diff options
| author | rwatson <rwatson@FreeBSD.org> | 2008-07-07 09:26:52 +0000 |
|---|---|---|
| committer | rwatson <rwatson@FreeBSD.org> | 2008-07-07 09:26:52 +0000 |
| commit | 551285191e25159705e99dbcf30b95ab0d92f29e (patch) | |
| tree | 1d7c5eb3410b82baa083a5caef1e8ca05434372e /sys/netinet | |
| parent | ea74539fbc8e15c5f08d274a44fab9597bd721a8 (diff) | |
| download | FreeBSD-src-551285191e25159705e99dbcf30b95ab0d92f29e.zip FreeBSD-src-551285191e25159705e99dbcf30b95ab0d92f29e.tar.gz | |
Drop read lock on udbinfo earlier during delivery to the last matching
UDP socket for a datagram; the inpcb read lock is sufficient to provide
inpcb stability during udp_append().
MFC after: 1 month
Diffstat (limited to 'sys/netinet')
| -rw-r--r-- | sys/netinet/udp_usrreq.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c index 4479a50..f63fd0b 100644 --- a/sys/netinet/udp_usrreq.c +++ b/sys/netinet/udp_usrreq.c @@ -542,11 +542,13 @@ udp_input(struct mbuf *m, int off) * Check the minimum TTL for socket. */ INP_RLOCK(inp); - if (inp->inp_ip_minttl && inp->inp_ip_minttl > ip->ip_ttl) - goto badheadlocked; + INP_INFO_RUNLOCK(&udbinfo); + if (inp->inp_ip_minttl && inp->inp_ip_minttl > ip->ip_ttl) { + INP_RUNLOCK(inp); + goto badunlocked; + } udp_append(inp, ip, m, iphlen + sizeof(struct udphdr), &udp_in); INP_RUNLOCK(inp); - INP_INFO_RUNLOCK(&udbinfo); return; badheadlocked: |
