Re: [PATCH 2/2] AFS: Implement shared-writable mmap

[Christoph Hellwig]

On Tue, May 15, 2007 at 04:52:31PM +0100, David Howells wrote:
> +int afs_page_mkwrite(struct vm_area_struct *vma, struct page *page)
> +{
> +	struct afs_vnode *vnode = AFS_FS_I(vma->vm_file->f_mapping->host);
> +	struct key *key = vma->vm_file->private_data;
> +	int ret;
> +
> +	_enter("{{%x:%u},%x},{%lx}",
> +	       vnode->fid.vid, vnode->fid.vnode, key_serial(key), page->index);
> +
> +	lock_page(page);
> +	ret = afs_prepare_write(vma->vm_file, page, 0, 0);
> +	unlock_page(page);
> +
> +	_leave(" = %d", ret);
> +	return ret;
> +}

It looks like you really want Dave's generic page_mkwrite.  And we should
really get that one merged for 2.6.22.

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