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ARM: add definitions for pte_mkexec/pte_mknexec

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Other architectures define pte_mkexec to mark a pte as executable.
Add pte_mkexec for ARM to get the same functionality. Although no
other architectures currently define it, also add pte_mknexec to
explicitly allow a pte to be marked as non executable.

Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Laura Abbott 2013-06-17 10:29:12 -07:00 committed by Russell King
parent ebd4922ecc
commit 27ec8da4ac
1 changed files with 2 additions and 0 deletions
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arch/arm/include/asm/pgtable.h
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@ -254,6 +254,8 @@ PTE_BIT_FUNC(mkclean, &= ~L_PTE_DIRTY);
PTE_BIT_FUNC(mkdirty, |= L_PTE_DIRTY);
PTE_BIT_FUNC(mkold, &= ~L_PTE_YOUNG);
PTE_BIT_FUNC(mkyoung, |= L_PTE_YOUNG);
PTE_BIT_FUNC(mkexec, &= ~L_PTE_XN);
PTE_BIT_FUNC(mknexec, |= L_PTE_XN);
static inline pte_t pte_mkspecial(pte_t pte) { return pte; }