tuntap: add sanity checks about msg_controllen in sendmsg

[mirror_ubuntu-focal-kernel.git] / mm / nommu.c

diff --git a/mm/nommu.c b/mm/nommu.c
index 99b7ec318824c8689d22d4f005016fd61e3b8de8..55ce55c1b21defa127c287c47137909523adb883 100644 (file)
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -359,10 +359,14 @@ void vm_unmap_aliases(void)
 EXPORT_SYMBOL_GPL(vm_unmap_aliases);
 
 /*
- * Implement a stub for vmalloc_sync_all() if the architecture chose not to
- * have one.
+ * Implement a stub for vmalloc_sync_[un]mapping() if the architecture
+ * chose not to have one.
  */
-void __weak vmalloc_sync_all(void)
+void __weak vmalloc_sync_mappings(void)
+{
+}
+
+void __weak vmalloc_sync_unmappings(void)
 {
 }
 
@@ -552,7 +556,7 @@ static void __put_nommu_region(struct vm_region *region)
                up_write(&nommu_region_sem);
 
                if (region->vm_file)
-                       fput(region->vm_file);
+                       vmr_fput(region);
 
                /* IO memory and memory shared directly out of the pagecache
                 * from ramfs/tmpfs mustn't be released here */
@@ -690,7 +694,7 @@ static void delete_vma(struct mm_struct *mm, struct vm_area_struct *vma)
        if (vma->vm_ops && vma->vm_ops->close)
                vma->vm_ops->close(vma);
        if (vma->vm_file)
-               fput(vma->vm_file);
+               vma_fput(vma);
        put_nommu_region(vma->vm_region);
        vm_area_free(vma);
 }
@@ -1213,7 +1217,7 @@ unsigned long do_mmap(struct file *file,
                                        goto error_just_free;
                                }
                        }
-                       fput(region->vm_file);
+                       vmr_fput(region);
                        kmem_cache_free(vm_region_jar, region);
                        region = pregion;
                        result = start;
@@ -1290,10 +1294,10 @@ error_just_free:
        up_write(&nommu_region_sem);
 error:
        if (region->vm_file)
-               fput(region->vm_file);
+               vmr_fput(region);
        kmem_cache_free(vm_region_jar, region);
        if (vma->vm_file)
-               fput(vma->vm_file);
+               vma_fput(vma);
        vm_area_free(vma);
        return ret;