cregit-Linux how code gets into the kernel

Release 4.10 fs/afs/main.c

Directory: fs/afs
/* AFS client file system
 * Copyright (C) 2002,5 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (
 * 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 <linux/random.h>
#include "internal.h"

MODULE_AUTHOR("Red Hat, Inc.");

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; }


david howellsdavid howells215100.00%3100.00%

/* * 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; }


david howellsdavid howells17976.50%872.73%
tejun heotejun heo3514.96%19.09%
andrew mortonandrew morton198.12%19.09%
david s. millerdavid s. miller10.43%19.09%

/* 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(); }


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tejun heotejun heo46.90%112.50%


Overall Contributors

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tejun heotejun heo447.19%15.26%
andrew mortonandrew morton365.88%15.26%
david s. millerdavid s. miller132.12%15.26%
rusty russellrusty russell71.14%15.26%
alexey dobriyanalexey dobriyan30.49%15.26%
paul bollepaul bolle10.16%15.26%
Directory: fs/afs
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