diff --git a/dde_linux/src/lib/usb/include/storage/component.h b/dde_linux/src/lib/usb/include/storage/component.h
index 14abd8490..e25e7e704 100644
--- a/dde_linux/src/lib/usb/include/storage/component.h
+++ b/dde_linux/src/lib/usb/include/storage/component.h
@@ -92,6 +92,8 @@ namespace Block {
 				ops->set_operation(Packet_descriptor::WRITE);
 			}
 
+			void sync() {}
+
 			void complete(Packet_descriptor &packet, bool success)
 			{
 				packet.succeeded(success);
diff --git a/gems/src/server/http_block/main.cc b/gems/src/server/http_block/main.cc
index 6b851ace5..ccffbb57a 100644
--- a/gems/src/server/http_block/main.cc
+++ b/gems/src/server/http_block/main.cc
@@ -178,6 +178,8 @@ namespace Block {
 				ops->set_operation(Packet_descriptor::READ);
 			}
 
+			void sync() {}
+
 			/**
 			 * Signal indicating that transmit thread is ready
 			 */
diff --git a/os/include/block/component.h b/os/include/block/component.h
index b383870dc..e3611f1b7 100644
--- a/os/include/block/component.h
+++ b/os/include/block/component.h
@@ -142,6 +142,8 @@ namespace Block {
 				ops->set_operation(Packet_descriptor::READ);
 				ops->set_operation(Packet_descriptor::WRITE);
 			}
+
+			void sync() { _driver.sync(); }
 	};
 
 	/*
diff --git a/os/include/block/driver.h b/os/include/block/driver.h
index 5a1aafdbd..c035d5436 100644
--- a/os/include/block/driver.h
+++ b/os/include/block/driver.h
@@ -98,6 +98,11 @@ namespace Block {
 		 * Allocate buffer which is suitable for DMA.
 		 */
 		virtual Genode::Ram_dataspace_capability alloc_dma_buffer(Genode::size_t) = 0;
+
+		/**
+		 * Synchronize with with device.
+		 */
+		virtual void sync() = 0;
 	};
 
 
diff --git a/os/include/block_session/block_session.h b/os/include/block_session/block_session.h
index d7eec24e0..9f4c7a161 100644
--- a/os/include/block_session/block_session.h
+++ b/os/include/block_session/block_session.h
@@ -129,6 +129,11 @@ namespace Block {
 		                  Genode::size_t *blk_size,
 		                  Operations     *ops) = 0;
 
+		/**
+		 * Synchronize with block device, like ensuring data to be written
+		 */
+		virtual void sync() = 0;
+
 		/**
 		 * Request packet-transmission channel
 		 */
@@ -146,7 +151,8 @@ namespace Block {
 
 		GENODE_RPC(Rpc_info, void, info, Genode::size_t *, Genode::size_t *, Operations *);
 		GENODE_RPC(Rpc_tx_cap, Genode::Capability<Tx>, _tx_cap);
-		GENODE_RPC_INTERFACE(Rpc_info, Rpc_tx_cap);
+		GENODE_RPC(Rpc_sync, void, sync);
+		GENODE_RPC_INTERFACE(Rpc_info, Rpc_tx_cap, Rpc_sync);
 	};
 }
 
diff --git a/os/include/block_session/client.h b/os/include/block_session/client.h
index b153dccf8..adeb1c142 100644
--- a/os/include/block_session/client.h
+++ b/os/include/block_session/client.h
@@ -55,6 +55,7 @@ namespace Block {
 
 			Tx *tx_channel() { return &_tx; }
 			Tx::Source *tx() { return _tx.source(); }
+			void sync()      { call<Rpc_sync>(); }
 
 			/*
 			 * Wrapper for alloc_packet, allocates 2KB aligned packets
diff --git a/os/src/drivers/ahci/include/ahci_driver_base.h b/os/src/drivers/ahci/include/ahci_driver_base.h
index 2a5e47eab..38440bb2b 100644
--- a/os/src/drivers/ahci/include/ahci_driver_base.h
+++ b/os/src/drivers/ahci/include/ahci_driver_base.h
@@ -78,6 +78,8 @@ class Ahci_driver_base : public Block::Driver
 
 		Ram_dataspace_capability alloc_dma_buffer(size_t size) {
 			return _device->alloc_dma_buffer(size); }
+
+		void sync() {}
 };
 
