Author: melifaro Date: Sat May 5 11:33:48 2012 New Revision: 235055 URL: http://svn.freebsd.org/changeset/base/235055
Log: MFC r234572 Do not require radix write lock to be held while dumping route table via sysctl(4) interface. This permits router not to stop forwarding packets while route table is being written to user-supplied buffer. Reported by: Pawel Tyll <[email protected]> Approved by: kib(mentor) Modified: stable/9/sys/net/rtsock.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/net/rtsock.c ============================================================================== --- stable/9/sys/net/rtsock.c Sat May 5 11:26:08 2012 (r235054) +++ stable/9/sys/net/rtsock.c Sat May 5 11:33:48 2012 (r235055) @@ -1859,10 +1859,10 @@ sysctl_rtsock(SYSCTL_HANDLER_ARGS) for (error = 0; error == 0 && i <= lim; i++) { rnh = rt_tables_get_rnh(req->td->td_proc->p_fibnum, i); if (rnh != NULL) { - RADIX_NODE_HEAD_LOCK(rnh); + RADIX_NODE_HEAD_RLOCK(rnh); error = rnh->rnh_walktree(rnh, sysctl_dumpentry, &w); - RADIX_NODE_HEAD_UNLOCK(rnh); + RADIX_NODE_HEAD_RUNLOCK(rnh); } else if (af != 0) error = EAFNOSUPPORT; } _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-stable-9 To unsubscribe, send any mail to "[email protected]"
