On 08/04/2015 01:36 PM, Leonid Yegoshin wrote:
David, Note: Excuse me for bothering you but if guard page logic doesn't work anymore then it can be scraped. It allows me to optimize some cache flushes in VMAP area - instead of flushing a full cache, just flush a range of pages.
I don't know what the purpose of guard pages is. I thought it was to produce an OOPs message if you accessed just beyond the end of the vmap area. If people are using them for some other reason, then I am not aware of it.
David.
