Date: Wed, 17 Dec 2008 04:33:52 +0000 (UTC) From: Kip Macy <kmacy@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r186209 - head/sys/net Message-ID: <200812170433.mBH4XqkH057618@svn.freebsd.org>
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Author: kmacy Date: Wed Dec 17 04:33:52 2008 New Revision: 186209 URL: http://svn.freebsd.org/changeset/base/186209 Log: avoid trying to acquire a shared lock while holding an exclusive lock by making the ifnet lock acquisition exclusive Modified: head/sys/net/if.c Modified: head/sys/net/if.c ============================================================================== --- head/sys/net/if.c Wed Dec 17 04:15:38 2008 (r186208) +++ head/sys/net/if.c Wed Dec 17 04:33:52 2008 (r186209) @@ -197,9 +197,9 @@ ifnet_byindex(u_short idx) INIT_VNET_NET(curvnet); struct ifnet *ifp; - IFNET_RLOCK(); + IFNET_WLOCK(); ifp = V_ifindex_table[idx].ife_ifnet; - IFNET_RUNLOCK(); + IFNET_WUNLOCK(); return (ifp); } @@ -218,9 +218,9 @@ ifaddr_byindex(u_short idx) { struct ifaddr *ifa; - IFNET_RLOCK(); + IFNET_WLOCK(); ifa = ifnet_byindex(idx)->if_addr; - IFNET_RUNLOCK(); + IFNET_WUNLOCK(); return (ifa); }
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