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authorMichael Kelley <mikelley@microsoft.com>2023-02-06 12:11:57 -0800
committerJakub Kicinski <kuba@kernel.org>2023-02-07 20:39:26 -0800
commitc6aa9d3b43cd11ac13a8220368a3b0483c6751d4 (patch)
tree4590299752014ef31564a09ae7356bc4fb1a3dd6 /drivers/net/hyperv
parent565b4824c39fa335cba2028a09d7beb7112f3c9a (diff)
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hv_netvsc: Allocate memory in netvsc_dma_map() with GFP_ATOMIC
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> Link: https://lore.kernel.org/r/1675714317-48577-1-git-send-email-mikelley@microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/hyperv')
-rw-r--r--drivers/net/hyperv/netvsc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index e02d1e3ef672..79f4e13620a4 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;