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| author |   Trond Myklebust <trond.myklebust@hammerspace.com> | 2022-10-05 15:57:37 -0400 |
|---|---|---|
| committer |   Anna Schumaker <Anna.Schumaker@Netapp.com> | 2022-10-06 09:52:09 -0400 |
| commit | dc4c4304855a5721d214e2a53e17df5152dd5f34 (patch) | |
| tree | 0b2c9b041088686a4b01e1a0e1c8f3303e75dac6 | |
| parent | SUNRPC: Add a helper to allow pNFS drivers to selectively cancel RPC calls (diff) | |
| download | linux-dev-dc4c4304855a5721d214e2a53e17df5152dd5f34.tar.xz linux-dev-dc4c4304855a5721d214e2a53e17df5152dd5f34.zip | |
SUNRPC: Add API to force the client to disconnect
Allow the caller to force a disconnection of the RPC client so that we
can clear any pending requests that are buffered in the socket.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
| -rw-r--r-- | include/linux/sunrpc/clnt.h | 1 | ||||
| -rw-r--r-- | net/sunrpc/clnt.c | 14 |
2 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h index 75eea5ebb179..770ef2cb5775 100644 --- a/include/linux/sunrpc/clnt.h +++ b/include/linux/sunrpc/clnt.h @@ -246,6 +246,7 @@ void rpc_clnt_xprt_switch_remove_xprt(struct rpc_clnt *, struct rpc_xprt *); bool rpc_clnt_xprt_switch_has_addr(struct rpc_clnt *clnt, const struct sockaddr *sap); void rpc_clnt_xprt_set_online(struct rpc_clnt *clnt, struct rpc_xprt *xprt); +void rpc_clnt_disconnect(struct rpc_clnt *clnt); void rpc_cleanup_clids(void); static inline int rpc_reply_expected(struct rpc_task *task) diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 57677517b474..993acf38af87 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -910,6 +910,20 @@ unsigned long rpc_cancel_tasks(struct rpc_clnt *clnt, int error, } EXPORT_SYMBOL_GPL(rpc_cancel_tasks); +static int rpc_clnt_disconnect_xprt(struct rpc_clnt *clnt, + struct rpc_xprt *xprt, void *dummy) +{ + if (xprt_connected(xprt)) + xprt_force_disconnect(xprt); + return 0; +} + +void rpc_clnt_disconnect(struct rpc_clnt *clnt) +{ + rpc_clnt_iterate_for_each_xprt(clnt, rpc_clnt_disconnect_xprt, NULL); +} +EXPORT_SYMBOL_GPL(rpc_clnt_disconnect); + /* * Properly shut down an RPC client, terminating all outstanding * requests. |