[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/fs/afs/main.c b/ap/os/linux/linux-3.4.x/fs/afs/main.c
new file mode 100644
index 0000000..42dd2e4
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/fs/afs/main.c
@@ -0,0 +1,184 @@
+/* AFS client file system
+ *
+ * Copyright (C) 2002,5 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/completion.h>
+#include <linux/sched.h>
+#include "internal.h"
+
+MODULE_DESCRIPTION("AFS Client File System");
+MODULE_AUTHOR("Red Hat, Inc.");
+MODULE_LICENSE("GPL");
+
+unsigned afs_debug;
+module_param_named(debug, afs_debug, uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(debug, "AFS debugging mask");
+
+static char *rootcell;
+
+module_param(rootcell, charp, 0);
+MODULE_PARM_DESC(rootcell, "root AFS cell name and VL server IP addr list");
+
+struct afs_uuid afs_uuid;
+struct workqueue_struct *afs_wq;
+
+/*
+ * get a client UUID
+ */
+static int __init afs_get_client_UUID(void)
+{
+ struct timespec ts;
+ u64 uuidtime;
+ u16 clockseq;
+ int ret;
+
+ /* read the MAC address of one of the external interfaces and construct
+ * a UUID from it */
+ ret = afs_get_MAC_address(afs_uuid.node, sizeof(afs_uuid.node));
+ if (ret < 0)
+ return ret;
+
+ getnstimeofday(&ts);
+ uuidtime = (u64) ts.tv_sec * 1000 * 1000 * 10;
+ uuidtime += ts.tv_nsec / 100;
+ uuidtime += AFS_UUID_TO_UNIX_TIME;
+ afs_uuid.time_low = uuidtime;
+ afs_uuid.time_mid = uuidtime >> 32;
+ afs_uuid.time_hi_and_version = (uuidtime >> 48) & AFS_UUID_TIMEHI_MASK;
+ afs_uuid.time_hi_and_version = AFS_UUID_VERSION_TIME;
+
+ get_random_bytes(&clockseq, 2);
+ afs_uuid.clock_seq_low = clockseq;
+ afs_uuid.clock_seq_hi_and_reserved =
+ (clockseq >> 8) & AFS_UUID_CLOCKHI_MASK;
+ afs_uuid.clock_seq_hi_and_reserved = AFS_UUID_VARIANT_STD;
+
+ _debug("AFS UUID: %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+ afs_uuid.time_low,
+ afs_uuid.time_mid,
+ afs_uuid.time_hi_and_version,
+ afs_uuid.clock_seq_hi_and_reserved,
+ afs_uuid.clock_seq_low,
+ afs_uuid.node[0], afs_uuid.node[1], afs_uuid.node[2],
+ afs_uuid.node[3], afs_uuid.node[4], afs_uuid.node[5]);
+
+ return 0;
+}
+
+/*
+ * initialise the AFS client FS module
+ */
+static int __init afs_init(void)
+{
+ int ret;
+
+ printk(KERN_INFO "kAFS: Red Hat AFS client v0.1 registering.\n");
+
+ ret = afs_get_client_UUID();
+ if (ret < 0)
+ return ret;
+
+ /* create workqueue */
+ ret = -ENOMEM;
+ afs_wq = alloc_workqueue("afs", 0, 0);
+ if (!afs_wq)
+ return ret;
+
+ /* register the /proc stuff */
+ ret = afs_proc_init();
+ if (ret < 0)
+ goto error_proc;
+
+#ifdef CONFIG_AFS_FSCACHE
+ /* we want to be able to cache */
+ ret = fscache_register_netfs(&afs_cache_netfs);
+ if (ret < 0)
+ goto error_cache;
+#endif
+
+ /* initialise the cell DB */
+ ret = afs_cell_init(rootcell);
+ if (ret < 0)
+ goto error_cell_init;
+
+ /* initialise the VL update process */
+ ret = afs_vlocation_update_init();
+ if (ret < 0)
+ goto error_vl_update_init;
+
+ /* initialise the callback update process */
+ ret = afs_callback_update_init();
+ if (ret < 0)
+ goto error_callback_update_init;
+
+ /* create the RxRPC transport */
+ ret = afs_open_socket();
+ if (ret < 0)
+ goto error_open_socket;
+
+ /* register the filesystems */
+ ret = afs_fs_init();
+ if (ret < 0)
+ goto error_fs;
+
+ return ret;
+
+error_fs:
+ afs_close_socket();
+error_open_socket:
+ afs_callback_update_kill();
+error_callback_update_init:
+ afs_vlocation_purge();
+error_vl_update_init:
+ afs_cell_purge();
+error_cell_init:
+#ifdef CONFIG_AFS_FSCACHE
+ fscache_unregister_netfs(&afs_cache_netfs);
+error_cache:
+#endif
+ afs_proc_cleanup();
+error_proc:
+ destroy_workqueue(afs_wq);
+ rcu_barrier();
+ printk(KERN_ERR "kAFS: failed to register: %d\n", ret);
+ return ret;
+}
+
+/* XXX late_initcall is kludgy, but the only alternative seems to create
+ * a transport upon the first mount, which is worse. Or is it?
+ */
+late_initcall(afs_init); /* must be called after net/ to create socket */
+
+/*
+ * clean up on module removal
+ */
+static void __exit afs_exit(void)
+{
+ printk(KERN_INFO "kAFS: Red Hat AFS client v0.1 unregistering.\n");
+
+ afs_fs_exit();
+ afs_kill_lock_manager();
+ afs_close_socket();
+ afs_purge_servers();
+ afs_callback_update_kill();
+ afs_vlocation_purge();
+ destroy_workqueue(afs_wq);
+ afs_cell_purge();
+#ifdef CONFIG_AFS_FSCACHE
+ fscache_unregister_netfs(&afs_cache_netfs);
+#endif
+ afs_proc_cleanup();
+ rcu_barrier();
+}
+
+module_exit(afs_exit);