forked from luck/tmp_suning_uos_patched
76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
|
/* General filesystem local caching manager
|
||
|
|
*
|
||
|
|
* Copyright (C) 2004-2007 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define FSCACHE_DEBUG_LEVEL CACHE
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/sched.h>
|
||
|
|
#include <linux/completion.h>
|
||
|
|
#include <linux/slab.h>
|
||
|
|
#include "internal.h"
|
||
|
|
|
||
|
|
MODULE_DESCRIPTION("FS Cache Manager");
|
||
|
|
MODULE_AUTHOR("Red Hat, Inc.");
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
|
||
|
|
unsigned fscache_defer_lookup = 1;
|
||
|
|
module_param_named(defer_lookup, fscache_defer_lookup, uint,
|
||
|
|
S_IWUSR | S_IRUGO);
|
||
|
|
MODULE_PARM_DESC(fscache_defer_lookup,
|
||
|
|
"Defer cookie lookup to background thread");
|
||
|
|
|
||
|
|
unsigned fscache_defer_create = 1;
|
||
|
|
module_param_named(defer_create, fscache_defer_create, uint,
|
||
|
|
S_IWUSR | S_IRUGO);
|
||
|
|
MODULE_PARM_DESC(fscache_defer_create,
|
||
|
|
"Defer cookie creation to background thread");
|
||
|
|
|
||
|
|
unsigned fscache_debug;
|
||
|
|
module_param_named(debug, fscache_debug, uint,
|
||
|
|
S_IWUSR | S_IRUGO);
|
||
|
|
MODULE_PARM_DESC(fscache_debug,
|
||
|
|
"FS-Cache debugging mask");
|
||
|
|
|
||
|
|
struct kobject *fscache_root;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* initialise the fs caching module
|
||
|
|
*/
|
||
|
|
static int __init fscache_init(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = slow_work_register_user();
|
||
|
|
if (ret < 0)
|
||
|
|
goto error_slow_work;
|
||
|
|
|
||
|
|
printk(KERN_NOTICE "FS-Cache: Loaded\n");
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
error_slow_work:
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
fs_initcall(fscache_init);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* clean up on module removal
|
||
|
|
*/
|
||
|
|
static void __exit fscache_exit(void)
|
||
|
|
{
|
||
|
|
_enter("");
|
||
|
|
|
||
|
|
slow_work_unregister_user();
|
||
|
|
printk(KERN_NOTICE "FS-Cache: Unloaded\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
module_exit(fscache_exit);
|