mm: thp: fix /dev/zero MAP_PRIVATE and vm_flags cleanups

[linux-flexiantxendom0-natty.git] / include / linux / mm.h

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 4e43460..72674d4 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -137,7 +137,8 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_RandomReadHint(v)           ((v)->vm_flags & VM_RAND_READ)
 
 /*
- * special vmas that are non-mergable, non-mlock()able
+ * Special vmas that are non-mergable, non-mlock()able.
+ * Note: mm/huge_memory.c VM_NO_THP depends on this definition.
  */
 #define VM_SPECIAL (VM_IO | VM_DONTEXPAND | VM_RESERVED | VM_PFNMAP)