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authorSowmini Varadhan <sowmini.varadhan@oracle.com>2015-04-21 10:30:41 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-07-10 10:40:20 -0700
commitdc911b31255d65ef7e54e416bfbea810af56cf7a (patch)
treefae9edde6c251b53aa763545cae94bd03c266076 /arch
parentc48465423908a8955cd6de09b871161324cf5205 (diff)
sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context
Upstream commit 671d773297969bebb1732e1cdc1ec03aa53c6be2 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/sparc/kernel/ldc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c
index fa4c900a0d1f..62983d77455e 100644
--- a/arch/sparc/kernel/ldc.c
+++ b/arch/sparc/kernel/ldc.c
@@ -2306,7 +2306,7 @@ 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);