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Diffstat (limited to 'include/linux/sunrpc')
-rw-r--r--include/linux/sunrpc/xprt.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index b6096592b1d4..0fb9acbb4780 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -135,6 +135,7 @@ struct rpc_xprt_ops {
void (*print_stats)(struct rpc_xprt *xprt, struct seq_file *seq);
int (*enable_swap)(struct rpc_xprt *xprt);
void (*disable_swap)(struct rpc_xprt *xprt);
+ void (*inject_disconnect)(struct rpc_xprt *xprt);
};
/*
@@ -244,6 +245,7 @@ struct rpc_xprt {
const char *address_strings[RPC_DISPLAY_MAX];
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
struct dentry *debugfs; /* debugfs directory */
+ atomic_t inject_disconnect;
#endif
};
@@ -445,6 +447,23 @@ static inline int xprt_test_and_set_binding(struct rpc_xprt *xprt)
return test_and_set_bit(XPRT_BINDING, &xprt->state);
}
+#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
+extern unsigned int rpc_inject_disconnect;
+static inline void xprt_inject_disconnect(struct rpc_xprt *xprt)
+{
+ if (!rpc_inject_disconnect)
+ return;
+ if (atomic_dec_return(&xprt->inject_disconnect))
+ return;
+ atomic_set(&xprt->inject_disconnect, rpc_inject_disconnect);
+ xprt->ops->inject_disconnect(xprt);
+}
+#else
+static inline void xprt_inject_disconnect(struct rpc_xprt *xprt)
+{
+}
+#endif
+
#endif /* __KERNEL__*/
#endif /* _LINUX_SUNRPC_XPRT_H */