diff options
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 17 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/fm10k/fm10k_main.c | 13 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_txrx.c | 15 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/iavf/iavf_txrx.c | 15 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_txrx.c | 13 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 9 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_main.c | 9 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 9 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 9 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 7 | ||||
| -rw-r--r-- | include/linux/mm.h | 2 | ||||
| -rw-r--r-- | include/linux/skbuff.h | 20 | ||||
| -rw-r--r-- | net/core/page_pool.c | 14 |
13 files changed, 46 insertions, 106 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 512080640cbc..f39f5b1c4cec 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -2800,12 +2800,6 @@ static void hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring, writel(i, ring->tqp->io_base + HNS3_RING_RX_RING_HEAD_REG); } -static bool hns3_page_is_reusable(struct page *page) -{ - return page_to_nid(page) == numa_mem_id() && - !page_is_pfmemalloc(page); -} - static bool hns3_can_reuse_page(struct hns3_desc_cb *cb) { return (page_count(cb->priv) - cb->pagecnt_bias) == 1; @@ -2823,10 +2817,11 @@ static void hns3_nic_reuse_page(struct sk_buff *skb, int i, skb_add_rx_frag(skb, i, desc_cb->priv, desc_cb->page_offset + pull_len, size - pull_len, truesize); - /* Avoid re-using remote pages, or the stack is still using the page - * when page_offset rollback to zero, flag default unreuse + /* Avoid re-using remote and pfmemalloc pages, or the stack is still + * using the page when page_offset rollback to zero, flag default + * unreuse */ - if (unlikely(!hns3_page_is_reusable(desc_cb->priv)) || + if (!dev_page_is_reusable(desc_cb->priv) || (!desc_cb->page_offset && !hns3_can_reuse_page(desc_cb))) { __page_frag_cache_drain(desc_cb->priv, desc_cb->pagecnt_bias); return; @@ -3083,8 +3078,8 @@ static int hns3_alloc_skb(struct hns3_enet_ring *ring, unsigned int length, if (length <= HNS3_RX_HEAD_SIZE) { memcpy(__skb_put(skb, length), va, ALIGN(length, sizeof(long))); - /* We can reuse buffer as-is, just make sure it is local */ - if (likely(hns3_page_is_reusable(desc_cb->priv))) + /* We can reuse buffer as-is, just make sure it is reusable */ + if (dev_page_is_reusable(desc_cb->priv)) desc_cb->reuse_flag = 1; else /* This page cannot be reused so discard it */ __page_frag_cache_drain(desc_cb->priv, diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_main.c b/drivers/net/ethernet/intel/fm10k/fm10k_main.c index 99b8252eb969..247f44f4cb30 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_main.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_main.c @@ -194,17 +194,12 @@ static void fm10k_reuse_rx_page(struct fm10k_ring *rx_ring, DMA_FROM_DEVICE); } -static inline bool fm10k_page_is_reserved(struct page *page) -{ - return (page_to_nid(page) != numa_mem_id()) || page_is_pfmemalloc(page); -} - static bool fm10k_can_reuse_rx_page(struct fm10k_rx_buffer *rx_buffer, struct page *page, unsigned int __maybe_unused truesize) { - /* avoid re-using remote pages */ - if (unlikely(fm10k_page_is_reserved(page))) + /* avoid re-using remote and pfmemalloc pages */ + if (!dev_page_is_reusable(page)) return false; #if (PAGE_SIZE < 8192) @@ -265,8 +260,8 @@ static bool fm10k_add_rx_frag(struct fm10k_rx_buffer *rx_buffer, if (likely(size <= FM10K_RX_HDR_LEN)) { memcpy(__skb_put(skb, size), va, ALIGN(size, sizeof(long))); - /* page is not reserved, we can reuse buffer as-is */ - if (likely(!fm10k_page_is_reserved(page))) + /* page is reusable, we can reuse buffer as-is */ + if (dev_page_is_reusable(page)) return true; /* this page cannot be reused so discard it */ diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 2574e78f7597..8d2ea4293d69 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -1844,19 +1844,6 @@ static bool i40e_cleanup_headers(struct i40e_ring *rx_ring, struct sk_buff *skb, } /** - * i40e_page_is_reusable - check if any reuse is possible - * @page: page struct to check - * - * A page is not reusable if it was allocated under low memory - * conditions, or it's not in the same NUMA node as this CPU. - */ -static inline bool i40e_page_is_reusable(struct page *page) -{ - return (page_to_nid(page) == numa_mem_id()) && - !page_is_pfmemalloc(page); -} - -/** * i40e_can_reuse_rx_page - Determine if this page can