Re: [PATCH -mm 5/8] slab: remove kmem_cache_shrink retval

[Christoph Lameter]

On Sat, 31 May 2014, Vladimir Davydov wrote:

> > Well slub returns an error code if it fails
>
> ... to sort slabs by the nubmer of objects in use, which is not even
> implied by the function declaration. Why can *shrinking*, which is what
> kmem_cache_shrink must do at first place, ever fail?

Because there is a memory allocation failure. Or there may be other
processes going on that prevent shrinking. F.e. We may want to merge a
patchset that does defragmentation of slabs at some point.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/