rxrpc: Note a successfully aborted kernel operation

Make rxrpc_kernel_abort_call() return an indication as to whether it
actually aborted the operation or not so that kafs can trace the failure of
the operation.  Note that 'success' in this context means changing the
state of the call, not necessarily successfully transmitting an ABORT
packet.

Signed-off-by: David Howells <dhowells@redhat.com>

1 files changed, 8 insertions, 4 deletions

diff --git a/net/rxrpc/sendmsg.c b/net/rxrpc/sendmsg.c
index 601c0a3e31a2..e836fa00dc5a 100644
--- a/net/rxrpc/sendmsg.c
+++ b/net/rxrpc/sendmsg.c
@@ -642,20 +642,24 @@ EXPORT_SYMBOL(rxrpc_kernel_send_data);
  * @error: Local error value
  * @why: 3-char string indicating why.
  *
- * Allow a kernel service to abort a call, if it's still in an abortable state.
+ * Allow a kernel service to abort a call, if it's still in an abortable state
+ * and return true if the call was aborted, false if it was already complete.
  */
-void rxrpc_kernel_abort_call(struct socket *sock, struct rxrpc_call *call,
+bool rxrpc_kernel_abort_call(struct socket *sock, struct rxrpc_call *call,
 			     u32 abort_code, int error, const char *why)
 {
+	bool aborted;
+
 	_enter("{%d},%d,%d,%s", call->debug_id, abort_code, error, why);
 
 	mutex_lock(&call->user_mutex);
 
-	if (rxrpc_abort_call(why, call, 0, abort_code, error))
+	aborted = rxrpc_abort_call(why, call, 0, abort_code, error);
+	if (aborted)
 		rxrpc_send_abort_packet(call);
 
 	mutex_unlock(&call->user_mutex);
-	_leave("");
+	return aborted;
 }
 
 EXPORT_SYMBOL(rxrpc_kernel_abort_call);