On Wed, 2025-02-12 at 03:13 +1100, Andrew Donnellan wrote: > Support page table check on all PowerPC platforms. This works by > serialising assignments, reassignments and clears of page table > entries at each level in order to ensure that anonymous mappings > have at most one writable consumer, and likewise that file-backed > mappings are not simultaneously also anonymous mappings. > > In order to support this infrastructure, a number of stubs must be > defined for all powerpc platforms. Additionally, seperate > set_pte_at() > and set_pte_at_unchecked(), to allow for internal, uninstrumented > mappings. Talking to Maddy about this off-list - given that this series touches on generic code and several architectures, would it be best to take it through the mm tree rather than powerpc? -- Andrew Donnellan OzLabs, ADL Canberra ajd@xxxxxxxxxxxxx IBM Australia Limited
