Re: [PATCH 15/14] arm: Rename PMD_ORDER to PMD_BITS

Matthew Wilcox
2022-07-03T21:55:04Z

On Sun, Jul 03, 2022 at 10:16:45PM +0100, Russell King (Oracle) wrote:
> On Sun, Jul 03, 2022 at 10:14:41PM +0100, Matthew Wilcox (Oracle) wrote:
> > This is the number of bits used by a PMD entry, not the order of a PMD.
>
> No, it's not the number of bits. A PMD entry doesn't fit in 2 or 3 bits.
> This is even more confusing.

Well, what is it then? The order of something is PAGE_SIZE << n, and
that doesn't seem to be what this is. Happy to call it whatever you
want to call it.