diff options
Diffstat (limited to 'arch/metag')
| -rw-r--r-- | arch/metag/mm/hugetlbpage.c | 52 |
1 files changed, 10 insertions, 42 deletions
diff --git a/arch/metag/mm/hugetlbpage.c b/arch/metag/mm/hugetlbpage.c index 24ceed4f4eed..3c52fa6d0f8e 100644 --- a/arch/metag/mm/hugetlbpage.c +++ b/arch/metag/mm/hugetlbpage.c @@ -192,43 +192,15 @@ new_search: static unsigned long hugetlb_get_unmapped_area_new_pmd(unsigned long len) { - struct mm_struct *mm = current->mm; - struct vm_area_struct *vma; - unsigned long start_addr, addr; - - if (ALIGN_HUGEPT(len) > mm->cached_hole_size) - start_addr = mm->free_area_cache; - else - start_addr = TASK_UNMAPPED_BASE; - -new_search: - addr = ALIGN_HUGEPT(start_addr); - - for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { - if (TASK_SIZE - len < addr) { - /* - * Start a new search - just in case we missed - * some holes. - */ - if (start_addr != TASK_UNMAPPED_BASE) { - start_addr = TASK_UNMAPPED_BASE; - mm->cached_hole_size = 0; - goto new_search; - } - return 0; - } - /* skip ahead if we've aligned right over some vmas */ - if (vma && vma->vm_end <= addr) - continue; - if (!vma || ALIGN_HUGEPT(addr + len) <= vma->vm_start) { -#if HPAGE_SHIFT < HUGEPT_SHIFT - if (len & HUGEPT_MASK) - mm->context.part_huge = addr + len; -#endif - return addr; - } - addr = ALIGN_HUGEPT(vma->vm_end); - } + struct vm_unmapped_area_info info; + + info.flags = 0; + info.length = len; + info.low_limit = TASK_UNMAPPED_BASE; + info.high_limit = TASK_SIZE; + info.align_mask = PAGE_MASK & HUGEPT_MASK; + info.align_offset = 0; + return vm_unmapped_area(&info); } unsigned long @@ -266,11 +238,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, * Find an unmapped naturally aligned set of 4MB blocks that we can use * for huge pages. */ - addr = hugetlb_get_unmapped_area_new_pmd(len); - if (likely(addr)) - return addr; - - return -EINVAL; + return hugetlb_get_unmapped_area_new_pmd(len); } #endif /*HAVE_ARCH_HUGETLB_UNMAPPED_AREA*/ |