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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-03-11 14:38:03 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-03-19 15:17:34 -0400 |
| commit | 7d1e8255cf959fba7ee2317550dfde39f0b936ae (patch) | |
| tree | 0a046b83e5ac29501849c34408059480d4c210be /include/linux/sunrpc/xprt.h | |
| parent | 5e3771ce2d6a69e10fcc870cdf226d121d868491 (diff) | |
| download | lwn-7d1e8255cf959fba7ee2317550dfde39f0b936ae.tar.gz lwn-7d1e8255cf959fba7ee2317550dfde39f0b936ae.zip | |
SUNRPC: Add the equivalent of the linger and linger2 timeouts to RPC sockets
This fixes a regression against FreeBSD servers as reported by Tomas
Kasparek. Apparently when using RPC over a TCP socket, the FreeBSD servers
don't ever react to the client closing the socket, and so commit
e06799f958bf7f9f8fae15f0c6f519953fb0257c (SUNRPC: Use shutdown() instead of
close() when disconnecting a TCP socket) causes the setup to hang forever
whenever the client attempts to close and then reconnect.
We break the deadlock by adding a 'linger2' style timeout to the socket,
after which, the client will abort the connection using a TCP 'RST'.
The default timeout is set to 15 seconds. A subsequent patch will put it
under user control by means of a systctl.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/sunrpc/xprt.h')
| -rw-r--r-- | include/linux/sunrpc/xprt.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index 2b0d960603b9..1758d9f5b5c3 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -260,6 +260,7 @@ void xprt_conditional_disconnect(struct rpc_xprt *xprt, unsigned int cookie); #define XPRT_BOUND (4) #define XPRT_BINDING (5) #define XPRT_CLOSING (6) +#define XPRT_CONNECTION_ABORT (7) static inline void xprt_set_connected(struct rpc_xprt *xprt) { |