.

bigfile/tests/test_virtmem.c

@@ -1574,7 +1574,36 @@ void test_file_access_mmapbase(void)
     ok1(!M(vma, 2));    CHECK_NOPAGE(       102                      );
     ok1(!M(vma, 3));    CHECK_NOPAGE(       103                      );
 
+    diag("writeout (store+mark)");
+    mkdirty2(1000);
+    file.nstoreblk = 0;
+    ok1(!fileh_dirty_writeout(fh, WRITEOUT_STORE | WRITEOUT_MARKSTORED));
+    ok1(file.nstoreblk == 2);
+
+    ok1(!M(vma, 0));    CHECK_NOPAGE(         100                      );
+    ok1(!M(vma, 1));    CHECK_NOPAGE(         101                      );
+                        CHECK_NOPAGE(         102                      );
+                        CHECK_NOPAGE(         103                      );
+
+    CHECK_MRU   (/*empty*/);
+    CHECK_DIRTY (/*empty*/);
 
+    vma_unmap(vma);
+    err = fileh_mmap(vma, fh, 100, 4);
+
+    /* data saved; served from base layer */
+    ok1(B(vma, 0*PSb + 0) == 1000);
+    ok1(B(vma, 0*PSb + 1) ==  100);
+    ok1(B(vma, 0*PSb + PSb - 1) == 100);
+
+    ok1(B(vma, 2*PSb + 0) == 1002);
+    ok1(B(vma, 2*PSb + 1) ==  102);
+    ok1(B(vma, 2*PSb + PSb - 1) == 102);
+
+    ok1(!M(vma, 0));    CHECK_NOPAGE(       100                      );
+    ok1(!M(vma, 1));    CHECK_NOPAGE(       101                      );
+    ok1(!M(vma, 2));    CHECK_NOPAGE(       102                      );
+    ok1(!M(vma, 3));    CHECK_NOPAGE(       103                      );
 
     // XXX invalidation ?