add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/fs/afs/main.c
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@@ -1,12 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /* AFS client file system
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  *
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  * Copyright (C) 2002,5 Red Hat, Inc. All Rights Reserved.
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  * Written by David Howells (dhowells@redhat.com)
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License
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- * as published by the Free Software Foundation; either version
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- * 2 of the License, or (at your option) any later version.
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  */
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 #include <linux/module.h>
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@@ -22,6 +18,7 @@
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 MODULE_DESCRIPTION("AFS Client File System");
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 MODULE_AUTHOR("Red Hat, Inc.");
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 MODULE_LICENSE("GPL");
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+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
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 unsigned afs_debug;
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 module_param_named(debug, afs_debug, uint, S_IWUSR | S_IRUGO);
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@@ -82,16 +79,18 @@
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 	mutex_init(&net->socket_mutex);
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 	net->cells = RB_ROOT;
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-	seqlock_init(&net->cells_lock);
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+	init_rwsem(&net->cells_lock);
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 	INIT_WORK(&net->cells_manager, afs_manage_cells);
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 	timer_setup(&net->cells_timer, afs_cells_timer, 0);
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+	mutex_init(&net->cells_alias_lock);
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 	mutex_init(&net->proc_cells_lock);
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 	INIT_HLIST_HEAD(&net->proc_cells);
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 	seqlock_init(&net->fs_lock);
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 	net->fs_servers = RB_ROOT;
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-	INIT_LIST_HEAD(&net->fs_updates);
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+	INIT_LIST_HEAD(&net->fs_probe_fast);
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+	INIT_LIST_HEAD(&net->fs_probe_slow);
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 	INIT_HLIST_HEAD(&net->fs_proc);
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 	INIT_HLIST_HEAD(&net->fs_addresses4);
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@@ -100,6 +99,9 @@
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 	INIT_WORK(&net->fs_manager, afs_manage_servers);
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 	timer_setup(&net->fs_timer, afs_servers_timer, 0);
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+	INIT_WORK(&net->fs_prober, afs_fs_probe_dispatcher);
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+	timer_setup(&net->fs_probe_timer, afs_fs_probe_timer, 0);
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+	atomic_set(&net->servers_outstanding, 1);
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 	ret = -ENOMEM;
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 	sysnames = kzalloc(sizeof(*sysnames), GFP_KERNEL);
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@@ -130,6 +132,7 @@
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 error_open_socket:
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 	net->live = false;
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+	afs_fs_probe_cleanup(net);
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 	afs_cell_purge(net);
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 	afs_purge_servers(net);
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 error_cell_init:
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@@ -150,6 +153,7 @@
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 	struct afs_net *net = afs_net(net_ns);
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 	net->live = false;
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+	afs_fs_probe_cleanup(net);
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 	afs_cell_purge(net);
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 	afs_purge_servers(net);
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 	afs_close_socket(net);