src/hotspot/share/gc/z/z_globals.hpp

*** 56,65 ****
--- 56,69 ----
                                                                              \
    experimental(uintx, ZUncommitDelay, 5 * 60,                               \
            "Uncommit memory if it has been unused for the specified "        \
            "amount of time (in seconds)")                                    \
                                                                              \
+   experimental(bool, ZAllowHeapOnFileSystem, false,                         \
+           "Allow to use filesystem as Java heap backing storage "           \
+           "specified by -XX:AllocateHeapAt")                                \
+                                                                             \
    diagnostic(uint, ZStatisticsInterval, 10,                                 \
            "Time between statistics print outs (in seconds)")                \
            range(1, (uint)-1)                                                \
                                                                              \
    diagnostic(bool, ZProactive, true,                                        \