Re: [PATCH 1/2] BDI: Provide backing device capability information

[David Howells]

Andrew Morton <akpm@xxxxxxxx> wrote:

> > Making it unsigned long on a 32-bit machine will make no
> > difference. Making it unsigned int on a 64-bit machine will waste four
> > bytes.
> 
> No, it won't waste any bytes at all.  It won't save any either.
> 
> But if someone comes along later and wants to add another int to that
> structure, they won't know that your field was needlessly made a long, and
> they'll then waste another eight bytes.

Okay... Fair enough.

David
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