Re: [PATCH] ext3_clear_inode(): avoid kfree(NULL)

[Pekka Enberg]

On 6/24/06, Arjan van de Ven <arjan@xxxxxxxxxxxxx> wrote:
> >
> > Because at that callsite, NULL is the common case.  We avoid a do-nothing
> > function call most of the time.  It's a nano-optimisation.
>
> but a function call is basically free, while an if () is not... even
> with unlikely()...

Yeah, but the called function has an if statement too...

                                  Pekka
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