Re: [RFC][PATCH] printk: Add %pb to print bitmaps

[Peter Zijlstra]

On Wed, 2012-05-09 at 19:26 +0200, Ingo Molnar wrote:
> * Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> 
> > > A "%.*pb" is the only interface that can work for a "sized" 
> > > bitmap (with obviously fixed-length ones being possible with 
> > > a "%.32bp" like thing)
> > 
> > Right, sadly that also generates a warning :/
> 
> Why not use what I suggested, %*pb? It also doubles as a width 
> field in essence, as bitmap output is fundamentally fixed width.

The bitmap list output uses RLE and generates things like:

 6-11,18-23

Its the stuff used for all the sched_domain output etc..



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