On Mon, 9 Apr 2007, Andrew Morton wrote:
> On Mon, 9 Apr 2007 11:25:20 -0700 (PDT)
> Christoph Lameter <[email protected]> wrote:
>
> > -static inline pgd_t *pgd_alloc(struct mm_struct *mm)
> > +static inline void pgd_ctor(void *x)
> > +static inline void pgd_dtor(void *x)
>
> Seems dumb to inline these - they're only ever called indirectly, aren't
> they?
Yes.. In most cases they are not called at all because NULL is passed.
Then the function call can be removed by the compiler from the in line
functions.
> This means (I think) that the compiler will need to generate an out-of-line
> copy of these within each compilation unit which passes the address of these
> functions into some other function.
The function is constant. Constant propagation will lead to the function
being included in the inline function.
-
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