* 2004 Paul Serice - NFS Export Operations
*/
-#include <linux/config.h>
#include <linux/init.h>
#include <linux/module.h>
}
static void isofs_read_inode(struct inode *);
-static int isofs_statfs (struct super_block *, struct kstatfs *);
+static int isofs_statfs (struct dentry *, struct kstatfs *);
-static kmem_cache_t *isofs_inode_cachep;
+static struct kmem_cache *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);
+ ei = kmem_cache_alloc(isofs_inode_cachep, GFP_KERNEL);
if (!ei)
return NULL;
return &ei->vfs_inode;
kmem_cache_free(isofs_inode_cachep, ISOFS_I(inode));
}
-static void init_once(void *foo, kmem_cache_t * cachep, unsigned long flags)
+static void init_once(void *foo, struct kmem_cache * cachep, unsigned long flags)
{
struct iso_inode_info *ei = foo;
static void destroy_inodecache(void)
{
- if (kmem_cache_destroy(isofs_inode_cachep))
- printk(KERN_INFO "iso_inode_cache: not all structures were "
- "freed\n");
+ kmem_cache_destroy(isofs_inode_cachep);
}
static int isofs_remount(struct super_block *sb, int *flags, char *data)
struct iso9660_options opt;
struct isofs_sb_info * sbi;
- sbi = kmalloc(sizeof(*sbi), GFP_KERNEL);
+ sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
if (!sbi)
return -ENOMEM;
s->s_fs_info = sbi;
- memset(sbi, 0, sizeof(*sbi));
if (!parse_options((char *)data, &opt))
goto out_freesbi;
return -EINVAL;
}
-static int isofs_statfs (struct super_block *sb, struct kstatfs *buf)
+static int isofs_statfs (struct dentry *dentry, struct kstatfs *buf)
{
+ struct super_block *sb = dentry->d_sb;
+
buf->f_type = ISOFS_SUPER_MAGIC;
buf->f_bsize = sb->s_blocksize;
buf->f_blocks = (ISOFS_SB(sb)->s_nzones
goto abort;
}
- if (nextblk) {
- while (b_off >= (offset + sect_size)) {
- struct inode *ninode;
-
- offset += sect_size;
- if (nextblk == 0)
- goto abort;
- ninode = isofs_iget(inode->i_sb, nextblk, nextoff);
- if (!ninode)
- goto abort;
- firstext = ISOFS_I(ninode)->i_first_extent;
- sect_size = ISOFS_I(ninode)->i_section_size >> ISOFS_BUFFER_BITS(ninode);
- nextblk = ISOFS_I(ninode)->i_next_section_block;
- nextoff = ISOFS_I(ninode)->i_next_section_offset;
- iput(ninode);
-
- if (++section > 100) {
- printk("isofs_get_blocks: More than 100 file sections ?!?, aborting...\n");
- printk("isofs_get_blocks: block=%ld firstext=%u sect_size=%u "
- "nextblk=%lu nextoff=%lu\n",
- iblock, firstext, (unsigned) sect_size,
- nextblk, nextoff);
- goto abort;
- }
+ /* On the last section, nextblk == 0, section size is likely to
+ * exceed sect_size by a partial block, and access beyond the
+ * end of the file will reach beyond the section size, too.
+ */
+ while (nextblk && (b_off >= (offset + sect_size))) {
+ struct inode *ninode;
+
+ offset += sect_size;
+ ninode = isofs_iget(inode->i_sb, nextblk, nextoff);
+ if (!ninode)
+ goto abort;
+ firstext = ISOFS_I(ninode)->i_first_extent;
+ sect_size = ISOFS_I(ninode)->i_section_size >> ISOFS_BUFFER_BITS(ninode);
+ nextblk = ISOFS_I(ninode)->i_next_section_block;
+ nextoff = ISOFS_I(ninode)->i_next_section_offset;
+ iput(ninode);
+
+ if (++section > 100) {
+ printk("isofs_get_blocks: More than 100 file sections ?!?, aborting...\n");
+ printk("isofs_get_blocks: block=%ld firstext=%u sect_size=%u "
+ "nextblk=%lu nextoff=%lu\n",
+ iblock, firstext, (unsigned) sect_size,
+ nextblk, nextoff);
+ goto abort;
}
}
return generic_block_bmap(mapping,block,isofs_get_block);
}
-static struct address_space_operations isofs_aops = {
+static const struct address_space_operations isofs_aops = {
.readpage = isofs_readpage,
.sync_page = block_sync_page,
.bmap = _isofs_bmap
}
inode->i_uid = sbi->s_uid;
inode->i_gid = sbi->s_gid;
- inode->i_blocks = inode->i_blksize = 0;
+ inode->i_blocks = 0;
ei->i_format_parm[0] = 0;
ei->i_format_parm[1] = 0;
isonum_711 (de->ext_attr_length));
/* Set the number of blocks for stat() - should be done before RR */
- inode->i_blksize = PAGE_CACHE_SIZE; /* For stat() only */
inode->i_blocks = (inode->i_size + 511) >> 9;
/*
return inode;
}
-static struct super_block *isofs_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
+static int isofs_get_sb(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data, struct vfsmount *mnt)
{
- return get_sb_bdev(fs_type, flags, dev_name, data, isofs_fill_super);
+ return get_sb_bdev(fs_type, flags, dev_name, data, isofs_fill_super,
+ mnt);
}
static struct file_system_type iso9660_fs_type = {