On Fri, 2008-11-21 at 20:51 +1100, Paul Mackerras wrote: > Joakim Tjernlund writes: > > > > + force_successful_syscall_return(); > > > return (long) jiffies_64_to_clock_t(get_jiffies_64()); > > > > Why is 64 bits ops used here when you only use 32 bits? > > If HZ is 1000, jiffies_64_to_clock_t is going to divide jiffies by 10, > so we need to start with 64 bits in order to get the top few bits > of a 32-bit result correct.
I see, thanks. > > > BTW, I think time(2) needs this: > > In principle you are correct, but it's only going to matter for a > little over an hour some time in the year 2106. :) I know, but I figured it should be fixed to serve as an template for other similar sys calls(not that I know of any offhand). Perhaps add it commented? Jocke _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
