On Sun, Jun 18, 2017 at 11:45:07PM -0700, Deepa Dinamani wrote: > The series aims at isolating data conversions of time_t based structures: > struct timespec and struct itimerspec at user space boundaries. > This helps to later change the underlying types to handle y2038 changes > to these. > > The series is an update to Arnd Bergmann's previous series: > http://sourceware.org/ml/libc-alpha/2015-05/msg00070.html > > The series particularly aims at changing kernel clock and timer interfaces. > > The changes include > a. Add data conversion apis for native and compat modes. > b. Refactor nanosleep and clock_nanosleep logic: > 1. Move nanosleep and its compat version to a new file nanosleep.c. > Alternatively, these can be moved into hrtimer.c. > 2. Refactor common functions for nanosleep: same functions > are used for posix timers and posix stubs. > 3. Change the posix clock callbacks to take advantage of these > common functions. > b. Move compat syscalls to the same files as the regular syscalls. > c. Use data conversion apis in the regular and compat syscall paths. > d. Remove set_fs()/get_fs() calls in the compat syscall path and > use the same logic as in the regular syscall path. Check the stuff already in tip/timers/core; at the very least it overlaps considerably with your series. And your variant is a lot more convoluted - there's no need to have a separate compat restart, etc.