Messages in this thread | | | Date | Thu, 5 Jul 2012 09:47:14 -0500 (CDT) | From | Christoph Lameter <> | Subject | Re: [RFC PATCH 2/4] mm: make consistent use of PG_slab flag |
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On Tue, 3 Jul 2012, Jiang Liu wrote:
> PG_slabobject: mark whether a (compound) page hosts SLUB/SLOB objects.
Any subsystem may allocate a compound page to store metadata.
The compound pages used by SLOB and SLUB are not managed in any way but the calls to kfree and kmalloc are converted to calls to the page allocator. There is no "management" by the slab allocators for these cases and its inaccurate to say that these are SLUB/SLOB objects since the allocators never deal with these objects.
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