Re: [patch] slub: allow stats to be cleared

[David Rientjes]

On Sat, 17 Oct 2009, Pekka Enberg wrote:

> > On a semi-related topic, it would have been nice to isolate all statistic
> > files to its own directory: /sys/kernel/slab/kmalloc-256/stats/..., for
> > example.  It would have made collecting (and now clearing) all statistics
> > much easier since userspace wouldn't need a predefined list of stat file
> > names to scan.  I wonder if Pekka would allow them to be moved...
> 
> It's a non-production configuration option and the only known user of the ABI
> is in slabinfo.c so maybe we can just go ahead and do that. Alternatively, I
> think we can preserve the current ABI with symbolic links in sysfs?
> 

I think it would be best to just move them to 
/sys/kernel/slab/cache/stats.  I'll propose a patch and we can see how it 
looks.

I remember trying to change `cpuslab_flush' to `cpu_slab_flush' before and 
you nack'd it, so I wasn't sure you'd accept this ABI change :)
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