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-rw-r--r--arch/x86/mm/highmem_32.c4
-rw-r--r--arch/x86/mm/hugetlbpage.c30
-rw-r--r--arch/x86/mm/numa_emulation.c2
3 files changed, 16 insertions, 20 deletions
diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index f4f29b19fac5..6f31ee56c008 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 f581a18c0d4d..f6679a7fb8ca 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 46db56845f18..740b0a355431 100644
--- a/arch/x86/mm/numa_emulation.c
+++ b/arch/x86/mm/numa_emulation.c
@@ -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) {