be reused by * the adapter for another receive * @@ -1891,7 +1878,7 @@ static bool i40e_can_reuse_rx_page(struct i40e_rx_buffer *rx_buffer, struct page *page = rx_buffer->page; /* Is any reuse possible? */ - if (unlikely(!i40e_page_is_reusable(page))) + if (!dev_page_is_reusable(page)) return false; #if (PAGE_SIZE < 8192) diff --git a/drivers/net/ethernet/intel/iavf/iavf_txrx.c b/drivers/net/ethernet/intel/iavf/iavf_txrx.c index 256fa07d54d5..ffaf2742a2e0 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_txrx.c +++ b/drivers/net/ethernet/intel/iavf/iavf_txrx.c @@ -1142,19 +1142,6 @@ static void iavf_reuse_rx_page(struct iavf_ring *rx_ring, } /** - * iavf_page_is_reusable - check if any reuse is possible - * @page: page struct to check - * - * A page is not reusable if it was allocated under low memory - * conditions, or it's not in the same NUMA node as this CPU. - */ -static inline bool iavf_page_is_reusable(struct page *page) -{ - return (page_to_nid(page) == numa_mem_id()) && - !page_is_pfmemalloc(page); -} - -/** * iavf_can_reuse_rx_page - Determine if this page can be reused by * the adapter for another receive * @@ -1187,7 +1174,7 @@ static bool iavf_can_reuse_rx_page(struct iavf_rx_buffer *rx_buffer) struct page *page = rx_buffer->page; /* Is any reuse possible? */ - if (unlikely(!iavf_page_is_reusable(page))) + if (!dev_page_is_reusable(page)) return false; #if (PAGE_SIZE < 8192) diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index 2c2de56e2824..8ca63c6a6ba4 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -729,15 +729,6 @@ bool ice_alloc_rx_bufs(struct ice_ring *rx_ring, u16 cleaned_count) } /** - * ice_page_is_reserved - check if reuse is possible - * @page: page struct to check - */ -static bool ice_page_is_reserved(struct page *page) -{ - return (page_to_nid(page) != numa_mem_id()) || page_is_pfmemalloc(page); -} - -/** * ice_rx_buf_adjust_pg_offset - Prepare Rx buffer for reuse * @rx_buf: Rx buffer to adjust * @size: Size of adjustment @@ -775,8 +766,8 @@ ice_can_reuse_rx_page(struct ice_rx_buf *rx_buf, int rx_buf_pgcnt) unsigned int pagecnt_bias = rx_buf->pagecnt_bias; struct page *page = rx_buf->page; - /* avoid re-using remote pages */ - if (unlikely(ice_page_is_reserved(page))) + /* avoid re-using remote and pfmemalloc pages */ + if (!dev_page_is_reusable(page)) return false; #if (PAGE_SIZE < 8192) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 84d4284b8b32..7d8e02b4d092 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -8215,18 +8215,13 @@ static void igb_reuse_rx_page(struct igb_ring *rx_ring, new_buff->pagecnt_bias = old_buff->pagecnt_bias; } -static inline bool igb_page_is_reserved(struct page *page) -{ - return (page_to_nid(page) != numa_mem_id()) || page_is_pfmemalloc(page); -} - static bool igb_can_reuse_rx_page(struct igb_rx_buffer *rx_buffer) { unsigned int pagecnt_bias = rx_buffer->pagecnt_bias; struct page *page = rx_buffer->page; - /* avoid re-using remote pages */ - if (unlikely(igb_page_is_reserved(page))) + /* avoid re-using remote and pfmemalloc pages */ + if (!dev_page_is_reusable(page)) return false; #if (PAGE_SIZE < 8192) diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index 43aec42e6d9d..ae0de7f08568 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -1648,18 +1648,13 @@ static void igc_reuse_rx_page(struct igc_ring *rx_ring, new_buff->pagecnt_bias = old_buff->pagecnt_bias; } -static inline bool igc_page_is_reserved(struct page *page) -{ - return (page_to_nid(page) != numa_mem_id()) || page_is_pfmemalloc(page); -} - static bool igc_can_reuse_rx_page(struct igc_rx_buffer *rx_buffer) { unsigned int pagecnt_bias = rx_buffer->pagecnt_bias; struct page *page = rx_buffer->page; - /* avoid re-using remote pages */ - if (unlikely(igc_page_is_reserved(page))) + /* avoid re-using remote and pfmemalloc pages */ + if (!dev_page_is_reusable(page)) return false; #if (PAGE_SIZE < 8192) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index e08c01525fd2..237e09342f28 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -1940,19 +1940,14 @@ static void ixgbe_reuse_rx_page(struct ixgbe_ring *rx_ring, new_buff->pagecnt_bias = old_buff->pagecnt_bias; } -static inline bool ixgbe_page_is_reserved(struct page *page) -{ - return (page_to_nid(page) != numa_mem_id()) || page_is_pfmemalloc(page); -} - static bool ixgbe_can_reuse_rx_page(struct ixgbe_rx_buffer *rx_buffer, int rx_buffer_pgcnt) { unsigned int pagecnt_bias = rx_buffer->pagecnt_bias; struct page *page = rx_buffer->page; - /* avoid re-using remote pages */ - if (unlikely(ixgbe_page_is_reserved(page))) + /* avoid re-using remote and pfmemalloc pages */ + if (!dev_page_is_reusable(page)) return false; #if (PAGE_SIZE < 8192) diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index a14e55e7fce8..449d7d5b280d 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -781,18 +781,13 @@ static void ixgbevf_reuse_rx_page(struct ixgbevf_ring *rx_ring, new_buff->pagecnt_bias = old_buff->pagecnt_bias; } -static inline bool ixgbevf_page_is_reserved(struct page *page) -{ - return (page_to_nid(page) != numa_mem_id()) || page_is_pfmemalloc(page); -} - static bool ixgbevf_can_reuse_rx_page(struct ixgbevf_rx_buffer *rx_buffer) { unsigned int pagecnt_bias = rx_buffer->pagecnt_bias; struct page *page = rx_buffer->page; - /* avoid re-using remote pages */ - if (unlikely(ixgbevf_page_is_reserved(page))) + /* avoid re-using remote and pfmemalloc pages */ + if (!dev_page_is_reusable(page)) return false; #if (PAGE_SIZE < 8192) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c index 50723e5fb085..4de5a97ceac6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c @@ -213,11 +213,6 @@ static inline u32 mlx5e_decompress_cqes_start(struct mlx5e_rq *rq, return mlx5e_decompress_cqes_cont(rq, wq, 1, budget_rem) - 1; } -static inline bool mlx5e_page_is_reserved(struct page *page) -{ - return page_is_pfmemalloc(page) || page_to_nid(page) != numa_mem_id(); -} - static inline bool mlx5e_rx_cache_put(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info) { @@ -230,7 +225,7 @@ static inline bool mlx5e_rx_cache_put(struct mlx5e_rq *rq, return false; } - if (unlikely(mlx5e_page_is_reserved(dma_info->page))) { + if (!dev_page_is_reusable(dma_info->page)) { stats->cache_waive++; return false; } diff --git a/include/linux/mm.h b/include/linux/mm.h index ecdf8a8cd6ae..078633d43af9 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1584,7 +1584,7 @@ struct address_space *page_mapping_file(struct page *page); * ALLOC_NO_WATERMARKS and the low watermark was not * met implying that the system is under some pressure. */ -static inline bool page_is_pfmemalloc(struct page *page) +static inline bool page_is_pfmemalloc(const struct page *page) { /* * Page index cannot be this large so this must be diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 9313b5aaf45b..0e42c53b8ca9 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -2939,12 +2939,28 @@ static inline struct page *dev_alloc_page(void) } /** + * dev_page_is_reusable - check whether a page can be reused for network Rx + * @page: the page to test + * + * A page shouldn't be considered for reusing/recycling if it was allocated + * under memory pressure or at a distant memory node. + * + * Returns false if this page should be returned to page allocator, true + * otherwise. + */ +static inline bool dev_page_is_reusable(const struct page *page) +{ + return likely(page_to_nid(page) == numa_mem_id() && + !page_is_pfmemalloc(page)); +} + +/** * skb_propagate_pfmemalloc - Propagate pfmemalloc if skb is allocated after RX page * @page: The page that was allocated from skb_alloc_page * @skb: The skb that may need pfmemalloc set */ -static inline void skb_propagate_pfmemalloc(struct page *page, - struct sk_buff *skb) +static inline void skb_propagate_pfmemalloc(const struct page *page, + struct sk_buff *skb) { if (page_is_pfmemalloc(page)) skb->pfmemalloc = true; diff --git a/net/core/page_pool.c b/net/core/page_pool.c index f3c690b8c8e3..ad8b0707af04 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -350,14 +350,6 @@ static bool page_pool_recycle_in_cache(struct page *page, return true; } -/* page is NOT reusable when: - * 1) allocated when system is under some pressure. (page_is_pfmemalloc) - */ -static bool pool_page_reusable(struct page_pool *pool, struct page *page) -{ - return !page_is_pfmemalloc(page); -} - /* If the page refcnt == 1, this will try to recycle the page. * if PP_FLAG_DMA_SYNC_DEV is set, we'll try to sync the DMA area for * the configured size min(dma_sync_size, pool->max_len). @@ -373,9 +365,11 @@ __page_pool_put_page(struct page_pool *pool, struct page *page, * regular page allocator APIs. * * refcnt == 1 means page_pool owns page, and can recycle it. + * + * page is NOT reusable when allocated when system is under + * some pressure. (page_is_pfmemalloc) */ - if (likely(page_ref_count(page) == 1 && - pool_page_reusable(pool, page))) { + if (likely(page_ref_count(page) == 1 && !page_is_pfmemalloc(page))) { /* Read barrier done in page_ref_count / READ_ONCE */ if (pool->p.flags & PP_FLAG_DMA_SYNC_DEV) |