diff options
Diffstat (limited to 'net/ipv6/ip6_output.c')
| -rw-r--r-- | net/ipv6/ip6_output.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 7871cc6..14753d3 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -612,7 +612,7 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr) void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt) { static atomic_t ipv6_fragmentation_id; - int old, new; + int ident; if (rt && !(rt->dst.flags & DST_NOPEER)) { struct inet_peer *peer; @@ -625,13 +625,8 @@ void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt) return; } } - do { - old = atomic_read(&ipv6_fragmentation_id); - new = old + 1; - if (!new) - new = 1; - } while (atomic_cmpxchg(&ipv6_fragmentation_id, old, new) != old); - fhdr->identification = htonl(new); + ident = atomic_inc_return(&ipv6_fragmentation_id); + fhdr->identification = htonl(ident); } int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *)) |