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
