From: Willem de Bruijn <willemb@xxxxxxxxxx> Enable nanosecond timeouts for epoll. Analogous to pselect and ppoll, introduce an epoll_wait syscall variant that takes a struct timespec instead of int timeout. See patch 2 for more details. patch 1: pre patch cleanup: convert internal epoll to timespec64 patch 2: add syscall patch 3: wire up syscall patch 4: selftest Applies cleanly to next-20201120 No update to man-pages since v3, see commit https://lore.kernel.org/patchwork/patch/1341103/ Willem de Bruijn (4): epoll: convert internal api to timespec64 epoll: add syscall epoll_pwait2 epoll: wire up syscall epoll_pwait2 selftests/filesystems: expand epoll with epoll_pwait2 arch/alpha/kernel/syscalls/syscall.tbl | 1 + arch/arm/tools/syscall.tbl | 1 + arch/arm64/include/asm/unistd.h | 2 +- arch/arm64/include/asm/unistd32.h | 2 + arch/ia64/kernel/syscalls/syscall.tbl | 1 + arch/m68k/kernel/syscalls/syscall.tbl | 1 + arch/microblaze/kernel/syscalls/syscall.tbl | 1 + arch/mips/kernel/syscalls/syscall_n32.tbl | 1 + arch/mips/kernel/syscalls/syscall_n64.tbl | 1 + arch/mips/kernel/syscalls/syscall_o32.tbl | 1 + arch/parisc/kernel/syscalls/syscall.tbl | 1 + arch/powerpc/kernel/syscalls/syscall.tbl | 1 + arch/s390/kernel/syscalls/syscall.tbl | 1 + arch/sh/kernel/syscalls/syscall.tbl | 1 + arch/sparc/kernel/syscalls/syscall.tbl | 1 + arch/x86/entry/syscalls/syscall_32.tbl | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 1 + arch/xtensa/kernel/syscalls/syscall.tbl | 1 + fs/eventpoll.c | 130 ++++++++++++++---- include/linux/compat.h | 6 + include/linux/syscalls.h | 5 + include/uapi/asm-generic/unistd.h | 4 +- kernel/sys_ni.c | 2 + .../filesystems/epoll/epoll_wakeup_test.c | 72 ++++++++++ 24 files changed, 210 insertions(+), 29 deletions(-) -- 2.29.2.454.gaff20da3a2-goog
