On Mon, Mar 15, 2021 at 07:40:14PM +0000, Matthew Wilcox wrote:

The reason I didn't go with 'head' is that traditionally 'head' implies
that there are tail pages.  It would be weird to ask 'if (HeadHead(head))'
That's currently spelled 'if (FolioMulti(folio))'.  But it can be changed
if there's a really better alternative.  It'll make me more grumpy if
somebody comes up with a really good alternative in six months.

The folio name keeps growing on me.  Still not perfect, but I do like
that it is:

 a) short

and

 b) very different from page