ALSA: usb-audio: Fix races at disconnection

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

diff --git a/mm/memory.c b/mm/memory.c
index 1b1ca17..70f5daf 100644 (file)
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1358,8 +1358,11 @@ unsigned long unmap_vmas(struct mmu_gather *tlb,
                                 * Since no pte has actually been setup, it is
                                 * safe to do nothing in this case.
                                 */
-                               if (vma->vm_file)
-                                       unmap_hugepage_range(vma, start, end, NULL);
+                               if (vma->vm_file) {
+                                       mutex_lock(&vma->vm_file->f_mapping->i_mmap_mutex);
+                                       __unmap_hugepage_range_final(vma, start, end, NULL);
+                                       mutex_unlock(&vma->vm_file->f_mapping->i_mmap_mutex);
+                               }
 
                                start = end;
                        } else