Re: [Y2038] [PATCH v4 02/10] include: Move compat_timespec/ timeval to compat_time.h

Hi Deepa, Thank you for the patch! Yet something to improve: [auto build test ERROR on ] url: https://github.com/0day-ci/linux/commits/Deepa-Dinamani/posix_clocks-Prepare-syscalls-for-64-bit-time_t-conversion/20180313-203305 base: config: powerpc-iss476-smp_defconfig (attached

Re: [Y2038] [PATCH v4 02/10] include: Move compat_timespec/ timeval to compat_time.h

Hi Deepa, Thank you for the patch! Yet something to improve: [auto build test ERROR on ] url: https://github.com/0day-ci/linux/commits/Deepa-Dinamani/posix_clocks-Prepare-syscalls-for-64-bit-time_t-conversion/20180313-203305 base: config: arm64-allnoconfig (attached as .config) compiler

Re: [Y2038] [PATCH v4 02/10] include: Move compat_timespec/ timeval to compat_time.h

the patch! Yet something to improve: > > [auto build test ERROR on ] > > url: > https://github.com/0day-ci/linux/commits/Deepa-Dinamani/posix_clocks-Prepare-syscalls-for-64-bit-time_t-conversion/20180313-203305 > base: > config: arm64-allnoconfig (attached as .config) >

[Y2038] [PATCH v5 05/10] arch: Introduce CONFIG_COMPAT_32BIT_TIME

Compat functions are now used to support 32 bit time_t in compat mode on 64 bit architectures and in native mode on 32 bit architectures. Introduce COMPAT_32BIT_TIME to conditionally compile these functions. Note that turning off 32 bit time_t support requires more changes on architecture side.

[Y2038] [PATCH v5 02/10] include: Move compat_timespec/ timeval to compat_time.h

All the current architecture specific defines for these are the same. Refactor these common defines to a common header file. The new common linux/compat_time.h is also useful as it will eventually be used to hold all the defines that are needed for compat time types that support non y2038 safe

[Y2038] [PATCH v5 06/10] posix-clocks: Make compat syscalls depend on CONFIG_COMPAT_32BIT_TIME

clock_gettime, clock_settime, clock_getres and clock_nanosleep compat syscalls are also repurposed to provide backward compatibility to support 32 bit time_t on 32 bit systems. Note that nanosleep compat syscall will also be treated the same way as the above syscalls as it shares common handler

[Y2038] [PATCH v5 07/10] include: Add new y2038 safe __kernel_timespec

The new struct __kernel_timespec is similar to current internal kernel struct timespec64 on 64 bit architecture. The compat structure however is similar to below on little endian systems (padding and tv_nsec are switched for big endian systems): typedef s32compat_long_t; typedef s64

[Y2038] [PATCH v5 04/10] arch: introduce CONFIG_64BIT_TIME

There are a total of 53 system calls (aside from ioctl) that pass a time_t or derived data structure as an argument, and in order to extend time_t to 64-bit, we have to replace them with new system calls and keep providing backwards compatibility. To avoid adding completely new and untested code

[Y2038] [PATCH v5 08/10] fix get_timespec64() for y2038 safe compat interfaces

get/put_timespec64() interfaces will eventually be used for conversions between the new y2038 safe struct __kernel_timespec and struct timespec64. The new y2038 safe syscalls have a common entry for native and compat interfaces. On compat interfaces, the high order bits of nanoseconds should be

[Y2038] [PATCH v5 09/10] change time types to new y2038 safe __kernel_* types

Change over clock_settime, clock_gettime and clock_getres syscalls to use __kernel_timespec times. This will enable changing over of these syscalls to use new y2038 safe syscalls when the architectures define the CONFIG_64BIT_TIME. Cc: linux-...@vger.kernel.org Signed-off-by: Deepa Dinamani

[Y2038] [PATCH v5 10/10] nanosleep: change time types to safe __kernel_* types

Change over clock_nanosleep syscalls to use y2038 safe __kernel_timespec times. This will enable changing over of these syscalls to use new y2038 safe syscalls when the architectures define the CONFIG_64BIT_TIME. Note that nanosleep syscall is deprecated and does not have a plan for making it

Re: [Y2038] [PATCH v4 02/10] include: Move compat_timespec/ timeval to compat_time.h

the patch! Yet something to improve: > > [auto build test ERROR on ] > > url: > https://github.com/0day-ci/linux/commits/Deepa-Dinamani/posix_clocks-Prepare-syscalls-for-64-bit-time_t-conversion/20180313-203305 > base: > config: powerpc-iss476-smp_defconfig (attached as .confi

[Y2038] [PATCH v5 00/10] posix_clocks: Prepare syscalls for 64 bit time_t conversion

The series is a preparation series for individual architectures to use 64 bit time_t syscalls in compat and 32 bit emulation modes. This is a follow up to the series Arnd Bergmann posted: https://sourceware.org/ml/libc-alpha/2015-05/msg00070.html [1] Thomas, Arnd, this seems ready to be merged

[Y2038] [PATCH v5 03/10] compat: enable compat_get/put_timespec64 always

These functions are used in the repurposed compat syscalls to provide backward compatibility for using 32 bit time_t on 32 bit systems. Signed-off-by: Deepa Dinamani --- include/linux/compat.h | 2 -- include/linux/compat_time.h | 4 kernel/compat.c