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

[Nick Piggin]

Christoph Hellwig wrote:
> 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.

Is that appropriate for a non buffer based filesystem?


> And we should
> really get that one merged for 2.6.22.

Dave asked me about that the other day (in relation to the ->fault ops)...
I have no problem merging it for 2.6.22 and rebasing my patches on top.

--
SUSE Labs, Novell Inc.
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