/xdp/xsk_buff_pool.c b/net/xdp/xsk_buff_pool.c index c0e0204b9630..dad7849c1b75 100644 --- a/net/xdp/xsk_buff_pool.c +++ b/net/xdp/xsk_buff_pool.c @@ -656,9 +656,17 @@ EXPORT_SYMBOL(xp_alloc_batch); bool xp_can_alloc(struct xsk_buff_pool *pool, u32 count) { + u32 req_count, avail_count; + if (pool->free_list_cnt >= count) return true; - return xskq_cons_has_entries(pool->fq, count - pool->free_list_cnt); + + req_count = count - pool->free_list_cnt; + avail_count = xskq_cons_nb_entries(pool->fq, req_count); + if (!avail_count) + pool->fq->queue_empty_descs++; + + return avail_count >= req_count; } EXPORT_SYMBOL(xp_can_alloc); |