40088 +0100

x86: fix page-present check in cpa_flush_range

pte_present() might return true for PROT_NONE mappings.
Explicitely check the present bit.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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