On Sat, Mar 19, 2022 at 12:28:30AM -0600, Jane Chu wrote: > Mark poisoned page as not present, and to reverse the 'np' effect, > restate the _PAGE_PRESENT bit. Please refer to discussions here for > reason behind the decision. > https://lore.kernel.org/all/CAPcyv4hrXPb1tASBZUg-GgdVs0OOFKXMXLiHmktg_kFi7YBMyQ@xxxxxxxxxxxxxx/ I think it would be good to summarize the conclusion here instead of just linking to it. > +static int _set_memory_present(unsigned long addr, int numpages) > +{ > + return change_page_attr_set(&addr, numpages, __pgprot(_PAGE_PRESENT), 0); > +} What is the point of this trivial helper with a single caller?
