| Date | Wed, 15 Jul 2015 15:20:53 -0500 (CDT) | From | Christoph Lameter <> | Subject | Re: [PATCH 04/16] page-flags: define PG_locked behavior on compound pages |
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On Thu, 19 Mar 2015, Kirill A. Shutemov wrote:
> SLUB uses PG_locked as a bit spin locked. IIUC, tail pages should never > appear there. VM_BUG_ON() is added to make sure that this assumption is > correct.
Its really not worth checking that AFAICT. Tail page pointers are not used.
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