| Message ID | 1675714317-48577-1-git-send-email-mikelley@microsoft.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | c6aa9d3b43cd11ac13a8220368a3b0483c6751d4 |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | [net,1/1] hv_netvsc: Allocate memory in netvsc_dma_map() with GFP_ATOMIC | expand |
Hello: This patch was applied to netdev/net.git (master) by Jakub Kicinski <kuba@kernel.org>: On Mon, 6 Feb 2023 12:11:57 -0800 you wrote: > 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> > > [...] Here is the summary with links: - [net,1/1] hv_netvsc: Allocate memory in netvsc_dma_map() with GFP_ATOMIC https://git.kernel.org/netdev/net/c/c6aa9d3b43cd You are awesome, thank you!
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;
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(-)