From 8ccac4edc8da764389d4fc18b1df740892006557 Mon Sep 17 00:00:00 2001
From: Shailend Chand <shailend@google.com>
Date: Mon, 12 Sep 2022 17:09:01 -0700
Subject: [PATCH] gve: Fix GFP flags when allocing pages
Git-commit: 8ccac4edc8da764389d4fc18b1df740892006557
Patch-mainline: v6.0-rc7
References: git-fixes

Use GFP_ATOMIC when allocating pages out of the hotpath,
continue to use GFP_KERNEL when allocating pages during setup.

GFP_KERNEL will allow blocking which allows it to succeed
more often in a low memory enviornment but in the hotpath we do
not want to allow the allocation to block.

Fixes: 9b8dd5e5ea48b ("gve: DQO: Add RX path")
Signed-off-by: Shailend Chand <shailend@google.com>
Signed-off-by: Jeroen de Borst <jeroendb@google.com>
Link: https://lore.kernel.org/r/20220913000901.959546-1-jeroendb@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/ethernet/google/gve/gve_rx_dqo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/google/gve/gve_rx_dqo.c b/drivers/net/ethernet/google/gve/gve_rx_dqo.c
index 8c939628e2d8..2e6461b0ea8b 100644
--- a/drivers/net/ethernet/google/gve/gve_rx_dqo.c
+++ b/drivers/net/ethernet/google/gve/gve_rx_dqo.c
@@ -157,7 +157,7 @@ static int gve_alloc_page_dqo(struct gve_priv *priv,
 	int err;
 
 	err = gve_alloc_page(priv, &priv->pdev->dev, &buf_state->page_info.page,
-			     &buf_state->addr, DMA_FROM_DEVICE, GFP_KERNEL);
+			     &buf_state->addr, DMA_FROM_DEVICE, GFP_ATOMIC);
 	if (err)
 		return err;
 
-- 
2.35.3