Move mounting the shared_memory ramfs to launch_daemon.

The directory is created there, so we should also perform the
mount operation there. If we don't, the first boot of a new
Haiku image will not have the ramfs shared_memory, since of
course the kernel can't mount it at a nonexistent directory.

src/servers/launch/InitSharedMemoryDirectoryJob.cpp

@@ -7,6 +7,8 @@
 //! Empty main temporary directory
 
 
+#include <fs_volume.h>
+
 #include "InitSharedMemoryDirectoryJob.h"
 
 
@@ -20,5 +22,12 @@ InitSharedMemoryDirectoryJob::InitSharedMemoryDirectoryJob()
 status_t
 InitSharedMemoryDirectoryJob::Execute()
 {
-	return CreateAndEmpty("/var/shared_memory");
+	status_t status = CreateAndEmpty("/var/shared_memory");
+	if (status != B_OK)
+		return status;
+
+	status = fs_mount_volume("/var/shared_memory", NULL, "ramfs", 0, NULL);
+	if (status < B_OK)
+		return status;
+	return B_OK;
 }

src/system/kernel/fs/vfs_boot.cpp

@@ -555,10 +555,6 @@ vfs_mount_boot_file_system(kernel_args* args)
 		}
 	}
 
-	status = _kern_mount("/boot/system/var/shared_memory", NULL, "ramfs", 0, NULL, 0);
-	if (status < B_OK)
-		dprintf("Failed to mount shared memory FS: %s\n", strerror(status));
-
 	// Now that packagefs is mounted, the boot volume is really ready.
 	gBootDevice = bootDevice;