diff options
author | wollman <wollman@FreeBSD.org> | 1994-12-21 17:25:52 +0000 |
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committer | wollman <wollman@FreeBSD.org> | 1994-12-21 17:25:52 +0000 |
commit | 408291338b0a20c62dee204fc7ec24a18838d5d4 (patch) | |
tree | fc44babf7f416cf9ab2182f4b39a93ae5f8fb0a4 /sys/netinet/in_rmx.c | |
parent | fc1509a009c04ccb08ad290842a91217efeacff5 (diff) | |
download | FreeBSD-src-408291338b0a20c62dee204fc7ec24a18838d5d4.zip FreeBSD-src-408291338b0a20c62dee204fc7ec24a18838d5d4.tar.gz |
Avoid a serious race by blocking netisrs while walking the route tree.
(IWBRNI we could just block IP netisrs...)
Diffstat (limited to 'sys/netinet/in_rmx.c')
-rw-r--r-- | sys/netinet/in_rmx.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/sys/netinet/in_rmx.c b/sys/netinet/in_rmx.c index aa33417..a007f71 100644 --- a/sys/netinet/in_rmx.c +++ b/sys/netinet/in_rmx.c @@ -4,7 +4,7 @@ * You may copy this file verbatim until I find the official * Institute boilerplate. * - * $Id: in_rmx.c,v 1.5 1994/12/02 23:10:32 wollman Exp $ + * $Id: in_rmx.c,v 1.6 1994/12/13 22:32:45 wollman Exp $ */ /* @@ -20,10 +20,6 @@ * indefinitely. See in_rtqtimo() below for the exact mechanism. */ -/* - * XXX - look for races - */ - #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> @@ -158,12 +154,15 @@ in_rtqtimo(void *rock) struct radix_node_head *rnh = rock; struct rtqk_arg arg; struct timeval atv; + int s; arg.found = arg.killed = 0; arg.rnh = rnh; arg.nextstop = time.tv_sec + 10*rtq_timeout; arg.draining = 0; + s = splnet(); rnh->rnh_walktree(rnh, in_rtqkill, &arg); + splx(s); atv.tv_usec = 0; atv.tv_sec = arg.nextstop; timeout(in_rtqtimo, rock, hzto(&atv)); @@ -174,11 +173,12 @@ in_rtqdrain(void) { struct radix_node_head *rnh = rt_tables[AF_INET]; struct rtqk_arg arg; - int s = splnet(); + int s; arg.found = arg.killed = 0; arg.rnh = rnh; arg.nextstop = 0; arg.draining = 1; + s = splnet(); rnh->rnh_walktree(rnh, in_rtqkill, &arg); splx(s); } |