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| author | rwatson <rwatson@FreeBSD.org> | 2004-03-17 01:09:59 +0000 |
|---|---|---|
| committer | rwatson <rwatson@FreeBSD.org> | 2004-03-17 01:09:59 +0000 |
| commit | 90c4d019f1c1199a2e583bd63284144eb0c858e5 (patch) | |
| tree | 5e7680f972641a6b6bccc91e5f96582ca5d9389d /sys/net/if_tapvar.h | |
| parent | 7d2d6deecf36ab78dace21a1160668a957723bb8 (diff) | |
| download | FreeBSD-src-90c4d019f1c1199a2e583bd63284144eb0c858e5.zip FreeBSD-src-90c4d019f1c1199a2e583bd63284144eb0c858e5.tar.gz | |
Add tap_mtx to tap_softc in order to protect per-softc variables
(tap_pid, tap_flags). if_tap should now be entirely MPSAFE.
Committed from: Bamboo house by ocean in Taiwan
Tropical paradise provided by: Chia-liang Kao <clkao@clkao.org>
Diffstat (limited to 'sys/net/if_tapvar.h')
| -rw-r--r-- | sys/net/if_tapvar.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/net/if_tapvar.h b/sys/net/if_tapvar.h index 5b7312f..acd4528 100644 --- a/sys/net/if_tapvar.h +++ b/sys/net/if_tapvar.h @@ -41,6 +41,10 @@ #ifndef _NET_IF_TAPVAR_H_ #define _NET_IF_TAPVAR_H_ +/* + * tap_mtx locks tap_flags, tap_pid. tap_next locked with global tapmtx. + * Other fields locked by owning subsystems. + */ struct tap_softc { struct arpcom arpcom; /* ethernet common data */ #define tap_if arpcom.ac_if @@ -60,6 +64,7 @@ struct tap_softc { SLIST_ENTRY(tap_softc) tap_next; /* next device in chain */ dev_t tap_dev; + struct mtx tap_mtx; /* per-softc mutex */ }; #endif /* !_NET_IF_TAPVAR_H_ */ |
