diff options
| author | hsu <hsu@FreeBSD.org> | 2002-06-10 20:05:46 +0000 |
|---|---|---|
| committer | hsu <hsu@FreeBSD.org> | 2002-06-10 20:05:46 +0000 |
| commit | cd25d4648fdd5f53f76f460b7f57015bdc89bb56 (patch) | |
| tree | f0e255a19712887860d91eada0fa049d83035db7 /sys/netinet/tcp_syncache.c | |
| parent | 920300b8349bd6c222b5aa8140a0446a150745ff (diff) | |
| download | FreeBSD-src-cd25d4648fdd5f53f76f460b7f57015bdc89bb56.zip FreeBSD-src-cd25d4648fdd5f53f76f460b7f57015bdc89bb56.tar.gz | |
Lock up inpcb.
Submitted by: Jennifer Yang <yangjihui@yahoo.com>
Diffstat (limited to 'sys/netinet/tcp_syncache.c')
| -rw-r--r-- | sys/netinet/tcp_syncache.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/netinet/tcp_syncache.c b/sys/netinet/tcp_syncache.c index 771fa82..30a3a93 100644 --- a/sys/netinet/tcp_syncache.c +++ b/sys/netinet/tcp_syncache.c @@ -367,24 +367,29 @@ syncache_timer(xslot) callout_deactivate(&tcp_syncache.tt_timerq[slot]); nsc = TAILQ_FIRST(&tcp_syncache.timerq[slot]); + INP_INFO_RLOCK(&tcbinfo); while (nsc != NULL) { if (ticks < nsc->sc_rxttime) break; sc = nsc; nsc = TAILQ_NEXT(sc, sc_timerq); inp = sc->sc_tp->t_inpcb; + INP_LOCK(inp); if (slot == SYNCACHE_MAXREXMTS || slot >= tcp_syncache.rexmt_limit || inp->inp_gencnt != sc->sc_inp_gencnt) { syncache_drop(sc, NULL); tcpstat.tcps_sc_stale++; + INP_UNLOCK(inp); continue; } (void) syncache_respond(sc, NULL); + INP_UNLOCK(inp); tcpstat.tcps_sc_retransmitted++; TAILQ_REMOVE(&tcp_syncache.timerq[slot], sc, sc_timerq); SYNCACHE_TIMEOUT(sc, slot + 1); } + INP_INFO_RUNLOCK(&tcbinfo); if (nsc != NULL) callout_reset(&tcp_syncache.tt_timerq[slot], nsc->sc_rxttime - ticks, syncache_timer, (void *)(slot)); |
