Re: [PATCH] blk-iocost: don't make all constants unsigned long long

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On Wed, Jan 04, 2023 at 12:15:06PM -1000, Tejun Heo wrote:
> On Thu, Dec 22, 2022 at 02:58:55PM +0100, Michal Koutný wrote:
> > On Tue, Dec 20, 2022 at 09:18:19PM +0100, Yann Droneaud <ydroneaud@xxxxxxxxxx> wrote:
> > > +enum {
> > >  	/* switch iff the conditions are met for longer than this */
> > >  	AUTOP_CYCLE_NSEC	= 10LLU * NSEC_PER_SEC,
> > > +};
> > 
> > This looks gratuitous.
> > 
> > What about indivudial #defines with typed literals instead of the "lazy
> > splitting"?
> 
> enums are so much better for debugging and tracing. This is a gcc caused
> problem where there's no other way to generate the same code between two gcc
> versions without splitting the enum definitions. I'm kinda baffled that this
> is what they chose to do but can't think of a better way to work around it.

I thought this was the other patch addressing this issue. The proposed patch
is rather painful to look at. The other one splits it into two groups.

Thanks.

-- 
tejun



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