On Tue, Apr 28, 2020 at 12:44:42PM -0700, Matthew Wilcox wrote:
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx> Pages which are in use as page tables have some space unused in struct page. It would be handy to have a pointer to the struct mm_struct that they belong to so that we can handle uncorrectable errors in page tables more gracefully. There are a few other things we could use it for too, such as checking that the page table entry actually belongs to the task we think it ought to. This patch series does none of that, but does lay the groundwork for it. Matthew Wilcox (Oracle) (7):
How does it work for kernel side of virtual address space? And your employer may be interested in semantics around CONFIG_ARCH_WANT_HUGE_PMD_SHARE :P -- Kirill A. Shutemov
