Date: Wed, 2 Nov 2005 15:23:47 +0000 (UTC) From: Gleb Smirnoff <glebius@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/netgraph ng_base.c Message-ID: <200511021523.jA2FNlxf083191@repoman.freebsd.org>
next in thread | raw e-mail | index | archive | help
glebius 2005-11-02 15:23:47 UTC
FreeBSD src repository
Modified files:
sys/netgraph ng_base.c
Log:
Fix two races which happen when netgraph is restructuring:
- Introduce ng_topo_mtx, a mutex to protect topology changes.
- In ng_destroy_node() protect with ng_topo_mtx the process
of checking and pointing at ng_deadnode. [1]
- In ng_con_part2() check that our peer is not a ng_deadnode,
and protect the check with ng_topo_mtx.
- Add KASSERTs to ng_acquire_read/write, to make more
understandible synopsis in case if called on ng_deadnode.
Reported by: Roselyn Lee [1]
Revision Changes Path
1.117 +47 -8 src/sys/netgraph/ng_base.c
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200511021523.jA2FNlxf083191>