3.19.8-ckt4 -stable review patch. If anyone has any objections, please let me
know.
------------------
From: Sowmini Varadhan <sowmini.varad...@oracle.com>
[ Upstream commit 0edfad5959df7379c9e554fbe8ba264ae232d321 ]
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.varad...@oracle.com>
[ kamal: corrected upstream commit SHA ]
Cc: David Miller <da...@davemloft.net>
Signed-off-by: Kamal Mostafa <ka...@canonical.com>
---
arch/sparc/kernel/ldc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c
index 274a9f5..591f119f 100644
--- a/arch/sparc/kernel/ldc.c
+++ b/arch/sparc/kernel/ldc.c
@@ -2313,7 +2313,7 @@ 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);
--
1.9.1
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