Messages in this thread Patch in this message | | | From | Michael Kelley <> | Subject | [PATCH net 1/1] hv_netvsc: Allocate memory in netvsc_dma_map() with GFP_ATOMIC | Date | Mon, 6 Feb 2023 12:11:57 -0800 |
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Memory allocations in the network transmit path must use GFP_ATOMIC so they won't sleep.
Reported-by: Paolo Abeni <pabeni@redhat.com> Link: https://lore.kernel.org/lkml/8a4d08f94d3e6fe8b6da68440eaa89a088ad84f9.camel@redhat.com/ Fixes: 846da38de0e8 ("net: netvsc: Add Isolation VM support for netvsc driver") Cc: stable@vger.kernel.org Signed-off-by: Michael Kelley <mikelley@microsoft.com> --- drivers/net/hyperv/netvsc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index e02d1e3..79f4e13 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -1034,7 +1034,7 @@ static int netvsc_dma_map(struct hv_device *hv_dev, packet->dma_range = kcalloc(page_count, sizeof(*packet->dma_range), - GFP_KERNEL); + GFP_ATOMIC); if (!packet->dma_range) return -ENOMEM; -- 1.8.3.1
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