Commit 0edfad59 authored Apr 21, 2015 by Sowmini Varadhan Committed by David S. Miller Apr 21, 2015

sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context



Since it is possible for vnet_event_napi to end up doing
vnet_control_pkt_engine -> ... -> vnet_send_attr ->
vnet_port_alloc_tx_ring -> ldc_alloc_exp_dring -> kzalloc()
(i.e., in softirq context), kzalloc() should be called with
GFP_ATOMIC from ldc_alloc_exp_dring.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent df386375

arch/sparc/kernel/ldc.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2290,7 +2290,7 @@ void ldc_alloc_exp_dring(struct ldc_channel lp, unsigned int len,
		if (len & (8UL - 1))
		return ERR_PTR(-EINVAL);

		buf = kzalloc(len, GFP_KERNEL);
		buf = kzalloc(len, GFP_ATOMIC);
		if (!buf)
		return ERR_PTR(-ENOMEM);