Re: kdbus: add node and filesystem implementation

From: Sasha Levin
Date: Fri Nov 21 2014 - 10:55:53 EST


On 11/21/2014 12:02 AM, Greg Kroah-Hartman wrote:
> +static struct dentry *fs_dir_iop_lookup(struct inode *dir,
> + struct dentry *dentry,
> + unsigned int flags)
> +{
> + struct dentry *dnew = NULL;
> + struct kdbus_node *parent;
> + struct kdbus_node *node;
> + struct inode *inode;
> +
> + parent = kdbus_node_from_dentry(dentry->d_parent);
> + if (!kdbus_node_acquire(parent))
> + return NULL;
> +
> + /* returns reference to _acquired_ child node */
> + node = kdbus_node_find_child(parent, dentry->d_name.name);
> + if (node) {
> + dentry->d_fsdata = node;
> + inode = fs_inode_get(dir->i_sb, node);
> + if (IS_ERR(inode))
> + dnew = ERR_CAST(inode);
> + else
> + dnew = d_materialise_unique(dentry, inode);

d_materialise_unique() is gone in Al's fs tree:

[mandatory]
d_materialise_unique() is gone; d_splice_alias() does everything you
need now. Remember that they have opposite orders of arguments ;-/

Maybe it's worth basing your git tree on top of Al's rather than a random
-rc, since it's now a filesystem?


Thanks,
Sasha
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