static int minix_symlink(struct inode * dir, struct dentry *dentry,
const char * symname)
{
int err = -ENAMETOOLONG;
int i = strlen(symname)+1;
struct inode * inode;
if (i > dir->i_sb->s_blocksize)
goto out;
inode = minix_new_inode(dir, &err);
if (!inode)
goto out;
inode->i_mode = S_IFLNK | 0777;
minix_set_inode(inode, 0);
err = page_symlink(inode, symname, i);
if (err)
goto out_fail;
err = add_nondir(dentry, inode);
out:
return err;
out_fail:
dec_count(inode);
iput(inode);
goto out;
}
/*
* The minix V2 function to read an inode.
*/
static struct inode *V2_minix_iget(struct inode *inode)
{
struct buffer_head * bh;
struct minix2_inode * raw_inode;
struct minix_inode_info *minix_inode = minix_i(inode);
int i;
raw_inode = minix_V2_raw_inode(inode->i_sb, inode->i_ino, &bh);
if (!raw_inode) {
iget_failed(inode);
return ERR_PTR(-EIO);
}
inode->i_mode = raw_inode->i_mode;
i_uid_write(inode, raw_inode->i_uid);
i_gid_write(inode, raw_inode->i_gid);
set_nlink(inode, raw_inode->i_nlinks);
inode->i_size = raw_inode->i_size;
inode->i_mtime.tv_sec = raw_inode->i_mtime;
inode->i_atime.tv_sec = raw_inode->i_atime;
inode->i_ctime.tv_sec = raw_inode->i_ctime;
inode->i_mtime.tv_nsec = 0;
inode->i_atime.tv_nsec = 0;
inode->i_ctime.tv_nsec = 0;
inode->i_blocks = 0;
for (i = 0; i < 10; i++)
minix_inode->u.i2_data[i] = raw_inode->i_zone[i];
minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0]));
brelse(bh);
unlock_new_inode(inode);
return inode;
}
static int minix_mkdir(struct inode * dir, struct dentry *dentry, int mode)
{
struct inode * inode;
int err;
inode_inc_link_count(dir);
inode = minix_new_inode(dir, S_IFDIR | mode, &err);
if (!inode)
goto out_dir;
minix_set_inode(inode, 0);
inode_inc_link_count(inode);
err = minix_make_empty(inode, dir);
if (err)
goto out_fail;
err = minix_add_link(dentry, inode);
if (err)
goto out_fail;
d_instantiate(dentry, inode);
out:
return err;
out_fail:
inode_dec_link_count(inode);
inode_dec_link_count(inode);
iput(inode);
out_dir:
inode_dec_link_count(dir);
goto out;
}
/*
* The minix V2 function to read an inode.
*/
static void V2_minix_read_inode(struct inode * inode)
{
struct buffer_head * bh;
struct minix2_inode * raw_inode;
struct minix_inode_info *minix_inode = minix_i(inode);
int i;
raw_inode = minix_V2_raw_inode(inode->i_sb, inode->i_ino, &bh);
if (!raw_inode) {
make_bad_inode(inode);
return;
}
inode->i_mode = raw_inode->i_mode;
inode->i_uid = (uid_t)raw_inode->i_uid;
inode->i_gid = (gid_t)raw_inode->i_gid;
inode->i_nlink = raw_inode->i_nlinks;
inode->i_size = raw_inode->i_size;
inode->i_mtime.tv_sec = raw_inode->i_mtime;
inode->i_atime.tv_sec = raw_inode->i_atime;
inode->i_ctime.tv_sec = raw_inode->i_ctime;
inode->i_mtime.tv_nsec = 0;
inode->i_atime.tv_nsec = 0;
inode->i_ctime.tv_nsec = 0;
inode->i_blocks = 0;
for (i = 0; i < 10; i++)
minix_inode->u.i2_data[i] = raw_inode->i_zone[i];
minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0]));
brelse(bh);
}
static int minix_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
{
int error;
struct inode *inode = minix_new_inode(dir, mode, &error);
if (inode) {
minix_set_inode(inode, 0);
mark_inode_dirty(inode);
d_tmpfile(dentry, inode);
}
return error;
}
static int minix_mknod(struct inode * dir, struct dentry *dentry, int mode, dev_t rdev)
{
int error;
struct inode *inode;
if (!old_valid_dev(rdev))
return -EINVAL;
inode = minix_new_inode(dir, mode, &error);
if (inode) {
minix_set_inode(inode, rdev);
mark_inode_dirty(inode);
error = add_nondir(dentry, inode);
}
return error;
}
static int minix_mkdir(struct inode * dir, struct dentry *dentry, int mode)
{
struct inode * inode;
int err = -EMLINK;
if (dir->i_nlink >= minix_sb(dir->i_sb)->s_link_max)
goto out;
inc_count(dir);
inode = minix_new_inode(dir, &err);
if (!inode)
goto out_dir;
inode->i_mode = S_IFDIR | mode;
if (dir->i_mode & S_ISGID)
inode->i_mode |= S_ISGID;
minix_set_inode(inode, 0);
inc_count(inode);
err = minix_make_empty(inode, dir);
if (err)
goto out_fail;
err = minix_add_link(dentry, inode);
if (err)
goto out_fail;
d_instantiate(dentry, inode);
out:
return err;
out_fail:
dec_count(inode);
dec_count(inode);
iput(inode);
out_dir:
dec_count(dir);
goto out;
}
