diff options
Diffstat (limited to 'arch/x86/mm')
| -rw-r--r-- | arch/x86/mm/highmem_32.c | 4 | ||||
| -rw-r--r-- | arch/x86/mm/hugetlbpage.c | 30 | ||||
| -rw-r--r-- | arch/x86/mm/numa_emulation.c | 4 |
3 files changed, 17 insertions, 21 deletions
diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c index f4f29b19fac..6f31ee56c00 100644 --- a/arch/x86/mm/highmem_32.c +++ b/arch/x86/mm/highmem_32.c @@ -51,11 +51,11 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot) } EXPORT_SYMBOL(kmap_atomic_prot); -void *__kmap_atomic(struct page *page) +void *kmap_atomic(struct page *page) { return kmap_atomic_prot(page, kmap_prot); } -EXPORT_SYMBOL(__kmap_atomic); +EXPORT_SYMBOL(kmap_atomic); /* * This is the same as kmap_atomic() but can map memory that doesn't diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c index f581a18c0d4..f6679a7fb8c 100644 --- a/arch/x86/mm/hugetlbpage.c +++ b/arch/x86/mm/hugetlbpage.c @@ -308,10 +308,11 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file, { struct hstate *h = hstate_file(file); struct mm_struct *mm = current->mm; - struct vm_area_struct *vma, *prev_vma; - unsigned long base = mm->mmap_base, addr = addr0; + struct vm_area_struct *vma; + unsigned long base = mm->mmap_base; + unsigned long addr = addr0; unsigned long largest_hole = mm->cached_hole_size; - int first_time = 1; + unsigned long start_addr; /* don't allow allocations above current base */ if (mm->free_area_cache > base) @@ -322,6 +323,8 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file, mm->free_area_cache = base; } try_again: + start_addr = mm->free_area_cache; + /* make sure it can fit in the remaining address space */ if (mm->free_area_cache < len) goto fail; @@ -333,24 +336,18 @@ try_again: * Lookup failure means no vma is above this address, * i.e. return with success: */ - if (!(vma = find_vma_prev(mm, addr, &prev_vma))) + vma = find_vma(mm, addr); + if (!vma) return addr; - /* - * new region fits between prev_vma->vm_end and - * vma->vm_start, use it: - */ - if (addr + len <= vma->vm_start && - (!prev_vma || (addr >= prev_vma->vm_end))) { + if (addr + len <= vma->vm_start) { /* remember the address as a hint for next time */ mm->cached_hole_size = largest_hole; return (mm->free_area_cache = addr); - } else { + } else if (mm->free_area_cache == vma->vm_end) { /* pull free_area_cache down to the first hole */ - if (mm->free_area_cache == vma->vm_end) { - mm->free_area_cache = vma->vm_start; - mm->cached_hole_size = largest_hole; - } + mm->free_area_cache = vma->vm_start; + mm->cached_hole_size = largest_hole; } /* remember the largest hole we saw so far */ @@ -366,10 +363,9 @@ fail: * if hint left us with no space for the requested * mapping then try again: */ - if (first_time) { + if (start_addr != base) { mm->free_area_cache = base; largest_hole = 0; - first_time = 0; goto try_again; } /* diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c index 46db56845f1..53489ff6bf8 100644 --- a/arch/x86/mm/numa_emulation.c +++ b/arch/x86/mm/numa_emulation.c @@ -28,7 +28,7 @@ static int __init emu_find_memblk_by_nid(int nid, const struct numa_meminfo *mi) return -ENOENT; } -static u64 mem_hole_size(u64 start, u64 end) +static u64 __init mem_hole_size(u64 start, u64 end) { unsigned long start_pfn = PFN_UP(start); unsigned long end_pfn = PFN_DOWN(end); @@ -60,7 +60,7 @@ static int __init emu_setup_memblk(struct numa_meminfo *ei, eb->nid = nid; if (emu_nid_to_phys[nid] == NUMA_NO_NODE) - emu_nid_to_phys[nid] = pb->nid; + emu_nid_to_phys[nid] = nid; pb->start += size; if (pb->start >= pb->end) { |