x86: CPA return early when requested feature is not available

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Mask out the not supported bits (e.g. NX). If the clr/set masks
are empty after the mask return without changing anything.

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 16:48:06 +01:00 • committed by Ingo Molnar

parent 1c083eb2cb

commit 331e406588

1 changed files with 12 additions and 2 deletions

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14

arch/x86/mm/pageattr.c

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