Messages in this thread | | | Date | Fri, 8 May 2020 23:36:09 +0200 | From | Joerg Roedel <> | Subject | Re: [RFC PATCH 0/7] mm: Get rid of vmalloc_sync_(un)mappings() |
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On Fri, May 08, 2020 at 02:33:19PM -0700, Andy Lutomirski wrote: > On Fri, May 8, 2020 at 7:40 AM Joerg Roedel <joro@8bytes.org> wrote:
> What's the maximum on other system types? It might make more sense to > take the memory hit and pre-populate all the tables at boot so we > never have to sync them.
Need to look it up for 5-level paging, with 4-level paging its 64 pages to pre-populate the vmalloc area.
But that would not solve the problem on x86-32, which needs to synchronize unmappings on the PMD level.
Joerg
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