[PATCH 4.20 104/183] afs: Provide a function to get a ref on a call

[Greg Kroah-Hartman]

4.20-stable review patch.  If anyone has any objections, please let me know.

------------------

[ Upstream commit 7a75b0079a1d54e342c502c3c8107ba97e05d3d3 ]

Provide a function to get a reference on an afs_call struct.

Signed-off-by: David Howells <dhowe...@redhat.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 fs/afs/rxrpc.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index a7b44863d502e..4830e0a6bf1d1 100644
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -203,20 +203,26 @@ void afs_put_call(struct afs_call *call)
        }
 }
 
+static struct afs_call *afs_get_call(struct afs_call *call,
+                                    enum afs_call_trace why)
+{
+       int u = atomic_inc_return(&call->usage);
+
+       trace_afs_call(call, why, u,
+                      atomic_read(&call->net->nr_outstanding_calls),
+                      __builtin_return_address(0));
+       return call;
+}
+
 /*
  * Queue the call for actual work.
  */
 static void afs_queue_call_work(struct afs_call *call)
 {
        if (call->type->work) {
-               int u = atomic_inc_return(&call->usage);
-
-               trace_afs_call(call, afs_call_trace_work, u,
-                              atomic_read(&call->net->nr_outstanding_calls),
-                              __builtin_return_address(0));
-
                INIT_WORK(&call->work, call->type->work);
 
+               afs_get_call(call, afs_call_trace_work);
                if (!queue_work(afs_wq, &call->work))
                        afs_put_call(call);
        }
-- 
2.19.1