On 2020-05-22 05:52, Kirill A. Shutemov wrote: ...
@@ -2773,6 +2780,7 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address, #define FOLL_LONGTERM 0x10000 /* mapping lifetime is indefinite: see below */ #define FOLL_SPLIT_PMD 0x20000 /* split huge pmd before returning */ #define FOLL_PIN 0x40000 /* pages must be released via unpin_user_page */ +#define FOLL_KVM 0x80000 /* access to VM_KVM_PROTECTED VMAs */
I grabbed 0x80000 already, for FOLL_FAST_ONLY. :) thanks, -- John Hubbard NVIDIA
