From: Andrew Morton <[email protected]>
Date: Wed, 23 Aug 2006 00:07:58 -0700
> I wonder whether designing-in a millisecond granularity is the right thing
> to do. If in a few years the kernel is running tickless with high-res clock
> interrupt sources, that might look a bit lumpy.
>
> Switching it to a __u64 nanosecond counter would be basically free on
> 64-bit machines, and not very expensive on 32-bit, no?
If it ends up in a structure we'll need to use the "aligned_u64" type
in order to avoid problems with 32-bit x86 binaries running on 64-bit
kernels.
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