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net: add __netdev_alloc_pcpu_stats() to indicate gfp flags 

nf_tables may create percpu counters from the packet path through its
dynamic set instantiation infrastructure, so we need a way to allocate
this through GFP_ATOMIC.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pablo Neira Ayuso 2015-11-10 14:31:18 +01:00
parent 74ec4d55c4
commit aabc92bbe3
1 changed files with 15 additions and 12 deletions
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7
include/linux/netdevice.h
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@ -2068,9 +2068,9 @@ struct pcpu_sw_netstats {
struct u64_stats_sync syncp;
};
#define netdev_alloc_pcpu_stats(type) \
#define __netdev_alloc_pcpu_stats(type, gfp) \
({ \
typeof(type) __percpu *pcpu_stats = alloc_percpu(type); \
typeof(type) __percpu *pcpu_stats = alloc_percpu_gfp(type, gfp);\
if (pcpu_stats) { \
int __cpu; \
for_each_possible_cpu(__cpu) { \
@ -2082,6 +2082,9 @@ struct pcpu_sw_netstats {
pcpu_stats; \
})
#define netdev_alloc_pcpu_stats(type) \
__netdev_alloc_pcpu_stats(type, GFP_KERNEL);
#include <linux/notifier.h>
/* netdevice notifier chain. Please remember to update the rtnetlink