/*
* linux/fs/isofs/inode.c
*
* (C) 1991 Linus Torvalds - minix filesystem
* 1992, 1993, 1994 Eric Youngdale Modified for ISO 9660 filesystem.
* 1994 Eberhard Moenkeberg - multi session handling.
* 1995 Mark Dobie - allow mounting of some weird VideoCDs and PhotoCDs.
* 1997 Gordon Chaffee - Joliet CDs
* 1998 Eric Lammerts - ISO 9660 Level 3
* 2004 Paul Serice - Inode Support pushed out from 4GB to 128GB
* 2004 Paul Serice - NFS Export Operations
*/
#include <linux/config.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/nls.h>
#include <linux/ctype.h>
#include <linux/smp_lock.h>
#include <linux/statfs.h>
#include <linux/cdrom.h>
#include <linux/parser.h>
#include "isofs.h"
#include "zisofs.h"
#define BEQUIET
static int isofs_hashi(struct dentry *parent, struct qstr *qstr);
static int isofs_hash(struct dentry *parent, struct qstr *qstr);
static int isofs_dentry_cmpi(struct dentry *dentry, struct qstr *a, struct qstr *b);
static int isofs_dentry_cmp(struct dentry *dentry, struct qstr *a, struct qstr *b);
#ifdef CONFIG_JOLIET
static int isofs_hashi_ms(struct dentry *parent, struct qstr *qstr);
static int isofs_hash_ms(struct dentry *parent, struct qstr *qstr);
static int isofs_dentry_cmpi_ms(struct dentry *dentry, struct qstr *a, struct qstr *b);
static int isofs_dentry_cmp_ms(struct dentry *dentry, struct qstr *a, struct qstr *b);
#endif
static void isofs_put_super(struct super_block *sb)
{
struct isofs_sb_info *sbi = ISOFS_SB(sb);
#ifdef CONFIG_JOLIET
if (sbi->s_nls_iocharset) {
unload_nls(sbi->s_nls_iocharset);
sbi->s_nls_iocharset = NULL;
}
#endif
kfree(sbi);
sb->s_fs_info = NULL;
return;
}
static void isofs_read_inode(struct inode *);
static int isofs_statfs (struct super_block *, struct kstatfs *);
static kmem_cache_t *isofs_inode_cachep;
static struct inode *isofs_alloc_inode(struct super_block *sb)
{
struct iso_inode_info *ei;
ei = kmem_cache_alloc(isofs_inode_cachep, SLAB_KERNEL);
if (!ei)
return NULL;
return &ei->vfs_inode;
}
static void isofs_destroy_inode(struct inode *inode)
{
kmem_cache_free(isofs_inode_cachep, ISOFS_I(inode));
}
static void init_once(void *foo, kmem_cache_t * cachep, unsigned long flags)
{
struct iso_inode_info *ei = foo;
if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
SLAB_CTOR_CONSTRUCTOR)
inode_init_once(&ei->vfs_inode);
}
static int init_inodecache(void)
{
isofs_inode_cachep = kmem_cache_create("isofs_inode_cache",
sizeof(struct iso_inode_info),
0, (SLAB_RECLAIM_ACCOUNT|
SLAB_MEM_SPREAD),
init_once, NULL);
if (isofs_inode_cachep == NULL)
return -ENOMEM;
return 0;
}
static void destroy_inodecache(void)
{
if (kmem_cache_destroy(isofs_inode_cachep))
printk(KERN_INFO "iso_inode_cache: not all structures were "
"freed\n");
}
static int isofs_remount(struct super_block
| 