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64-bit userspace expects the vdso to be mapped at a specific fixed address, which happens to be in the middle of the kernel address space. Because we have split user and kernel pagetables, we need to make special arrangements for the vsyscall mapping to appear in the kernel part of the user pagetable. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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