Messages in this thread |  | | | Subject | Re: [RFC][PATCH 4/6] arm, mm: Convert arm to generic tlb | | From | Peter Zijlstra <> | | Date | Thu, 17 May 2012 18:24:44 +0200 |
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On Thu, 2012-05-17 at 17:00 +0100, Catalin Marinas wrote:
> BTW, looking at your tlb-unify branch, does tlb_remove_table() call > tlb_flush/tlb_flush_mmu before freeing the tables? I can only see > tlb_remove_page() doing this. On ARM, even UP, we need the TLB flushing > after clearing the pmd and before freeing the pte page table (and > ideally doing it less often than at every pte_free_tlb() call).
No I don't think it does, so far the only archs using the RCU stuff are ppc,sparc and s390 and none of those needed that (Xen might join them soon though). But I will have to look and consider this more carefully. I 'lost' most of the ppc/sparc/s390 details from memory to say this with any certainty.
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