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 343ea12..5d9fd64 100644 (file)
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -2,6 +2,7 @@
 #include <linux/mm.h>
 #include <linux/file.h>
 #include <linux/fdtable.h>
+#include <linux/fs_struct.h>
 #include <linux/mount.h>
 #include <linux/ptrace.h>
 #include <linux/seq_file.h>
@@ -49,7 +50,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
        else
                bytes += kobjsize(mm);
        
-       if (current->fs && atomic_read(&current->fs->count) > 1)
+       if (current->fs && current->fs->users > 1)
                sbytes += kobjsize(current->fs);
        else
                bytes += kobjsize(current->fs);
@@ -109,9 +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;
 }
@@ -125,6 +130,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma)
        struct file *file;
        dev_t dev = 0;
        int flags, len;
+       unsigned long long pgoff = 0;
 
        flags = vma->vm_flags;
        file = vma->vm_file;
@@ -133,17 +139,18 @@ 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->vm_pgoff << PAGE_SHIFT;
        }
 
        seq_printf(m,
-                  "%08lx-%08lx %c%c%c%c %08lx %02x:%02x %lu %n",
+                  "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
                   vma->vm_start,
                   vma->vm_end,
                   flags & VM_READ ? 'r' : '-',
                   flags & VM_WRITE ? 'w' : '-',
                   flags & VM_EXEC ? 'x' : '-',
                   flags & VM_MAYSHARE ? flags & VM_SHARED ? 'S' : 's' : 'p',
-                  vma->vm_pgoff << PAGE_SHIFT,
+                  pgoff,
                   MAJOR(dev), MINOR(dev), ino, &len);
 
        if (file) {
@@ -186,6 +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))