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| author | Sowmini Varadhan <sowmini.varadhan@oracle.com> | 2015-04-21 16:30:41 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-04-21 22:17:06 +0200 |
| commit | 0edfad5959df7379c9e554fbe8ba264ae232d321 (patch) | |
| tree | bc1638f073f782b9855e7d11421a42583adfe171 /arch/sparc/kernel/ldc.c | |
| parent | sparc64: Use M7 PMC write on all chips T4 and onward. (diff) | |
| download | linux-0edfad5959df7379c9e554fbe8ba264ae232d321.tar.xz linux-0edfad5959df7379c9e554fbe8ba264ae232d321.zip | |
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>
Diffstat (limited to 'arch/sparc/kernel/ldc.c')
| -rw-r--r-- | arch/sparc/kernel/ldc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c index d2ae0f70059e..7d3ca30fcd15 100644 --- a/arch/sparc/kernel/ldc.c +++ b/arch/sparc/kernel/ldc.c @@ -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); |