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get rid of hostfs_read_inode()

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There are only two call sites; in one (hostfs_iget()) it's actually
a no-op and in another (fill_super()) it's easier to expand the
damn thing and use what we know about its arguments to simplify
it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2010-06-06 18:43:19 -04:00
parent 601d2c38b9
commit 52b209f7b8
1 changed files with 16 additions and 53 deletions
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69
fs/hostfs/hostfs_kern.c
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@ -204,50 +204,11 @@ static char *follow_link(char *link)
return ERR_PTR(n);
}
static int hostfs_read_inode(struct inode *ino)
{
char *name;
int err = 0;
/*
* Unfortunately, we are called from iget() when we don't have a dentry
* allocated yet.
*/
if (list_empty(&ino->i_dentry))
goto out;
err = -ENOMEM;
name = inode_name(ino, 0);
if (name == NULL)
goto out;
if (file_type(name, NULL, NULL) == OS_TYPE_SYMLINK) {
name = follow_link(name);
if (IS_ERR(name)) {
err = PTR_ERR(name);
goto out;
}
}
err = read_name(ino, name);
kfree(name);
out:
return err;
}
static struct inode *hostfs_iget(struct super_block *sb)
{
struct inode *inode;
long ret;
inode = new_inode(sb);
struct inode *inode = new_inode(sb);
if (!inode)
return ERR_PTR(-ENOMEM);
ret = hostfs_read_inode(inode);
if (ret < 0) {
iput(inode);
return ERR_PTR(ret);
}
return inode;
}
@ -979,13 +940,23 @@ static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent)
sprintf(host_root_path, "%s/%s", root_ino, req_root);
root_inode = hostfs_iget(sb);
if (IS_ERR(root_inode)) {
err = PTR_ERR(root_inode);
root_inode = new_inode(sb);
if (!root_inode)
goto out;
}
err = init_inode(root_inode, NULL);
root_inode->i_op = &hostfs_dir_iops;
root_inode->i_fop = &hostfs_dir_fops;
if (file_type(host_root_path, NULL, NULL) == OS_TYPE_SYMLINK) {
char *name = follow_link(host_root_path);
if (IS_ERR(name))
err = PTR_ERR(name);
else
err = read_name(root_inode, name);
kfree(name);
} else {
err = read_name(root_inode, host_root_path);
}
if (err)
goto out_put;
@ -994,14 +965,6 @@ static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent)
if (sb->s_root == NULL)
goto out_put;
err = hostfs_read_inode(root_inode);
if (err) {
/* No iput in this case because the dput does that for us */
dput(sb->s_root);
sb->s_root = NULL;
goto out;
}
return 0;
out_put: