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Diffstat (limited to 'arch/x86/mm/hugetlbpage.c')
-rw-r--r--arch/x86/mm/hugetlbpage.c101
1 files changed, 0 insertions, 101 deletions
diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
index 807a5859a3c4..58f7f2bd535d 100644
--- a/arch/x86/mm/hugetlbpage.c
+++ b/arch/x86/mm/hugetlbpage.c
@@ -19,107 +19,6 @@
#include <asm/tlbflush.h>
#include <asm/elf.h>
-#ifdef CONFIG_HUGETLB_PAGE
-static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
- unsigned long addr, unsigned long len,
- unsigned long pgoff, unsigned long flags)
-{
- struct hstate *h = hstate_file(file);
- struct vm_unmapped_area_info info = {};
-
- info.length = len;
- info.low_limit = get_mmap_base(1);
-
- /*
- * If hint address is above DEFAULT_MAP_WINDOW, look for unmapped area
- * in the full address space.
- */
- info.high_limit = in_32bit_syscall() ?
- task_size_32bit() : task_size_64bit(addr > DEFAULT_MAP_WINDOW);
-
- info.align_mask = PAGE_MASK & ~huge_page_mask(h);
- return vm_unmapped_area(&info);
-}
-
-static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
- unsigned long addr, unsigned long len,
- unsigned long pgoff, unsigned long flags)
-{
- struct hstate *h = hstate_file(file);
- struct vm_unmapped_area_info info = {};
-
- info.flags = VM_UNMAPPED_AREA_TOPDOWN;
- info.length = len;
- info.low_limit = PAGE_SIZE;
- info.high_limit = get_mmap_base(0);
-
- /*
- * If hint address is above DEFAULT_MAP_WINDOW, look for unmapped area
- * in the full address space.
- */
- if (addr > DEFAULT_MAP_WINDOW && !in_32bit_syscall())
- info.high_limit += TASK_SIZE_MAX - DEFAULT_MAP_WINDOW;
-
- info.align_mask = PAGE_MASK & ~huge_page_mask(h);
- addr = vm_unmapped_area(&info);
-
- /*
- * A failed mmap() very likely causes application failure,
- * so fall back to the bottom-up function here. This scenario
- * can happen with large stack limits and large mmap()
- * allocations.
- */
- if (addr & ~PAGE_MASK) {
- VM_BUG_ON(addr != -ENOMEM);
- info.flags = 0;
- info.low_limit = TASK_UNMAPPED_BASE;
- info.high_limit = TASK_SIZE_LOW;
- addr = vm_unmapped_area(&info);
- }
-
- return addr;
-}
-
-unsigned long
-hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
- unsigned long len, unsigned long pgoff, unsigned long flags)
-{
- struct hstate *h = hstate_file(file);
- struct mm_struct *mm = current->mm;
- struct vm_area_struct *vma;
-
- if (len & ~huge_page_mask(h))
- return -EINVAL;
-
- if (len > TASK_SIZE)
- return -ENOMEM;
-
- /* No address checking. See comment at mmap_address_hint_valid() */
- if (flags & MAP_FIXED) {
- if (prepare_hugepage_range(file, addr, len))
- return -EINVAL;
- return addr;
- }
-
- if (addr) {
- addr &= huge_page_mask(h);
- if (!mmap_address_hint_valid(addr, len))
- goto get_unmapped_area;
-
- vma = find_vma(mm, addr);
- if (!vma || addr + len <= vm_start_gap(vma))
- return addr;
- }
-
-get_unmapped_area:
- if (!test_bit(MMF_TOPDOWN, &mm->flags))
- return hugetlb_get_unmapped_area_bottomup(file, addr, len,
- pgoff, flags);
- else
- return hugetlb_get_unmapped_area_topdown(file, addr, len,
- pgoff, flags);
-}
-#endif /* CONFIG_HUGETLB_PAGE */
#ifdef CONFIG_X86_64
bool __init arch_hugetlb_valid_size(unsigned long size)