Hi, New version of the futex2 patches. These are actually tested and appear to work as expected. I'm hoping to get at least the first 3 patches merged such that Jens can base the io_uring futex patches on them. Changes since v0: - switched over to 'unsigned long' for values (Arnd) - unshare vmalloc_huge() (Willy) - added wait/requeue syscalls - fixed NUMA to support sparse nodemask - added FUTEX2_n vs FUTEX2_NUMA check to ensure the node_id fits in the futex - added selftests - fixed a ton of silly bugs --- arch/alpha/kernel/syscalls/syscall.tbl | 3 + arch/arm/tools/syscall.tbl | 3 + arch/arm64/include/asm/unistd32.h | 6 + arch/ia64/kernel/syscalls/syscall.tbl | 3 + arch/m68k/kernel/syscalls/syscall.tbl | 3 + arch/microblaze/kernel/syscalls/syscall.tbl | 3 + arch/mips/kernel/syscalls/syscall_n32.tbl | 3 + arch/mips/kernel/syscalls/syscall_n64.tbl | 3 + arch/mips/kernel/syscalls/syscall_o32.tbl | 3 + arch/parisc/kernel/syscalls/syscall.tbl | 3 + arch/powerpc/kernel/syscalls/syscall.tbl | 3 + arch/s390/kernel/syscalls/syscall.tbl | 3 + arch/sh/kernel/syscalls/syscall.tbl | 3 + arch/sparc/kernel/syscalls/syscall.tbl | 3 + arch/x86/entry/syscalls/syscall_32.tbl | 3 + arch/x86/entry/syscalls/syscall_64.tbl | 3 + arch/xtensa/kernel/syscalls/syscall.tbl | 3 + include/linux/futex.h | 14 +- include/linux/syscalls.h | 10 + include/linux/vmalloc.h | 1 + include/uapi/asm-generic/unistd.h | 9 +- include/uapi/linux/futex.h | 17 +- kernel/futex/core.c | 144 +++++++++++--- kernel/futex/futex.h | 96 ++++++++- kernel/futex/pi.c | 12 +- kernel/futex/requeue.c | 18 +- kernel/futex/syscalls.c | 221 ++++++++++++++++----- kernel/futex/waitwake.c | 80 ++++---- kernel/sys_ni.c | 3 + mm/vmalloc.c | 7 + .../selftests/futex/functional/futex_requeue.c | 100 +++++++++- .../selftests/futex/functional/futex_wait.c | 56 +++++- .../futex/functional/futex_wait_timeout.c | 14 +- .../futex/functional/futex_wait_wouldblock.c | 28 ++- .../selftests/futex/functional/futex_waitv.c | 15 +- tools/testing/selftests/futex/functional/run.sh | 6 + tools/testing/selftests/futex/include/futex2test.h | 39 ++++ 37 files changed, 777 insertions(+), 167 deletions(-)
