xen-netback: Use GFP_ATOMIC to allocate hash

[ 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@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/xen-netback/hash.c b/drivers/net/xen-netback/hash.c
index e8c5dddc54ba27ee43354ab1fae263e0c31c5f1e..3c4c58b9fe76edfbf3d27fb5b6dbd0184ba706c0 100644 (file)
--- 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;