This is a minor update of the patches I posted last week, I would like to add this into linux-next now, but would still do changes if there are concerns about the contents. The first version did not see a lot of replies, which could mean that either everyone is happy with it, or that it was largely ignored. See also the article at https://lwn.net/Articles/776435/. Changes since v1: - posting as a combined series for simplicity - dropped one mips patch that was merged as a 5.0 fix - reworked s390 compat syscall handling (posted separately) and rebased on top of that series - minor fixes for arm64 and powerpc - added alpha statfs64 interfaces - added alpha get{eg,eu,g,p,u,pp}id() Arnd ---- v1 description for cleanup: The system call tables have diverged a bit over the years, and a number of the recent additions never made it into all architectures, for one reason or another. This is an attempt to clean it up as far as we can without breaking compatibility, doing a number of steps: - Add system calls that have not yet been integrated into all architectures but that we definitely want there. - Add the separate ipc syscalls on all architectures that traditionally only had sys_ipc(). This version is done without support for IPC_OLD that is we have in sys_ipc. The new semtimedop_time64 syscall will only be added here, not in sys_ipc - Add syscall numbers for a couple of syscalls that we probably don't need everywhere, in particular pkey_* and rseq, for the purpose of symmetry: if it's in asm-generic/unistd.h, it makes sense to have it everywhere. - Prepare for having the same system call numbers for any future calls. In combination with the generated tables, this hopefully makes it easier to add new calls across all architectures together. Most of the contents of this series are unrelated to the actual y2038 work, but for the moment, that second series is based on this one. If there are any concerns about changes here, I can drop or rewrite any individual patch in this series. My plan is to merge any patches in this series that are found to be good together with the y2038 patches for linux-5.1, so please review and provide Acks for merging through my tree, or pick them up for 5.0 if they seem urgent enough. v1 description for y2038 patches: This series finally gets us to the point of having system calls with 64-bit time_t on all architectures, after a long time of incremental preparation patches. There was actually one conversion that I missed during the summer, i.e. Deepa's timex series, which I now updated based the 5.0-rc1 changes and review comments. I hope that the actual conversion should be uncontroversial by now, even if some of the patches are rather large. The one area that may need a little discussion is for the system call numbers assigned in the final patch: Can we get consensus on whether the idea of using the same numbers on all architectures, as well as my choice of numbers makes sense here? So far, I have done a lot of build testing across most architectures, which has found a number of bugs. I have also done an LTP run on arm32 with existing user space, but not on the other architectures. I did LTP tests with a modified musl libc[2] last summer on an older version of this series to make sure that the new 64-bit time_t interfaces work. The version there will need updates for testing with this new kernel patch series; I plan to do that next. For testing, the series plus the preparatory patches is available at [3]. Once there is a general agreement on this series and I have done more tests for the new system calls, I plan to add this to linux-next through my asm-generic tree or Thomas' timers tree. Please review and test! Arnd [1] https://lore.kernel.org/lkml/20190110162435.309262-1-arnd@xxxxxxxx/T/ [2] https://git.linaro.org/people/arnd/musl-y2038.git/ [3] https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git y2038-5.0-rc1 Arnd Bergmann (26): ia64: add __NR_umount2 definition ia64: add statx and io_pgetevents syscalls ia64: assign syscall numbers for perf and seccomp alpha: wire up io_pgetevents system call alpha: update syscall macro definitions ARM: add migrate_pages() system call ARM: add kexec_file_load system call number m68k: assign syscall number for seccomp sh: remove duplicate unistd_32.h file sh: add statx system call sparc64: fix sparc_ipc type conversion ipc: rename old-style shmctl/semctl/msgctl syscalls arch: add split IPC system calls where needed arch: add pkey and rseq syscall numbers everywhere alpha: add standard statfs64/fstatfs64 syscalls alpha: add generic