From: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
To: netdev@vger.kernel.org, Yishai Hadas <yishaih@mellanox.com>,
Eugenia Emantayev <eugenia@mellanox.com>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] net/mlx4_en: allocate non 0-order pages for RX ring with __GFP_NOMEMALLOC
Date: Mon, 18 Apr 2016 14:33:54 +0300 [thread overview]
Message-ID: <146097923460.15114.8965134124148581055.stgit@buzz> (raw)
High order pages are optional here since commit 51151a16a60f ("mlx4: allow
order-0 memory allocations in RX path"), so here is no reason for depleting
reserves. Generic __netdev_alloc_frag() implements the same logic.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
---
drivers/net/ethernet/mellanox/mlx4/en_rx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 86bcfe510e4e..56d070d9cf01 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -61,7 +61,7 @@ static int mlx4_alloc_pages(struct mlx4_en_priv *priv,
gfp_t gfp = _gfp;
if (order)
- gfp |= __GFP_COMP | __GFP_NOWARN;
+ gfp |= __GFP_COMP | __GFP_NOWARN | __GFP_NOMEMALLOC;
page = alloc_pages(gfp, order);
if (likely(page))
break;
next reply other threads:[~2016-04-18 11:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-18 11:33 Konstantin Khlebnikov [this message]
2016-04-18 12:12 ` [PATCH] net/mlx4_en: allocate non 0-order pages for RX ring with __GFP_NOMEMALLOC Eric Dumazet
2016-04-20 0:07 ` David Miller
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