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Diffstat (limited to 'net/sunrpc/xprtmultipath.c')
-rw-r--r--net/sunrpc/xprtmultipath.c57
1 files changed, 37 insertions, 20 deletions
diff --git a/net/sunrpc/xprtmultipath.c b/net/sunrpc/xprtmultipath.c
index 701250b305db..4c5e08b0aa64 100644
--- a/net/sunrpc/xprtmultipath.c
+++ b/net/sunrpc/xprtmultipath.c
@@ -92,6 +92,27 @@ void rpc_xprt_switch_remove_xprt(struct rpc_xprt_switch *xps,
xprt_put(xprt);
}
+/**
+ * rpc_xprt_switch_get_main_xprt - Get the 'main' xprt for an xprt switch.
+ * @xps: pointer to struct rpc_xprt_switch.
+ */
+struct rpc_xprt *rpc_xprt_switch_get_main_xprt(struct rpc_xprt_switch *xps)
+{
+ struct rpc_xprt_iter xpi;
+ struct rpc_xprt *xprt;
+
+ xprt_iter_init_listall(&xpi, xps);
+
+ xprt = xprt_iter_get_next(&xpi);
+ while (xprt && !xprt->main) {
+ xprt_put(xprt);
+ xprt = xprt_iter_get_next(&xpi);
+ }
+
+ xprt_iter_destroy(&xpi);
+ return xprt;
+}
+
static DEFINE_IDA(rpc_xprtswitch_ids);
void xprt_multipath_cleanup_ids(void)
@@ -284,7 +305,7 @@ struct rpc_xprt *_xprt_switch_find_current_entry(struct list_head *head,
if (cur == pos)
found = true;
if (found && ((find_active && xprt_is_active(pos)) ||
- (!find_active && xprt_is_active(pos))))
+ (!find_active && !xprt_is_active(pos))))
return pos;
}
return NULL;
@@ -336,8 +357,9 @@ struct rpc_xprt *xprt_iter_current_entry_offline(struct rpc_xprt_iter *xpi)
xprt_switch_find_current_entry_offline);
}
-bool rpc_xprt_switch_has_addr(struct rpc_xprt_switch *xps,
- const struct sockaddr *sap)
+static
+bool __rpc_xprt_switch_has_addr(struct rpc_xprt_switch *xps,
+ const struct sockaddr *sap)
{
struct list_head *head;
struct rpc_xprt *pos;
@@ -356,6 +378,18 @@ bool rpc_xprt_switch_has_addr(struct rpc_xprt_switch *xps,
return false;
}
+bool rpc_xprt_switch_has_addr(struct rpc_xprt_switch *xps,
+ const struct sockaddr *sap)
+{
+ bool res;
+
+ rcu_read_lock();
+ res = __rpc_xprt_switch_has_addr(xps, sap);
+ rcu_read_unlock();
+
+ return res;
+}
+
static
struct rpc_xprt *xprt_switch_find_next_entry(struct list_head *head,
const struct rpc_xprt *cur, bool check_active)
@@ -590,23 +624,6 @@ struct rpc_xprt *xprt_iter_get_helper(struct rpc_xprt_iter *xpi,
}
/**
- * xprt_iter_get_xprt - Returns the rpc_xprt pointed to by the cursor
- * @xpi: pointer to rpc_xprt_iter
- *
- * Returns a reference to the struct rpc_xprt that is currently
- * pointed to by the cursor.
- */
-struct rpc_xprt *xprt_iter_get_xprt(struct rpc_xprt_iter *xpi)
-{
- struct rpc_xprt *xprt;
-
- rcu_read_lock();
- xprt = xprt_iter_get_helper(xpi, xprt_iter_ops(xpi)->xpi_xprt);
- rcu_read_unlock();
- return xprt;
-}
-
-/**
* xprt_iter_get_next - Returns the next rpc_xprt following the cursor
* @xpi: pointer to rpc_xprt_iter
*