diff options
author | Steve French <sfrench@us.ibm.com> | 2006-01-12 14:47:08 -0800 |
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committer | Steve French <sfrench@us.ibm.com> | 2006-01-12 14:47:08 -0800 |
commit | 94bc2be31a01a3055ec94176e595dfe208e92d3b (patch) | |
tree | ebfbe81c6718a6390bfa1b99c6d228237d818576 /net/sunrpc/svcauth_unix.c | |
parent | c32a0b689cb9cc160cfcd19735bbf50bb70c6ef4 (diff) | |
parent | 58cba4650a7a414eabd2b40cc9d8e45fcdf192d9 (diff) |
Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'net/sunrpc/svcauth_unix.c')
-rw-r--r-- | net/sunrpc/svcauth_unix.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c index cac2e774dd8..3e6c694bbad 100644 --- a/net/sunrpc/svcauth_unix.c +++ b/net/sunrpc/svcauth_unix.c @@ -101,10 +101,22 @@ static void ip_map_put(struct cache_head *item, struct cache_detail *cd) } } +#if IP_HASHBITS == 8 +/* hash_long on a 64 bit machine is currently REALLY BAD for + * IP addresses in reverse-endian (i.e. on a little-endian machine). + * So use a trivial but reliable hash instead + */ +static inline int hash_ip(unsigned long ip) +{ + int hash = ip ^ (ip>>16); + return (hash ^ (hash>>8)) & 0xff; +} +#endif + static inline int ip_map_hash(struct ip_map *item) { return hash_str(item->m_class, IP_HASHBITS) ^ - hash_long((unsigned long)item->m_addr.s_addr, IP_HASHBITS); + hash_ip((unsigned long)item->m_addr.s_addr); } static inline int ip_map_match(struct ip_map *item, struct ip_map *tmp) { |