diff options
| -rw-r--r-- | fs/hugetlbfs/inode.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index a84832bd06c2..cc5e7e80d557 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -222,13 +222,13 @@ generic_hugetlb_get_unmapped_area(struct file *file, unsigned long addr, unsigned long flags) { struct mm_struct *mm = current->mm; - struct vm_area_struct *vma; + struct vm_area_struct *vma, *prev; struct hstate *h = hstate_file(file); const unsigned long mmap_end = arch_get_mmap_end(addr, len, flags); if (len & ~huge_page_mask(h)) return -EINVAL; - if (len > TASK_SIZE) + if (len > mmap_end - mmap_min_addr) return -ENOMEM; if (flags & MAP_FIXED) { @@ -239,9 +239,10 @@ generic_hugetlb_get_unmapped_area(struct file *file, unsigned long addr, if (addr) { addr = ALIGN(addr, huge_page_size(h)); - vma = find_vma(mm, addr); - if (mmap_end - len >= addr && - (!vma || addr + len <= vm_start_gap(vma))) + vma = find_vma_prev(mm, addr, &prev); + if (mmap_end - len >= addr && addr >= mmap_min_addr && + (!vma || addr + len <= vm_start_gap(vma)) && + (!prev || addr >= vm_end_gap(prev))) return addr; } |