get{eg,eu,g,p,u,pp}id() syscalls syscalls: remove obsolete __IGNORE_ macros time: make adjtime compat handling available for 32 bit time: fix sys_timer_settime prototype sparc64: add custom adjtimex/clock_adjtime functions x86/x32: use time64 versions of sigtimedwait and recvmmsg y2038: syscalls: rename y2038 compat syscalls y2038: use time32 syscall names on 32-bit y2038: remove struct definition redirects y2038: rename old time and utime syscalls y2038: add 64-bit time_t syscalls to all 32-bit architectures Deepa Dinamani (3): time: Add struct __kernel_timex timex: use __kernel_timex internally timex: change syscalls to use struct __kernel_timex arch/Kconfig | 2 +- arch/alpha/include/asm/unistd.h | 21 - arch/alpha/include/uapi/asm/unistd.h | 10 + arch/alpha/kernel/osf_sys.c | 5 +- arch/alpha/kernel/syscalls/syscall.tbl | 22 +- arch/arm/include/asm/unistd.h | 5 +- arch/arm/kernel/sys_oabi-compat.c | 8 +- arch/arm/tools/syscall.tbl | 85 +++-- arch/arm64/include/asm/unistd.h | 2 +- arch/arm64/include/asm/unistd32.h | 99 +++-- arch/ia64/include/asm/unistd.h | 14 - arch/ia64/include/uapi/asm/unistd.h | 2 + arch/ia64/kernel/syscalls/syscall.tbl | 11 +- arch/m68k/include/asm/unistd.h | 4 +- arch/m68k/kernel/syscalls/syscall.tbl | 88 +++-- arch/microblaze/include/asm/unistd.h | 4 +- arch/microblaze/kernel/syscalls/syscall.tbl | 83 ++-- arch/mips/include/asm/unistd.h | 20 +- arch/mips/kernel/syscalls/syscall_n32.tbl | 77 ++-- arch/mips/kernel/syscalls/syscall_n64.tbl | 7 +- arch/mips/kernel/syscalls/syscall_o32.tbl | 85 +++-- arch/parisc/include/asm/unistd.h | 15 +- arch/parisc/kernel/syscalls/syscall.tbl | 109 ++++-- arch/powerpc/include/asm/unistd.h | 8 +- arch/powerpc/kernel/syscalls/syscall.tbl | 134 +++++-- arch/s390/include/asm/unistd.h | 7 +- arch/s390/kernel/syscalls/syscall.tbl | 87 +++-- arch/sh/include/asm/unistd.h | 4 +- arch/sh/include/uapi/asm/unistd_32.h | 403 -------------------- arch/sh/kernel/syscalls/syscall.tbl | 88 +++-- arch/sparc/include/asm/unistd.h | 13 +- arch/sparc/kernel/sys_sparc_64.c | 61 ++- arch/sparc/kernel/syscalls/syscall.tbl | 116 ++++-- arch/x86/entry/syscalls/syscall_32.tbl | 85 +++-- arch/x86/entry/syscalls/syscall_64.tbl | 4 +- arch/x86/include/asm/unistd.h | 8 +- arch/xtensa/include/asm/unistd.h | 14 +- arch/xtensa/kernel/syscalls/syscall.tbl | 78 ++-- drivers/ptp/ptp_clock.c | 2 +- fs/aio.c | 10 +- fs/select.c | 4 +- fs/timerfd.c | 4 +- fs/utimes.c | 10 +- include/linux/compat.h | 104 +---- include/linux/posix-clock.h | 2 +- include/linux/syscalls.h | 68 +++- include/linux/time32.h | 32 +- include/linux/time64.h | 8 - include/linux/timex.h | 4 +- include/uapi/asm-generic/unistd.h | 103 +++-- include/uapi/linux/time.h | 4 - include/uapi/linux/timex.h | 39 ++ ipc/mqueue.c | 16 +- ipc/msg.c | 39 +- ipc/sem.c | 41 +- ipc/shm.c | 40 +- ipc/syscall.c | 12 +- ipc/util.h | 21 +- kernel/compat.c | 64 ---- kernel/futex.c | 2 +- kernel/sched/core.c | 5 +- kernel/signal.c | 2 +- kernel/sys_ni.c | 21 +- kernel/time/hrtimer.c | 2 +- kernel/time/ntp.c | 18 +- kernel/time/ntp_internal.h | 2 +- kernel/time/posix-clock.c | 2 +- kernel/time/posix-stubs.c | 25 +- kernel/time/posix-timers.c | 72 ++-- kernel/time/posix-timers.h | 2 +- kernel/time/time.c | 92 ++++- kernel/time/timekeeping.c | 4 +- net/compat.c | 2 +- scripts/checksyscalls.sh | 40 ++ 74 files changed, 1544 insertions(+), 1262 deletions(-) delete mode 100644 arch/sh/include/uapi/asm/unistd_32.h -- 2.20.0 Cc: mattst88@xxxxxxxxx Cc: linux@xxxxxxxxxxxxxxx Cc: catalin.marinas@xxxxxxx Cc: will.deacon@xxxxxxx Cc: tony.luck@xxxxxxxxx Cc: fenghua.yu@xxxxxxxxx Cc: geert@xxxxxxxxxxxxxx Cc: monstr@xxxxxxxxx Cc: paul.burton@xxxxxxxx Cc: deller@xxxxxx Cc: benh@xxxxxxxxxxxxxxxxxxx Cc: mpe@xxxxxxxxxxxxxx Cc: schwidefsky@xxxxxxxxxx Cc: heiko.carstens@xxxxxxxxxx Cc: dalias@xxxxxxxx Cc: davem@xxxxxxxxxxxxx Cc: luto@xxxxxxxxxx Cc: tglx@xxxxxxxxxxxxx Cc: mingo@xxxxxxxxxx Cc: hpa@xxxxxxxxx Cc: x86@xxxxxxxxxx Cc: jcmvbkbc@xxxxxxxxx Cc: arnd@xxxxxxxx Cc: akpm@xxxxxxxxxxxxxxxxxxxx Cc: deepa.kernel@xxxxxxxxx Cc: ebiederm@xxxxxxxxxxxx Cc: firoz.khan@xxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Cc: linux-alpha@xxxxxxxxxxxxxxx Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Cc: linux-ia64@xxxxxxxxxxxxxxx Cc: linux-m68k@xxxxxxxxxxxxxxxxxxxx Cc: linux-mips@xxxxxxxxxxxxxxx Cc: linux-parisc@xxxxxxxxxxxxxxx Cc: linuxppc-dev@xxxxxxxxxxxxxxxx Cc: linux-s390@xxxxxxxxxxxxxxx Cc: linux-sh@xxxxxxxxxxxxxxx Cc: sparclinux@xxxxxxxxxxxxxxx Cc: netdev@xxxxxxxxxxxxxxx Cc: linux-fsdevel@xxxxxxxxxxxxxxx Cc: linux-api@xxxxxxxxxxxxxxx Cc: linux-arch@xxxxxxxxxxxxxxx
