On Mon, Dec 4, 2017 at 6:07 AM, Thomas Gleixner <[email protected]> wrote: > From: Thomas Gleixner <[email protected]> > > LDT is not really commonly used on 64bit so the overhead of populating the > fixmap entries on context switch for the rare LDT syscall users is a > reasonable trade off vs. having extra dynamically managed mapping space per > process. >
Hmm, I wonder just how slow this is. It might be okay. It's certainly not the way I imagined it working. --Andy
