diff --git a/libgralloc/alloc_controller.cpp b/libgralloc/alloc_controller.cpp
index f02cf53..3abf069 100644
--- a/libgralloc/alloc_controller.cpp
+++ b/libgralloc/alloc_controller.cpp
@@ -136,6 +136,9 @@ int IonController::allocate(alloc_data& data, int usage,
     if(usage & GRALLOC_USAGE_PROTECTED)
         ionFlags |= ION_SECURE;
 
+    if(usage & GRALLOC_USAGE_PRIVATE_DO_NOT_MAP)
+        data.allocType  =  private_handle_t::PRIV_FLAGS_NOT_MAPPED;
+
     // if no flags are set, default to
     // EBI heap, so that bypass can work
     // we can fall back to system heap if
diff --git a/libgralloc/gralloc_priv.h b/libgralloc/gralloc_priv.h
index 233a24e..7ef6f54 100644
--- a/libgralloc/gralloc_priv.h
+++ b/libgralloc/gralloc_priv.h
@@ -74,6 +74,9 @@ enum {
      * and may need to be moved if the gralloc API changes
      */
     GRALLOC_USAGE_PRIVATE_UNSYNCHRONIZED  =       0X00040000,
+
+    /* Set this flag when you need to avoid mapping the memory in userspace */
+    GRALLOC_USAGE_PRIVATE_DO_NOT_MAP      =       0X00080000,
 };
 
 enum {
@@ -317,6 +320,7 @@ struct private_handle_t {
         PRIV_FLAGS_HWC_LOCK       = 0x00000200, // Set by HWC when storing the handle
         PRIV_FLAGS_SECURE_BUFFER  = 0x00000400,
         PRIV_FLAGS_UNSYNCHRONIZED = 0x00000800, // For explicit synchronization
+        PRIV_FLAGS_NOT_MAPPED     = 0x00001000, // Not mapped in userspace
     };
 
     // file-descriptors
diff --git a/libgralloc/ionalloc.cpp b/libgralloc/ionalloc.cpp
index f89f853..94a27e3 100644
--- a/libgralloc/ionalloc.cpp
+++ b/libgralloc/ionalloc.cpp
@@ -34,6 +34,7 @@
 #include <fcntl.h>
 #include <cutils/log.h>
 #include <errno.h>
+#include "gralloc_priv.h"
 #include "ionalloc.h"
 
 using gralloc::IonAlloc;
@@ -116,7 +117,8 @@ int IonAlloc::alloc_buffer(alloc_data& data)
         return err;
     }
 
-    if(!(data.flags & ION_SECURE)) {
+    if(!(data.flags & ION_SECURE) &&
+       !(data.allocType & private_handle_t::PRIV_FLAGS_NOT_MAPPED)) {
 
         base = mmap(0, ionAllocData.len, PROT_READ|PROT_WRITE,
                                 MAP_SHARED, fd_data.fd, 0);
diff --git a/liboverlay/overlayLib.cpp b/liboverlay/overlayLib.cpp
index 0175c66..1e1b5e6 100755
--- a/liboverlay/overlayLib.cpp
+++ b/liboverlay/overlayLib.cpp
@@ -1830,8 +1830,9 @@ bool OverlayDataChannel::mapRotatorMemory(int num_buffers, bool uiChannel, int r
     data.align = getpagesize();
     data.uncached = true;
 
-    int allocFlags = GRALLOC_USAGE_PRIVATE_MM_HEAP   |
-                     GRALLOC_USAGE_PRIVATE_WRITEBACK_HEAP;
+    int allocFlags = GRALLOC_USAGE_PRIVATE_MM_HEAP       |
+                     GRALLOC_USAGE_PRIVATE_WRITEBACK_HEAP|
+                     GRALLOC_USAGE_PRIVATE_DO_NOT_MAP;
 
     if(mSecure) {
         allocFlags |= GRALLOC_USAGE_PROTECTED;
diff --git a/liboverlay/overlayLibUI.cpp b/liboverlay/overlayLibUI.cpp
index 4f9362f..3e2e850 100755
--- a/liboverlay/overlayLibUI.cpp
+++ b/liboverlay/overlayLibUI.cpp
@@ -164,7 +164,8 @@ status_t Rotator::startRotSession(msm_rotator_img_info& rotInfo,
                          GRALLOC_USAGE_PRIVATE_WRITEBACK_HEAP   |
                          GRALLOC_USAGE_PRIVATE_ADSP_HEAP        |
                          GRALLOC_USAGE_PRIVATE_IOMMU_HEAP       |
-                         GRALLOC_USAGE_PRIVATE_SMI_HEAP;
+                         GRALLOC_USAGE_PRIVATE_SMI_HEAP         |
+                         GRALLOC_USAGE_PRIVATE_DO_NOT_MAP;
 
         int err = mAlloc->allocate(data, allocFlags, 0);