x86: add pte_set_flags/clear_flags for pte flag manipulation

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It's not necessary to deconstruct and reconstruct a pte every time its
flags are being updated.  Introduce pte_set_flags and pte_clear_flags
to set and clear flags in a pte.  This allows the flag manipulation
code to be inlined, and avoids calls via paravirt-ops.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Jeremy Fitzhardinge 2009-01-22 14:24:22 -08:00 • committed by Ingo Molnar

parent ab897d2013

commit 6522869c34

1 changed files with 26 additions and 12 deletions

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38

arch/x86/include/asm/pgtable.h

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