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    SubjectRe: [Revert] Re: [PATCH] mm: sync vmalloc address space page tables in alloc_vm_area()
    On 09/01/2011 09:11 AM, Konrad Rzeszutek Wilk wrote:
    > On Thu, Sep 01, 2011 at 12:51:03PM +0100, David Vrabel wrote:
    >> From: David Vrabel <david.vrabel@citrix.com>
    > Andrew,
    >
    > I was wondering if you would be Ok with this patch for 3.1.
    >
    > It is a revert (I can prepare a proper revert if you would like
    > that instead of this patch).
    >
    > The users of this particular function (alloc_vm_area) are just
    > Xen. There are no others.

    I'd prefer to put explicit vmalloc_sync_all()s in the callsites where
    necessary, and ultimately try to work out ways of avoiding it altogether
    (like have some hypercall wrapper which touches the arg memory to make
    sure its mapped?).

    J


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