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author | rwatson <rwatson@FreeBSD.org> | 2004-03-29 22:16:39 +0000 |
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committer | rwatson <rwatson@FreeBSD.org> | 2004-03-29 22:16:39 +0000 |
commit | 8e41c82b83a283bd515274944d549ab23a03dc94 (patch) | |
tree | 6375464682648d7eb465fa23e67b9f10cd83fea9 /sys/modules/Makefile | |
parent | 8aa9f6fafeeaef7ac19532a9ea41665523e187ba (diff) | |
download | FreeBSD-src-8e41c82b83a283bd515274944d549ab23a03dc94.zip FreeBSD-src-8e41c82b83a283bd515274944d549ab23a03dc94.tar.gz |
Add per-softc locking to if_tun:
- Add tun_mtx to tun_softc. Annotate what is (and isn't) locked by it.
- Lock down tun_flags, tun_pid.
- In the output path, cache the value of tun_flags so it's consistent
when processing a particular packet rather than re-reading the field.
- In general, use unlocked reads for debugging.
- Annotate a couple of places where additional unlocked reads may be
possible.
- Annotate that tun_pid is used as a bug in tunopen().
if_tun is now largely MPSAFE, although questions remain about some of
the cdevsw fields and how they are synchronized.
Diffstat (limited to 'sys/modules/Makefile')
0 files changed, 0 insertions, 0 deletions