diff options
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/page_pool.c | 8 | ||||
| -rw-r--r-- | net/core/xdp.c | 3 |
2 files changed, 11 insertions, 0 deletions
diff --git a/net/core/page_pool.c b/net/core/page_pool.c index b366f59885c1..3272dc7a8c81 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -49,6 +49,9 @@ static int page_pool_init(struct page_pool *pool, atomic_set(&pool->pages_state_release_cnt, 0); + /* Driver calling page_pool_create() also call page_pool_destroy() */ + refcount_set(&pool->user_cnt, 1); + if (pool->p.flags & PP_FLAG_DMA_MAP) get_device(pool->p.dev); @@ -70,6 +73,7 @@ struct page_pool *page_pool_create(const struct page_pool_params *params) kfree(pool); return ERR_PTR(err); } + return pool; } EXPORT_SYMBOL(page_pool_create); @@ -356,6 +360,10 @@ static void __warn_in_flight(struct page_pool *pool) void __page_pool_free(struct page_pool *pool) { + /* Only last user actually free/release resources */ + if (!page_pool_put(pool)) + return; + WARN(pool->alloc.count, "API usage violation"); WARN(!ptr_ring_empty(&pool->ring), "ptr_ring is not empty"); diff --git a/net/core/xdp.c b/net/core/xdp.c index 829377cc83db..d7bf62ffbb5e 100644 --- a/net/core/xdp.c +++ b/net/core/xdp.c @@ -370,6 +370,9 @@ int xdp_rxq_info_reg_mem_model(struct xdp_rxq_info *xdp_rxq, goto err; } + if (type == MEM_TYPE_PAGE_POOL) + page_pool_get(xdp_alloc->page_pool); + mutex_unlock(&mem_id_lock); trace_mem_connect(xdp_alloc, xdp_rxq); |