[PATCH RFC v2 00/20] mm: optimize unnecessary loads due to ptep_get() and friends out

[Dave Hansen]

One of my nits about v1 was that it didn't really frame the series
precisely. It talks about "optimization" instead of fundamentally
changing the way that the kernel deals with folded page table levels.

The optimization that this *wants* to talk about kinda falls out of that
refactoring. It's not really the core of the series, IMNHO.

This series effectively changes the rules about where and how folded
page table levels can be manipulated. In doing that, the door is opened
to optimizing out the unnecessary loads.

Oh, and I'm pulling linux-arm-kernel at lists.infradead.org off cc. If
anyone has the juju, please fix it so it stops spamming replies with
"Your message to linux-arm-kernel awaits moderator approval".