Hi, This series is an update to the arm64 tagged address ABI documentation patches v8, posted here: http://lkml.kernel.org/r/20190815154403.16473-1-catalin.marinas@xxxxxxx >From v8, I dropped patches 2 and 3 as they've been queued by Will via the arm64 tree. Reposting patch 1 (unmodified) as it should be merged via the mm tree. Changes in v9: - Replaced the emphasized/bold font with a typewriter one for function/constant names - Simplified the mmap/brk bullet points when describing the tagged pointer origin - Reworded expected syscall behaviour with valid tagged pointers - Reworded the prctl/ioctl restrictions to clarify the allowed tagged pointers w.r.t. user data access by the kernel Catalin Marinas (1): mm: untag user pointers in mmap/munmap/mremap/brk Vincenzo Frascino (2): arm64: Define Documentation/arm64/tagged-address-abi.rst arm64: Relax Documentation/arm64/tagged-pointers.rst Documentation/arm64/tagged-address-abi.rst | 156 +++++++++++++++++++++ Documentation/arm64/tagged-pointers.rst | 23 ++- mm/mmap.c | 5 + mm/mremap.c | 6 +- 4 files changed, 178 insertions(+), 12 deletions(-) create mode 100644 Documentation/arm64/tagged-address-abi.rst
