On Fri, 2005-03-11 at 17:25 -0800, john stultz wrote: > All, > This patch implements the minimal architecture specific hooks to enable > the new time of day subsystem code for i386, x86-64, ia64, ppc32 and > ppc64. It applies on top of my linux-2.6.11_timeofday-core_A3 patch and > with this patch applied, you can test the new time of day subsystem. > > Basically it configs in the NEWTOD code and cuts alot of code out of the > build via #ifdefs. I know, I know, #ifdefs' are ugly and bad, and the > final patch will just remove the old code. For now this allows us to be > flexible and easily switch between the two implementations with a single > define. > > New in this version: > o ppc32 arch code (by Darrick Wong. Many thanks to him for this code!) > o ia64 arch code (by Max Asbock. Many thanks to him for this code!) > o minor cleanups moving code between the arch and timesource patches > > Items still on the TODO list: > o s390 arch port (hey Martin: nudge, nudge :) > o arch specific vsyscall/fsyscall interface > o other arch ports (volunteers wanted!)
I'm not what the impact will be with the vDSO implementation of gettimeofday which relies on the bits in systemcfg (tb_to_xs etc...). Currently, the userland code uses the exact same bits as the kernel code, and thus, we have a garantee of getting the same results from both. Also, our "special" ppc_adjtimex will also update our offset and scale factor (with appropriate barriers) in a way that applies to both the kernel/syscall gettimeofday and the vDSO implementation. I'm not sure this is still true with your patch. I suppose I'll have to dig into the details sometime next week.. Ben - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
