Re: [PATCH] cpumask 5/10 rewrite cpumask.h - single bitmap basedimplementation

[Andrew Morton]

Andrew Morton <akpm@xxxxxxxx> wrote:
>
> > +typedef struct { DECLARE_BITMAP(bits, NR_CPUS); } cpumask_t;
> >
> 
> We avoided doing this because in some situations the compiler will not pass
> such a cpumask_t in a register, ever.  An efficiency problem on sparc64,
> apparently.

Although for some reason your patches shrink my sparc64 build from

	   text    data     bss     dec     hex filename
	3508730  895000  302656 4706386  47d052 vmlinux
to	3507586  895080  302656 4705322  47cc2a vmlinux

so we can probably evade the wrath-of-davem.

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