* Re: [KJ] How does macro time_after(unknown,
@ 2007-01-10 14:00 Matthew Wilcox
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From: Matthew Wilcox @ 2007-01-10 14:00 UTC (permalink / raw)
To: kernel-janitors
On Wed, Jan 10, 2007 at 09:40:19PM +0800, Lei W wrote:
> BUT why the macro
> #define time_after(unknown,known) ((long)(unknown) -
> (long)(known)<0))
> will not?
Just think about it a bit. What happens near extreme points?
time_after(a, b)
If a is 100 greater than b, how does it behave when b is slightly below
0? Slightly above 0? Near INT_MAX? Near 2^32?
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2007-01-10 14:00 [KJ] How does macro time_after(unknown, Matthew Wilcox
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