SecureFusion: Avoid mmap/munmap on each Lock/Unlock in shared surface pool when being the master.
SecureFusion: Avoid mmap/munmap on each Lock/Unlock in shared surface pool when being the master.

This restores rendering speed a lot for software fallbacks.

Distrotech/DirectFB,djbclark/directfb-core-DirectFB,deniskropp/DirectFB,deniskropp/DirectFB,mtsekm/test,lancebaiyouview/DirectFB,Distrotech/DirectFB,mtsekm/test,DirectFB/directfb,DirectFB/directfb,djbclark/directfb-core-DirectFB,kaostao/directfb,lancebaiyouview/DirectFB,kaostao/directfb,jcdubois/DirectFB,DirectFB/directfb,sklnet/DirectFB,dfbdok/DirectFB1,mtsekm/test,kevleyski/DirectFB-1,deniskropp/DirectFB,sklnet/DirectFB,jcdubois/DirectFB,dfbdok/DirectFB1,kevleyski/directfb,Distrotech/DirectFB,kevleyski/DirectFB-1,kevleyski/directfb,kevleyski/directfb,kevleyski/directfb,lancebaiyouview/DirectFB,kevleyski/DirectFB-1,deniskropp/DirectFB,kevleyski/DirectFB-1,sklnet/DirectFB,djbclark/directfb-core-DirectFB,kaostao/directfb,dfbdok/DirectFB1,sklnet/DirectFB,djbclark/directfb-core-DirectFB,lancebaiyouview/DirectFB,jcdubois/DirectFB