Re: [PATCH -mm 2/3] slab: zap kmem_cache_shrink return value

[Christoph Lameter]

On Mon, 26 Jan 2015, Vladimir Davydov wrote:

> __cache_shrink() is used not only in __kmem_cache_shrink(), but also in
> SLAB's __kmem_cache_shutdown(), where we do need its return value to
> check if the cache is empty.

It could be useful to know if a slab is empty. So maybe leave
kmem_cache_shrink the way it is and instead fix up slub to return the
proper value?

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