x86: cpa, check if we changed anything and tlb flushing is necessary

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Flush tlbs only when there was a real change.

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

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Thomas Gleixner 2008-02-04 16:48:07 +01:00 • committed by Ingo Molnar

parent 72e458dfa6

commit f4ae5da0e8

1 changed files with 17 additions and 1 deletions

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18

arch/x86/mm/pageattr.c

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