/* Convert atom to name */
static int unatom(struct inode *atable, atom_t atom, char *name, unsigned size)
{
if(DEBUG_MODE_K==1)
{
printf("\t\t\t\t%25s[K] %25s %4d #in\n",__FILE__,__func__,__LINE__);
}
struct sb *sb = tux_sb(atable->i_sb);
struct buffer_head *buffer;
int err;
loff_t where = unatom_dict_read(atable, atom);
if (where < 0) {
err = where;
goto error;
}
buffer = blockread(mapping(atable), where >> sb->blockbits);
if (!buffer) {
err = -EIO;
goto error;
}
tux_dirent *entry = bufdata(buffer) + (where & sb->blockmask);
if (entry_atom(entry) != atom) {
tux3_fs_error(sb, "atom %x reverse entry broken", atom);
err = -EIO;
goto error_blockput;
}
unsigned len = entry->name_len;
if (size) {
if (len > size) {
err = -ERANGE;
goto error_blockput;
}
memcpy(name, entry->name, len);
}
blockput(buffer);
return len;
error_blockput:
blockput(buffer);
error:
return err;
}
/* Find atom of name */
static int find_atom(struct inode *atable, const char *name, unsigned len,
atom_t *atom)
{
struct sb *sb = tux_sb(atable->i_sb);
struct buffer_head *buffer;
struct tux3_dirent *entry;
entry = tux_find_entry(atable, name, len, &buffer, sb->atomdictsize);
if (IS_ERR(entry)) {
int err = PTR_ERR(entry);
if (err == -ENOENT)
return -ENODATA;
return err;
}
*atom = entry_atom(entry);
blockput(buffer);
return 0;
}
/* Find atom of name */
static int find_atom(struct inode *atable, const char *name, unsigned len,
atom_t *atom)
{
if(DEBUG_MODE_K==1)
{
printf("\t\t\t\t%25s[K] %25s %4d #in\n",__FILE__,__func__,__LINE__);
}
struct sb *sb = tux_sb(atable->i_sb);
struct buffer_head *buffer;
tux_dirent *entry;
entry = tux_find_entry(atable, name, len, &buffer, sb->atomdictsize);
if (IS_ERR(entry)) {
int err = PTR_ERR(entry);
if (err == -ENOENT)
return -ENODATA;
return err;
}
*atom = entry_atom(entry);
blockput(buffer);
return 0;
}
