On Fri, 17 Jun 2016 17:10:32 +0200, Arnd Bergmann wrote:
The sequencer client manager reports timestamps in units of unsigned 32-bit seconds/nanoseconds, but that does not suffer from the y2038 overflow because it stores only the delta since the 'last_update' time was recorded.
However, the use of the do_gettimeofday() function is problematic and we have to replace it to avoid the overflow on on 32-bit architectures.
This uses 'struct timespec64' to record 'last_update', and changes the code to use monotonic timestamps that do not suffer from leap seconds and settimeofday updates.
As a side-effect, the code can now use the timespec64_sub() helper and become more readable and also avoid a multiplication to convert from microseconds to nanoseconds.
Signed-off-by: Arnd Bergmann arnd@arndb.de
Thanks, applied. It's even a nice cleanup!
Takashi