From ab1fbe32477619b99921a203d16de9e66526b22a Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 15 Mar 2018 11:42:28 +0100
Subject: [PATCH] sched/wait, fs/afs: Convert wait_on_atomic_t() usage to the
 new wait_var_event() API

The old wait_on_atomic_t() is going to get removed, use the more
flexible wait_var_event() API instead.

No change in functionality.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 fs/afs/cell.c   | 6 +++---
 fs/afs/rxrpc.c  | 6 +++---
 fs/afs/server.c | 6 +++---
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/fs/afs/cell.c b/fs/afs/cell.c
index 9bb921d120d0..3d2c5e0e854e 100644
--- a/fs/afs/cell.c
+++ b/fs/afs/cell.c
@@ -25,7 +25,7 @@ static void afs_manage_cell(struct work_struct *);
 static void afs_dec_cells_outstanding(struct afs_net *net)
 {
 	if (atomic_dec_and_test(&net->cells_outstanding))
-		wake_up_atomic_t(&net->cells_outstanding);
+		wake_up_var(&net->cells_outstanding);
 }
 
 /*
@@ -764,7 +764,7 @@ void afs_cell_purge(struct afs_net *net)
 	afs_queue_cell_manager(net);
 
 	_debug("wait");
-	wait_on_atomic_t(&net->cells_outstanding, atomic_t_wait,
-			 TASK_UNINTERRUPTIBLE);
+	wait_var_event(&net->cells_outstanding,
+		       !atomic_read(&net->cells_outstanding));
 	_leave("");
 }
diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index e1126659f043..e613dd754383 100644
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -103,8 +103,8 @@ void afs_close_socket(struct afs_net *net)
 	}
 
 	_debug("outstanding %u", atomic_read(&net->nr_outstanding_calls));
-	wait_on_atomic_t(&net->nr_outstanding_calls, atomic_t_wait,
-			 TASK_UNINTERRUPTIBLE);
+	wait_var_event(&net->nr_outstanding_calls,
+		       !atomic_read(&net->nr_outstanding_calls));
 	_debug("no outstanding calls");
 
 	kernel_sock_shutdown(net->socket, SHUT_RDWR);
@@ -175,7 +175,7 @@ void afs_put_call(struct afs_call *call)
 		trace_afs_call(call, afs_call_trace_free, 0, o,
 			       __builtin_return_address(0));
 		if (o == 0)
-			wake_up_atomic_t(&net->nr_outstanding_calls);
+			wake_up_var(&net->nr_outstanding_calls);
 	}
 }
 
diff --git a/fs/afs/server.c b/fs/afs/server.c
index 1880f1b6a9f1..a43ef77dabae 100644
--- a/fs/afs/server.c
+++ b/fs/afs/server.c
@@ -25,7 +25,7 @@ static void afs_inc_servers_outstanding(struct afs_net *net)
 static void afs_dec_servers_outstanding(struct afs_net *net)
 {
 	if (atomic_dec_and_test(&net->servers_outstanding))
-		wake_up_atomic_t(&net->servers_outstanding);
+		wake_up_var(&net->servers_outstanding);
 }
 
 /*
@@ -521,8 +521,8 @@ void afs_purge_servers(struct afs_net *net)
 	afs_queue_server_manager(net);
 
 	_debug("wait");
-	wait_on_atomic_t(&net->servers_outstanding, atomic_t_wait,
-			 TASK_UNINTERRUPTIBLE);
+	wait_var_event(&net->servers_outstanding,
+		       !atomic_read(&net->servers_outstanding));
 	_leave("");
 }