It turns out that we have unistd.h and kvm headers for some architectures but not others. We are thus unable to use e.g. usefaultfd on these systems unless system headers have been updated.
Fix up update-linux-headers.sh to make sure we auto-updates all architectures which have linux-headers/ (unfortunately this still does not mean "all linux systems"). Tested on x86 only. Pls consider merging this through the ARM tree. changes from v4: dropped s390 chunks - already upstream Michael S. Tsirkin (3): update-linux-headers.sh: unistd.h, kvm consistency linux-headers: add unistd.h on all arches linux-headers: add kvm header for mips linux-headers/asm-arm/bitsperlong.h | 1 + linux-headers/asm-arm64/bitsperlong.h | 24 + linux-headers/asm-generic/bitsperlong.h | 16 + linux-headers/asm-generic/unistd.h | 944 ++++++++++++++++++++++++++++++++ linux-headers/asm-mips/bitsperlong.h | 9 + linux-headers/asm-mips/kvm.h | 25 +- linux-headers/asm-mips/sgidefs.h | 45 ++ linux-headers/asm-mips/unistd.h | 44 +- linux-headers/asm-powerpc/bitsperlong.h | 13 + linux-headers/asm-s390/bitsperlong.h | 14 + linux-headers/asm-x86/bitsperlong.h | 14 + scripts/update-linux-headers.sh | 22 +- 12 files changed, 1156 insertions(+), 15 deletions(-) create mode 100644 linux-headers/asm-arm/bitsperlong.h create mode 100644 linux-headers/asm-arm64/bitsperlong.h create mode 100644 linux-headers/asm-generic/bitsperlong.h create mode 100644 linux-headers/asm-generic/unistd.h create mode 100644 linux-headers/asm-mips/bitsperlong.h create mode 100644 linux-headers/asm-mips/sgidefs.h create mode 100644 linux-headers/asm-powerpc/bitsperlong.h create mode 100644 linux-headers/asm-s390/bitsperlong.h create mode 100644 linux-headers/asm-x86/bitsperlong.h -- MST