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gve: Fix GFP flags when allocing pages

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[ Upstream commit a92f7a6feeb3884c69c1c7c1f13bccecb2228ad0 ]

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: f5cedc84a30d2 ("gve: Add transmit and receive support")
Signed-off-by: Catherine Sullivan <csully@google.com>
Signed-off-by: David Awogbemila <awogbemila@google.com>
Link: https://lore.kernel.org/r/20220126003843.3584521-1-awogbemila@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Shailend Chand 2022-09-12 17:09:01 -07:00 committed by Greg Kroah-Hartman
parent 8b424bdf6c
commit 77db87c4a4
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/google/gve/gve_rx_dqo.c
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@ -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;