Messages in this thread |  | | Date | Thu, 12 Oct 2000 12:05:48 +0200 (CEST) | From | Ingo Molnar <> | Subject | Re: [RFC] atomic pte updates for x86 smp |
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On Thu, 12 Oct 2000, David S. Miller wrote:
> clear neither user-space pgds, nor user-space pmds in PAE mode > > Eh? > > munmap() --> clear_page_tables() --> free_one_pgd() --> pgd_clear
you are right, i was focused too much on the swapping case. I dont think munmap() is a problem in the PAE case. pgd_clear() should stay a 64-bit operation (like in Ben's patch) because we could get a legitimate TLB flush between two 32-bit writes. (the 4 pgd entries are otherwise cached in the CPU core, only TLB flushes reload them.)
Ingo
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