diff options
| author | rwatson <rwatson@FreeBSD.org> | 2009-06-21 21:04:12 +0000 |
|---|---|---|
| committer | rwatson <rwatson@FreeBSD.org> | 2009-06-21 21:04:12 +0000 |
| commit | 9e88f817eec82327026cdbd1ec18229191f6482d (patch) | |
| tree | ab15f66e2608189ce25106a3bf1b8202ed4a4dac /sys/netipx/ipx_if.h | |
| parent | d092e8e13d0d2c4c93ccc14801eb033e16b09bb1 (diff) | |
| download | FreeBSD-src-9e88f817eec82327026cdbd1ec18229191f6482d.zip FreeBSD-src-9e88f817eec82327026cdbd1ec18229191f6482d.tar.gz | |
Introduce basic locking of global IPX address list 'ipx_ifaddr' using
a new rwlock, ipx_ifaddr_rw, wrapped with macros. This locking is
necessary but not sufficient, in isolation, to satisfy the stability
requirements of a fully parallel IPX input path during interface
reconfiguration.
MFC after: 3 weeks
Diffstat (limited to 'sys/netipx/ipx_if.h')
| -rw-r--r-- | sys/netipx/ipx_if.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sys/netipx/ipx_if.h b/sys/netipx/ipx_if.h index 8b5d16c..fbf5547 100644 --- a/sys/netipx/ipx_if.h +++ b/sys/netipx/ipx_if.h @@ -105,7 +105,16 @@ struct ipx_aliasreq { #define ETHERTYPE_IPX 0x8137 /* Only Ethernet_II Available */ #ifdef _KERNEL -extern struct ipx_ifaddr *ipx_ifaddr; +extern struct rwlock ipx_ifaddr_rw; +extern struct ipx_ifaddr *ipx_ifaddr; + +#define IPX_IFADDR_LOCK_INIT() rw_init(&ipx_ifaddr_rw, "ipx_ifaddr_rw") +#define IPX_IFADDR_LOCK_ASSERT() rw_assert(&ipx_ifaddr_rw, RA_LOCKED) +#define IPX_IFADDR_RLOCK() rw_rlock(&ipx_ifaddr_rw) +#define IPX_IFADDR_RUNLOCK() rw_runlock(&ipx_ifaddr_rw) +#define IPX_IFADDR_WLOCK() rw_wlock(&ipx_ifaddr_rw) +#define IPX_IFADDR_WUNLOCK() rw_wunlock(&ipx_ifaddr_rw) +#define IPX_IFADDR_RLOCK_ASSERT() rw_assert(&ipx_ifaddr_rw, RA_WLOCKED) struct ipx_ifaddr *ipx_iaonnetof(struct ipx_addr *dst); #endif |
