mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 08:14:15 +08:00
114 lines
2.4 KiB
C
114 lines
2.4 KiB
C
/*
|
|
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
|
|
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
|
|
*
|
|
* This copyrighted material is made available to anyone wishing to use,
|
|
* modify, copy, or redistribute it subject to the terms and conditions
|
|
* of the GNU General Public License v.2.
|
|
*/
|
|
|
|
#include <linux/sched.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/completion.h>
|
|
#include <linux/buffer_head.h>
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/gfs2_ondisk.h>
|
|
|
|
#include "gfs2.h"
|
|
#include "lm_interface.h"
|
|
#include "incore.h"
|
|
#include "ops_fstype.h"
|
|
#include "sys.h"
|
|
#include "util.h"
|
|
|
|
/**
|
|
* init_gfs2_fs - Register GFS2 as a filesystem
|
|
*
|
|
* Returns: 0 on success, error code on failure
|
|
*/
|
|
|
|
static int __init init_gfs2_fs(void)
|
|
{
|
|
int error;
|
|
|
|
gfs2_init_lmh();
|
|
|
|
error = gfs2_sys_init();
|
|
if (error)
|
|
return error;
|
|
|
|
error = -ENOMEM;
|
|
|
|
gfs2_glock_cachep = kmem_cache_create("gfs2_glock",
|
|
sizeof(struct gfs2_glock),
|
|
0, 0, NULL, NULL);
|
|
if (!gfs2_glock_cachep)
|
|
goto fail;
|
|
|
|
gfs2_inode_cachep = kmem_cache_create("gfs2_inode",
|
|
sizeof(struct gfs2_inode),
|
|
0, 0, NULL, NULL);
|
|
if (!gfs2_inode_cachep)
|
|
goto fail;
|
|
|
|
gfs2_bufdata_cachep = kmem_cache_create("gfs2_bufdata",
|
|
sizeof(struct gfs2_bufdata),
|
|
0, 0, NULL, NULL);
|
|
if (!gfs2_bufdata_cachep)
|
|
goto fail;
|
|
|
|
error = register_filesystem(&gfs2_fs_type);
|
|
if (error)
|
|
goto fail;
|
|
|
|
error = register_filesystem(&gfs2meta_fs_type);
|
|
if (error)
|
|
goto fail_unregister;
|
|
|
|
printk("GFS2 (built %s %s) installed\n", __DATE__, __TIME__);
|
|
|
|
return 0;
|
|
|
|
fail_unregister:
|
|
unregister_filesystem(&gfs2_fs_type);
|
|
fail:
|
|
if (gfs2_bufdata_cachep)
|
|
kmem_cache_destroy(gfs2_bufdata_cachep);
|
|
|
|
if (gfs2_inode_cachep)
|
|
kmem_cache_destroy(gfs2_inode_cachep);
|
|
|
|
if (gfs2_glock_cachep)
|
|
kmem_cache_destroy(gfs2_glock_cachep);
|
|
|
|
gfs2_sys_uninit();
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* exit_gfs2_fs - Unregister the file system
|
|
*
|
|
*/
|
|
|
|
static void __exit exit_gfs2_fs(void)
|
|
{
|
|
unregister_filesystem(&gfs2_fs_type);
|
|
unregister_filesystem(&gfs2meta_fs_type);
|
|
|
|
kmem_cache_destroy(gfs2_bufdata_cachep);
|
|
kmem_cache_destroy(gfs2_inode_cachep);
|
|
kmem_cache_destroy(gfs2_glock_cachep);
|
|
|
|
gfs2_sys_uninit();
|
|
}
|
|
|
|
MODULE_DESCRIPTION("Global File System");
|
|
MODULE_AUTHOR("Red Hat, Inc.");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
module_init(init_gfs2_fs);
|
|
module_exit(exit_gfs2_fs);
|
|
|