lib: build list_sort() only if needed

[safe/jmp/linux-2.6] / fs / proc / task_nommu.c

diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index 12c2037..5d9fd64 100644 (file)
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -110,9 +110,13 @@ int task_statm(struct mm_struct *mm, int *shared, int *text,
                }
        }
 
-       size += (*text = mm->end_code - mm->start_code);
-       size += (*data = mm->start_stack - mm->start_data);
+       *text = (PAGE_ALIGN(mm->end_code) - (mm->start_code & PAGE_MASK))
+               >> PAGE_SHIFT;
+       *data = (PAGE_ALIGN(mm->start_stack) - (mm->start_data & PAGE_MASK))
+               >> PAGE_SHIFT;
        up_read(&mm->mmap_sem);
+       size >>= PAGE_SHIFT;
+       size += *text + *data;
        *resident = size;
        return size;
 }
@@ -135,7 +139,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma)
                struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
                dev = inode->i_sb->s_dev;
                ino = inode->i_ino;
-               pgoff = (loff_t)vma->pg_off << PAGE_SHIFT;
+               pgoff = (loff_t)vma->vm_pgoff << PAGE_SHIFT;
        }
 
        seq_printf(m,
@@ -189,6 +193,7 @@ static void *m_start(struct seq_file *m, loff_t *pos)
                priv->task = NULL;
                return NULL;
        }
+       down_read(&mm->mmap_sem);
 
        /* start from the Nth VMA */
        for (p = rb_first(&mm->mm_rb); p; p = rb_next(p))