Date: Wed, 23 Aug 2006 00:35:16 -0700 (PDT)
Message-Id: <20060823.003516.30182824.davem@davemloft.net>
To: akpm@osdl.org
Cc: johnpol@2ka.mipt.ru, sundell.software@gmail.com, kuznet@ms2.inr.ac.ru,
       nmiell@comcast.net, linux-kernel@vger.kernel.org, drepper@redhat.com,
       netdev@vger.kernel.org, zach.brown@oracle.com, hch@infradead.org
Subject: Re: [take12 0/3] kevent: Generic event handling mechanism.
From: David Miller <davem@davemloft.net>
In-Reply-To: <20060823000758.5ebed7dd.akpm@osdl.org>
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	<20060823065659.GC24787@2ka.mipt.ru>
	<20060823000758.5ebed7dd.akpm@osdl.org>
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From: Andrew Morton <akpm@osdl.org>
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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