On Thu, Oct 2, 2014 at 6:29 AM, Mel Gorman <[email protected]> wrote:
> +
> + /* Recheck VMA as permissions can change during migration started */
> + if (is_write_migration_entry(entry) && (vma->vm_flags & (VM_WRITE)))
> pte = pte_mkwrite(pte);
Side note: we have a "maybe_mkwrite()" helper for the VM_WRITE testing
case. So I'd almost do this as
if (is_write_migration_entry(entry))
pte = maybe_mkwrite(pte, vma);
instead.
Linus
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