X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=drivers%2Fnet%2Fethernet%2Fmellanox%2Fmlx4%2Fen_rx.c;h=c8e75dab80553c876b195361456fb49587231055;hb=c2a3d4b4cac1a9ad0547b0807e118cb34885dbd5;hp=a33048ee9621a360060fed128d6f048faf53ea42;hpb=41e46ac0fae9583d81e6b148329fec627d192181;p=cascardo%2Flinux.git

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index a33048ee9621..c8e75dab8055 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -76,10 +76,10 @@ static int mlx4_alloc_pages(struct mlx4_en_priv *priv,
 	page_alloc->dma = dma;
 	page_alloc->page_offset = frag_info->frag_align;
 	/* Not doing get_page() for each frag is a big win
-	 * on asymetric workloads.
+	 * on asymetric workloads. Note we can not use atomic_set().
 	 */
-	atomic_set(&page->_count,
-		   page_alloc->page_size / frag_info->frag_stride);
+	atomic_add(page_alloc->page_size / frag_info->frag_stride - 1,
+		   &page->_count);
 	return 0;
 }
 
@@ -119,7 +119,6 @@ static int mlx4_en_alloc_frags(struct mlx4_en_priv *priv,
 
 out:
 	while (i--) {
-		frag_info = &priv->frag_info[i];
 		if (page_alloc[i].page != ring_alloc[i].page) {
 			dma_unmap_page(priv->ddev, page_alloc[i].dma,
 				page_alloc[i].page_size, PCI_DMA_FROMDEVICE);