| Pavel Emelyanov | 0b44191 | 2008-06-16 17:14:11 -0700 | [diff] [blame] | 1 | #ifndef __NET_NS_HASH_H__ |
| 2 | #define __NET_NS_HASH_H__ | ||||
| 3 | |||||
| 4 | #include <asm/cache.h> | ||||
| 5 | |||||
| 6 | struct net; | ||||
| 7 | |||||
| 8 | static inline unsigned net_hash_mix(struct net *net) | ||||
| 9 | { | ||||
| 10 | #ifdef CONFIG_NET_NS | ||||
| 11 | /* | ||||
| 12 | * shift this right to eliminate bits, that are | ||||
| 13 | * always zeroed | ||||
| 14 | */ | ||||
| 15 | |||||
| 16 | return (unsigned)(((unsigned long)net) >> L1_CACHE_SHIFT); | ||||
| 17 | #else | ||||
| 18 | return 0; | ||||
| 19 | #endif | ||||
| 20 | } | ||||
| 21 | #endif | ||||