Re: [PATCH] slab+slob: dup name string

[Glauber Costa]

On 05/23/2012 03:46 PM, James Bottomley wrote:
> > We can't predict how slab will be extended in the future and this affects
> > >  anything created before g_cpucache_cpu<= EARLY.  This would introduce the
> > >  first problem with destroying such caches and is unnecessary if a
> > >  workaround exists.
> These problems seem to indicate that the slab behaviour: expecting the
> string to exist for the lifetime of the cache so there's no need to copy
> it might be better.
>
> This must be the behaviour all users of kmem_cache_create() expect
> anyway, since all enterprise distributions use slab and they're not
> getting bugs reported in this area.
>
> So, why not simply patch slab to rely on the string lifetime being the
> cache lifetime (or beyond) and therefore not having it take a copy?
You mean patch slub? slub is the one that takes a copy currently.

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