From 6d779079bfd1196e077bb1d0a906c37ae770b102 Mon Sep 17 00:00:00 2001 From: Gerald Schaefer Date: Mon, 28 Apr 2008 02:13:27 -0700 Subject: hugetlbfs: architecture header cleanup This patch moves all architecture functions for hugetlb to architecture header files (include/asm-foo/hugetlb.h) and converts all macros to inline functions. It also removes (!) ARCH_HAS_HUGEPAGE_ONLY_RANGE, ARCH_HAS_HUGETLB_FREE_PGD_RANGE, ARCH_HAS_PREPARE_HUGEPAGE_RANGE, ARCH_HAS_SETCLEAR_HUGE_PTE and ARCH_HAS_HUGETLB_PREFAULT_HOOK. Getting rid of the ARCH_HAS_xxx #ifdef and macro fugliness should increase readability and maintainability, at the price of some code duplication. An asm-generic common part would have reduced the loc, but we would end up with new ARCH_HAS_xxx defines eventually. Acked-by: Martin Schwidefsky Signed-off-by: Gerald Schaefer Cc: Paul Mundt Cc: "Luck, Tony" Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-x86/hugetlb.h | 49 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 include/asm-x86/hugetlb.h (limited to 'include/asm-x86') diff --git a/include/asm-x86/hugetlb.h b/include/asm-x86/hugetlb.h new file mode 100644 index 000000000000..ec21cedd7149 --- /dev/null +++ b/include/asm-x86/hugetlb.h @@ -0,0 +1,49 @@ +#ifndef _ASM_X86_HUGETLB_H +#define _ASM_X86_HUGETLB_H + +#include + + +static inline int is_hugepage_only_range(struct mm_struct *mm, + unsigned long addr, + unsigned long len) { + return 0; +} + +/* + * If the arch doesn't supply something else, assume that hugepage + * size aligned regions are ok without further preparation. + */ +static inline int prepare_hugepage_range(unsigned long addr, unsigned long len) +{ + if (len & ~HPAGE_MASK) + return -EINVAL; + if (addr & ~HPAGE_MASK) + return -EINVAL; + return 0; +} + +static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) { +} + +static inline void hugetlb_free_pgd_range(struct mmu_gather **tlb, + unsigned long addr, unsigned long end, + unsigned long floor, + unsigned long ceiling) +{ + free_pgd_range(tlb, addr, end, floor, ceiling); +} + +static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte) +{ + set_pte_at(mm, addr, ptep, pte); +} + +static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, + unsigned long addr, pte_t *ptep) +{ + return ptep_get_and_clear(mm, addr, ptep); +} + +#endif /* _ASM_X86_HUGETLB_H */ -- cgit v1.2.3