Changeset 41116 in vbox

Timestamp:

May 2, 2012 2:20:43 PM (13 years ago)

Author:

vboxsync

Message:

rtR0MemObjNativeLockUser: Force write access to COW pages.

File:

• trunk/src/VBox/Runtime/r0drv/linux/memobj-r0drv-linux.c (modified) (2 diffs)

trunk/src/VBox/Runtime/r0drv/linux/memobj-r0drv-linux.c

@@ -887 +887 @@
     struct vm_area_struct **papVMAs;
     PRTR0MEMOBJLNX pMemLnx;
-    int rc = VERR_NO_MEMORY;
-    NOREF(fAccess);
+    int             rc      = VERR_NO_MEMORY;
+    int  const      fWrite  = fAccess & RTMEM_PROT_WRITE ? 1 : 0;
 
     /*
@@ -917 +917 @@
                             R3Ptr,                  /* Where from. */
                             cPages,                 /* How many pages. */
-                            1,                      /* Write to memory. */
-                            0,                      /* force. */
+                            fWrite,                 /* Write to memory. */
+                            fWrite,                 /* force write access. */
                             &pMemLnx->apPages[0],   /* Page array. */
                             papVMAs);               /* vmas */