[PATCH v3 00/22] Convert the posix_clock_operations and k_clock structure to ready for 2038
This patch series changes the 32-bit time type (timespec/itimerspec) to the 64-bit one (timespec64/itimerspec64), since 32-bit time types will break in the year 2038.
This patch series introduces new methods with timespec64/itimerspec64 type, and removes the old ones with timespec/itimerspec type for posix_clock_operations and k_clock structure.
Also introduces some new functions with timespec64/itimerspec64 type, like current_kernel_time64(), hrtimer_get_res64(), cputime_to_timespec64() and timespec64_to_cputime().
Changes since v2: -Split the syscall conversion patch into small some patches.
Baolin Wang (22): linux/time64.h:Introduce the 'struct itimerspec64' for 64bit timekeeping:Introduce the current_kernel_time64() function with timespec64 type time/hrtimer:Introduce hrtimer_get_res64() with timespec64 type for getting the timer resolution posix-timers:Split out the guts of the syscall and change the implementation for timer_gettime posix-timers:Convert to the 64bit methods for the timer_gettime syscall function posix-timers:Split out the guts of the syscall and change the implementation for timer_settime posix-timers:Convert to the 64bit methods for the timer_settime syscall function posix-timers:Split out the guts of the syscall and change the implementation for clock_settime posix-timers:Convert to the 64bit methods for the clock_settime syscall function posix-timers:Split out the guts of the syscall and change the implementation for clock_gettime posix-timers:Convert to the 64bit methods for the clock_gettime syscall function posix-timers:Split out the guts of the syscall and change the implementation for clock_getres posix-timers:Convert to the 64bit methods for the clock_getres syscall function time:Introduce the do_sys_settimeofday64() function with timespec64 type time/posix-timers:Convert to the 64bit methods for k_clock callback functions char/mmtimer:Convert to the 64bit methods for k_clock callback function time/alarmtimer:Convert to the new 64bit methods for k_clock structure time/posix-clock:Convert to the 64bit methods for k_clock and posix_clock_operations structure time/time:Introduce the timespec64_to_jiffies/jiffies_to_timespec64 function cputime:Introduce the cputime_to_timespec64/timespec64_to_cputime function time/posix-cpu-timers:Convert to the 64bit methods for k_clock structure k_clock:Remove the 32bit methods with timespec/itimerspec type
arch/powerpc/include/asm/cputime.h | 6 +- arch/s390/include/asm/cputime.h | 8 +- drivers/char/mmtimer.c | 36 +++-- drivers/ptp/ptp_clock.c | 26 +--- include/asm-generic/cputime_jiffies.h | 10 +- include/asm-generic/cputime_nsecs.h | 4 +- include/linux/cputime.h | 15 ++ include/linux/hrtimer.h | 12 +- include/linux/jiffies.h | 21 ++- include/linux/posix-clock.h | 10 +- include/linux/posix-timers.h | 18 +-- include/linux/time64.h | 35 +++++ include/linux/timekeeping.h | 26 +++- kernel/time/alarmtimer.c | 43 +++--- kernel/time/hrtimer.c | 10 +- kernel/time/posix-clock.c | 20 +-- kernel/time/posix-cpu-timers.c | 83 +++++----- kernel/time/posix-timers.c | 269 ++++++++++++++++++++++----------- kernel/time/time.c | 22 +-- kernel/time/timekeeping.c | 6 +- kernel/time/timekeeping.h | 2 +- 21 files changed, 428 insertions(+), 254 deletions(-)
On Monday 11 May 2015 19:08:38 Baolin Wang wrote:
This patch series changes the 32-bit time type (timespec/itimerspec) to the 64-bit one (timespec64/itimerspec64), since 32-bit time types will break in the year 2038.
This patch series introduces new methods with timespec64/itimerspec64 type, and removes the old ones with timespec/itimerspec type for posix_clock_operations and k_clock structure.
Also introduces some new functions with timespec64/itimerspec64 type, like current_kernel_time64(), hrtimer_get_res64(), cputime_to_timespec64() and timespec64_to_cputime().
Changes since v2: -Split the syscall conversion patch into small some patches.
Baolin Wang (22): linux/time64.h:Introduce the 'struct itimerspec64' for 64bit timekeeping:Introduce the current_kernel_time64() function with timespec64 type time/hrtimer:Introduce hrtimer_get_res64() with timespec64 type for getting the timer resolution posix-timers:Split out the guts of the syscall and change the implementation for timer_gettime posix-timers:Convert to the 64bit methods for the timer_gettime syscall function
I have two more very general comments about the series:
a) something has gone wrong with your submission in v2 and v3 but was working earlier: normally all emails should be sent by git-send-email as replies to the [patch 00/22] mail. This is the default, and it is enabled by the '--thread --no-chain-reply' options. Please try to get this to work again.
b) it would be better to have a little shorter subject lines, to avoid line-wrapping in the list above. Here are some examples what you could use to replace the lines above:
timekeeping: introduce struct itimerspec64 timekeeping: introduce current_kernel_time64() hrtimer: introduce hrtimer_get_res64() posix-timers: split up sys_timer_gettime() posix-timers: convert timer_gettime() to timespec64
In general, try to come up with the shortest description that uniquely describes what your patch does, and move any details into the longer patch description.
Arnd
On 12 May 2015 at 17:39, Arnd Bergmann arnd@arndb.de wrote:
On Monday 11 May 2015 19:08:38 Baolin Wang wrote:
This patch series changes the 32-bit time type (timespec/itimerspec) to
the 64-bit one
(timespec64/itimerspec64), since 32-bit time types will break in the
year 2038.
This patch series introduces new methods with timespec64/itimerspec64
type,
and removes the old ones with timespec/itimerspec type for
posix_clock_operations
and k_clock structure.
Also introduces some new functions with timespec64/itimerspec64 type,
like current_kernel_time64(),
hrtimer_get_res64(), cputime_to_timespec64() and timespec64_to_cputime().
Changes since v2: -Split the syscall conversion patch into small some patches.
Baolin Wang (22): linux/time64.h:Introduce the 'struct itimerspec64' for 64bit timekeeping:Introduce the current_kernel_time64() function with timespec64 type time/hrtimer:Introduce hrtimer_get_res64() with timespec64 type for getting the timer resolution posix-timers:Split out the guts of the syscall and change the implementation for timer_gettime posix-timers:Convert to the 64bit methods for the timer_gettime syscall function
I have two more very general comments about the series:
a) something has gone wrong with your submission in v2 and v3 but was working earlier: normally all emails should be sent by git-send-email as replies to the [patch 00/22] mail. This is the default, and it is enabled by the '--thread --no-chain-reply' options. Please try to get this to work again.
b) it would be better to have a little shorter subject lines, to avoid line-wrapping in the list above. Here are some examples what you could use to replace the lines above:
timekeeping: introduce struct itimerspec64 timekeeping: introduce current_kernel_time64() hrtimer: introduce hrtimer_get_res64() posix-timers: split up sys_timer_gettime() posix-timers: convert timer_gettime() to timespec64
In general, try to come up with the shortest description that uniquely describes what your patch does, and move any details into the longer patch description.
Arnd
OK, i'll fix these in next patch series.Thanks for your comments.
-
Arnd Bergmann -
Baolin Wang