From: Andi Kleen <firstname.lastname@example.org>
Date: Fri, 18 Jan 2002 21:14:08 +0100
On Fri, Jan 18, 2002 at 12:09:05PM -0800, David S. Miller wrote:
> Andi, i386 SMP? :-)
If you used do_gettimeofday unconditionally then everybody would eat the readlock, not
only i386 (unless you change it to be lockless first like andrea did for the
x86-64 vsyscall version)
If you didn't propose to use it unconditionally then I
misunderstood you and I apologize.
Andi, the x86 platforms that have SMP have TSC and in that
case do_get_fast_time == do_gettimeofday and there is no read locking
This is the whole point of this, get_fast_time is total garbage.
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