Messages in this thread | | | Date | Mon, 2 Jun 2014 10:16:03 -0500 (CDT) | From | Christoph Lameter <> | Subject | Re: [PATCH -mm 5/8] slab: remove kmem_cache_shrink retval |
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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.
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