Messages in this thread | | | Date | Mon, 27 Aug 2018 09:53:41 +0200 | From | Peter Zijlstra <> | Subject | Re: [RFC PATCH 09/11] asm-generic/tlb: Track which levels of the page tables have been cleared |
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On Fri, Aug 24, 2018 at 04:52:44PM +0100, Will Deacon wrote: > +static inline unsigned long tlb_get_unmap_granule(struct mmu_gather *tlb) > +{ > + if (tlb->cleared_ptes) > + return PAGE_SIZE; > + if (tlb->cleared_pmds) > + return PMD_SIZE; > + if (tlb->cleared_puds) > + return PUD_SIZE; > + if (tlb->cleared_p4ds) > + return P4D_SIZE; > + > + return PAGE_SIZE; > +}
When doing the x86 patch; I found _SHIFT more useful than _SIZE.
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