Re: [PATCH] slab: kfree(null) is unlikely

[Andrew Morton]

Jeff Garzik <jgarzik@xxxxxxxxx> wrote:
>
> Linux Kernel Mailing List wrote:
> > ChangeSet 1.2231.1.8, 2005/03/28 19:18:25-08:00, akpm@xxxxxxxx
> > 
> > 	[PATCH] slab: kfree(null) is unlikely
> > 	
> > 	- mark kfree(NULL) as being unlikely
> 
> This is just a wild guess, right?

More like a judgement based on experience?

> Seems to me, it depends on the code.
> 

If someone is doing kfree(0) with sufficient frequency for this patch to
matter, then they need to stop doing that, rather than pessimising kfree(not 0).
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