diff options
| author | Catherine Sullivan <csully@google.com> | 2022-01-26 03:38:43 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-02-01 19:27:14 +0300 |
| commit | 1ac025f24b89cfcb31184f8da8186c815c5f977c (patch) | |
| tree | dc2d804528ff3c577b2581e537dc8caae847cdea /drivers/net/ethernet/google | |
| parent | 35b092d3b57f47af50b6e5da77bb73fc4e66c704 (diff) | |
| download | linux-1ac025f24b89cfcb31184f8da8186c815c5f977c.tar.xz | |
gve: Fix GFP flags when allocing pages
[ 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>
Diffstat (limited to 'drivers/net/ethernet/google')
| -rw-r--r-- | drivers/net/ethernet/google/gve/gve.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/google/gve/gve_main.c | 6 | ||||
| -rw-r--r-- | drivers/net/ethernet/google/gve/gve_rx.c | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/google/gve/gve_rx_dqo.c | 2 |
4 files changed, 7 insertions, 6 deletions
diff --git a/drivers/net/ethernet/google/gve/gve.h b/drivers/net/ethernet/google/gve/gve.h index c1d4042671f9..b1273dce4795 100644 --- a/drivers/net/ethernet/google/gve/gve.h +++ b/drivers/net/ethernet/google/gve/gve.h @@ -815,7 +815,7 @@ static inline bool gve_is_gqi(struct gve_priv *priv) /* buffers */ int gve_alloc_page(struct gve_priv *priv, struct device *dev, struct page **page, dma_addr_t *dma, - enum dma_data_direction); + enum dma_data_direction, gfp_t gfp_flags); void gve_free_page(struct device *dev, struct page *page, dma_addr_t dma, enum dma_data_direction); /* tx handling */ diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c index 959352fceead..68552848d388 100644 --- a/drivers/net/ethernet/google/gve/gve_main.c +++ b/drivers/net/ethernet/google/gve/gve_main.c @@ -746,9 +746,9 @@ static void gve_free_rings(struct gve_priv *priv) int gve_alloc_page(struct gve_priv *priv, struct device *dev, struct page **page, dma_addr_t *dma, - enum dma_data_direction dir) + enum dma_data_direction dir, gfp_t gfp_flags) { - *page = alloc_page(GFP_KERNEL); + *page = alloc_page(gfp_flags); if (!*page) { priv->page_alloc_fail++; return -ENOMEM; @@ -792,7 +792,7 @@ static int gve_alloc_queue_page_list(struct gve_priv *priv, u32 id, for (i = 0; i < pages; i++) { err = gve_alloc_page(priv, &priv->pdev->dev, &qpl->pages[i], &qpl->page_buses[i], - gve_qpl_dma_dir(priv, id)); + gve_qpl_dma_dir(priv, id), GFP_KERNEL); /* caller handles clean up */ if (err) return -ENOMEM; diff --git a/drivers/net/ethernet/google/gve/gve_rx.c b/drivers/net/ethernet/google/gve/gve_rx.c index 16169f291ad9..629d8ed08fc6 100644 --- a/drivers/net/ethernet/google/gve/gve_rx.c +++ b/drivers/net/ethernet/google/gve/gve_rx.c @@ -79,7 +79,8 @@ static int gve_rx_alloc_buffer(struct gve_priv *priv, struct device *dev, dma_addr_t dma; int err; - err = gve_alloc_page(priv, dev, &page, &dma, DMA_FROM_DEVICE); + err = gve_alloc_page(priv, dev, &page, &dma, DMA_FROM_DEVICE, + GFP_ATOMIC); if (err) return err; diff --git a/drivers/net/ethernet/google/gve/gve_rx_dqo.c b/drivers/net/ethernet/google/gve/gve_rx_dqo.c index 8500621b2cd4..7b18b4fd9e54 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); + &buf_state->addr, DMA_FROM_DEVICE, GFP_KERNEL); if (err) return err; |