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author | Gerald Schaefer <gerald.schaefer@de.ibm.com> | 2008-04-28 02:13:27 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-28 08:58:25 -0700 |
commit | 6d779079bfd1196e077bb1d0a906c37ae770b102 (patch) | |
tree | 880b17a8c5d4badb548773928868606826899c68 /include/linux/hugetlb.h | |
parent | 71fe804b6d56d6a7aed680e096901434cef6a2c3 (diff) | |
download | linux-stable-6d779079bfd1196e077bb1d0a906c37ae770b102.tar.gz linux-stable-6d779079bfd1196e077bb1d0a906c37ae770b102.tar.bz2 linux-stable-6d779079bfd1196e077bb1d0a906c37ae770b102.zip |
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 <schwidefsky@de.ibm.com>
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/hugetlb.h')
-rw-r--r-- | include/linux/hugetlb.h | 46 |
1 files changed, 1 insertions, 45 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index addca4cd4f11..a79e80b689d8 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -8,6 +8,7 @@ #include <linux/mempolicy.h> #include <linux/shm.h> #include <asm/tlbflush.h> +#include <asm/hugetlb.h> struct ctl_table; @@ -51,51 +52,6 @@ int pmd_huge(pmd_t pmd); void hugetlb_change_protection(struct vm_area_struct *vma, unsigned long address, unsigned long end, pgprot_t newprot); -#ifndef ARCH_HAS_HUGEPAGE_ONLY_RANGE -#define is_hugepage_only_range(mm, addr, len) 0 -#endif - -#ifndef ARCH_HAS_HUGETLB_FREE_PGD_RANGE -#define hugetlb_free_pgd_range free_pgd_range -#else -void hugetlb_free_pgd_range(struct mmu_gather **tlb, unsigned long addr, - unsigned long end, unsigned long floor, - unsigned long ceiling); -#endif - -#ifndef ARCH_HAS_PREPARE_HUGEPAGE_RANGE -/* - * 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; -} -#else -int prepare_hugepage_range(unsigned long addr, unsigned long len); -#endif - -#ifndef ARCH_HAS_SETCLEAR_HUGE_PTE -#define set_huge_pte_at(mm, addr, ptep, pte) set_pte_at(mm, addr, ptep, pte) -#define huge_ptep_get_and_clear(mm, addr, ptep) ptep_get_and_clear(mm, addr, ptep) -#else -void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pte); -pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, - pte_t *ptep); -#endif - -#ifndef ARCH_HAS_HUGETLB_PREFAULT_HOOK -#define hugetlb_prefault_arch_hook(mm) do { } while (0) -#else -void hugetlb_prefault_arch_hook(struct mm_struct *mm); -#endif - #else /* !CONFIG_HUGETLB_PAGE */ static inline int is_vm_hugetlb_page(struct vm_area_struct *vma) |