ideapad: fix software rfkill setting

[pandora-kernel.git] / mm / mmap.c

diff --git a/mm/mmap.c b/mm/mmap.c
index 6182c8a..94f4e34 100644 (file)
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -111,7 +111,7 @@ struct percpu_counter vm_committed_as ____cacheline_aligned_in_smp;
  */
 int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin)
 {
-       unsigned long free, allowed;
+       long free, allowed;
 
        vm_acct_memory(pages);
 
@@ -537,9 +537,12 @@ again:                     remove_next = 1 + (end > next->vm_end);
                 * shrinking vma had, to cover any anon pages imported.
                 */
                if (exporter && exporter->anon_vma && !importer->anon_vma) {
-                       if (anon_vma_clone(importer, exporter))
-                               return -ENOMEM;
+                       int error;
+
                        importer->anon_vma = exporter->anon_vma;
+                       error = anon_vma_clone(importer, exporter);
+                       if (error)
+                               return error;
                }
        }
 
@@ -796,7 +799,7 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
                                end, prev->vm_pgoff, NULL);
                if (err)
                        return NULL;
-               khugepaged_enter_vma_merge(prev);
+               khugepaged_enter_vma_merge(prev, vm_flags);
                return prev;
        }
 
@@ -815,7 +818,7 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
                                next->vm_pgoff - pglen, NULL);
                if (err)
                        return NULL;
-               khugepaged_enter_vma_merge(area);
+               khugepaged_enter_vma_merge(area, vm_flags);
                return area;
        }
 
@@ -1648,14 +1651,17 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
 {
        struct mm_struct *mm = vma->vm_mm;
        struct rlimit *rlim = current->signal->rlim;
-       unsigned long new_start;
+       unsigned long new_start, actual_size;
 
        /* address space limit tests */
        if (!may_expand_vm(mm, grow))
                return -ENOMEM;
 
        /* Stack limit test */
-       if (size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur))
+       actual_size = size;
+       if (size && (vma->vm_flags & (VM_GROWSUP | VM_GROWSDOWN)))
+               actual_size -= PAGE_SIZE;
+       if (actual_size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur))
                return -ENOMEM;
 
        /* mlock limit tests */
@@ -1741,7 +1747,7 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
                }
        }
        vma_unlock_anon_vma(vma);
-       khugepaged_enter_vma_merge(vma);
+       khugepaged_enter_vma_merge(vma, vma->vm_flags);
        return error;
 }
 #endif /* CONFIG_STACK_GROWSUP || CONFIG_IA64 */
@@ -1792,7 +1798,7 @@ int expand_downwards(struct vm_area_struct *vma,
                }
        }
        vma_unlock_anon_vma(vma);
-       khugepaged_enter_vma_merge(vma);
+       khugepaged_enter_vma_merge(vma, vma->vm_flags);
        return error;
 }