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| author | Alexander Motin <mav@FreeBSD.org> | 2009-01-08 17:51:15 +0000 |
|---|---|---|
| committer | Alexander Motin <mav@FreeBSD.org> | 2009-01-08 17:51:15 +0000 |
| commit | b098744265d4fdde6a3153b292e9416f2b94bef9 (patch) | |
| tree | c3f646f79ca4e296534cea594a70302e7588de6c /sys/netgraph/ng_vjc.c | |
| parent | 4fb52093a87921460b0b936b7818349908e8b2af (diff) | |
| download | src-b098744265d4fdde6a3153b292e9416f2b94bef9.tar.gz src-b098744265d4fdde6a3153b292e9416f2b94bef9.zip | |
Mark ng_vjc node as FORCE_WRITER to protect slcompress state.
I think it can be the reason of livelock in netgraph reported by some
mpd users.
MFC after: 3 days
Notes
Notes:
svn path=/head/; revision=186907
Diffstat (limited to 'sys/netgraph/ng_vjc.c')
| -rw-r--r-- | sys/netgraph/ng_vjc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/netgraph/ng_vjc.c b/sys/netgraph/ng_vjc.c index 5714ac05f57e..797b995ca93d 100644 --- a/sys/netgraph/ng_vjc.c +++ b/sys/netgraph/ng_vjc.c @@ -249,6 +249,9 @@ ng_vjc_constructor(node_p node) NG_NODE_SET_PRIVATE(node, priv); + /* slcompress is not thread-safe. Protect it's state here. */ + NG_NODE_FORCE_WRITER(node); + /* Done */ return (0); } |