[PATCH review for 4.9 01/50] xen-netback: Use GFP_ATOMIC to allocate hash

From: Levin, Alexander (Sasha Levin)
Date: Sun Sep 24 2017 - 21:32:14 EST


From: Anoob Soman <anoob.soman@xxxxxxxxxx>

[ Upstream commit 9f674e48c13dcbc31ac903433727837795b81efe ]

Allocation of new_hash, inside xenvif_new_hash(), always happen
in softirq context, so use GFP_ATOMIC instead of GFP_KERNEL for new
hash allocation.

Signed-off-by: Anoob Soman <anoob.soman@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
---
drivers/net/xen-netback/hash.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/xen-netback/hash.c b/drivers/net/xen-netback/hash.c
index e8c5dddc54ba..3c4c58b9fe76 100644
--- a/drivers/net/xen-netback/hash.c
+++ b/drivers/net/xen-netback/hash.c
@@ -39,7 +39,7 @@ static void xenvif_add_hash(struct xenvif *vif, const u8 *tag,
unsigned long flags;
bool found;

- new = kmalloc(sizeof(*entry), GFP_KERNEL);
+ new = kmalloc(sizeof(*entry), GFP_ATOMIC);
if (!new)
return;

--
2.11.0