 #endif /* _AHCI_DRIVER_BASE_H_ */
diff --git a/os/src/drivers/atapi/main.cc b/os/src/drivers/atapi/main.cc
index 52b508b6c..7bf621b19 100644
--- a/os/src/drivers/atapi/main.cc
+++ b/os/src/drivers/atapi/main.cc
@@ -159,6 +159,8 @@ namespace Block {
 					ops->set_operation(Packet_descriptor::WRITE);
 			}
 
+			void sync() {}
+
 			Ata::Device* device() { return _device; };
 
 			/**
diff --git a/os/src/drivers/sd_card/exynos5/driver.h b/os/src/drivers/sd_card/exynos5/driver.h
index 01a235686..013efbbfe 100644
--- a/os/src/drivers/sd_card/exynos5/driver.h
+++ b/os/src/drivers/sd_card/exynos5/driver.h
@@ -125,6 +125,8 @@ class Block::Exynos5_driver : public Block::Driver
 
 		Ram_dataspace_capability alloc_dma_buffer(size_t size) {
 			return Genode::env()->ram_session()->alloc(size, false); }
+
+		void sync() {}
 };
 
 #endif /* _DRIVER_H_ */
diff --git a/os/src/drivers/sd_card/omap4/driver.h b/os/src/drivers/sd_card/omap4/driver.h
index 2a42299d0..bd49d253e 100644
--- a/os/src/drivers/sd_card/omap4/driver.h
+++ b/os/src/drivers/sd_card/omap4/driver.h
@@ -118,6 +118,8 @@ class Block::Omap4_driver : public Block::Driver
 
 		Ram_dataspace_capability alloc_dma_buffer(size_t size) {
 			return Genode::env()->ram_session()->alloc(size, false); }
+
+		void sync() {}
 };
 
 #endif /* _DRIVER_H_ */
diff --git a/os/src/drivers/sd_card/pl180/sd_card.h b/os/src/drivers/sd_card/pl180/sd_card.h
index 837ca4215..82df5b3bb 100644
--- a/os/src/drivers/sd_card/pl180/sd_card.h
+++ b/os/src/drivers/sd_card/pl180/sd_card.h
@@ -135,6 +135,8 @@ class Sd_card : public Block::Driver
 		{
 			return Genode::env()->ram_session()->alloc(size, false);
 		}
+
+		void sync() {}
 };
 
 #endif /* _SD_CARD_H_ */
diff --git a/os/src/server/part_blk/back_end.cc b/os/src/server/part_blk/back_end.cc
index 67aa2da54..c5d2b22ae 100644
--- a/os/src/server/part_blk/back_end.cc
+++ b/os/src/server/part_blk/back_end.cc
@@ -35,7 +35,7 @@ namespace Partition {
 	Partition           *partition(int num) { return (num < MAX_PARTITIONS) ? _part_list[num] : 0; }
 	size_t               blk_size()         { return  _blk_size; }
 	inline unsigned long max_packets()      { return (MAX_PACKET_SIZE / _blk_size); }
-
+	void                 sync()             { _blk.sync(); }
 
 	/**
 	 * Partition table entry format
diff --git a/os/src/server/part_blk/main.cc b/os/src/server/part_blk/main.cc
index 83a2a42c0..8d14ddded 100644
--- a/os/src/server/part_blk/main.cc
+++ b/os/src/server/part_blk/main.cc
@@ -137,6 +137,8 @@ namespace Block {
 				ops->set_operation(Packet_descriptor::WRITE);
 			}
 
+			void sync() { Partition::sync(); }
+
 			Partition::Partition *partition() { return _partition; }
 	};
 
diff --git a/os/src/server/part_blk/part_blk.h b/os/src/server/part_blk/part_blk.h
index 0b2933dfb..a2ee96aff 100644
--- a/os/src/server/part_blk/part_blk.h
+++ b/os/src/server/part_blk/part_blk.h
@@ -72,6 +72,11 @@ namespace Partition {
 	 * Returns block size of back end
 	 */
 	Genode::size_t blk_size();
+
+	/**
+	 * Synchronize with backend device
+	 */
+	void sync();
 }
 
 #endif /* _PART_BLK_H_ */
diff --git a/os/src/server/rom_loopdev/main.cc b/os/src/server/rom_loopdev/main.cc
index 14dfac26e..cee8a8009 100644
--- a/os/src/server/rom_loopdev/main.cc
+++ b/os/src/server/rom_loopdev/main.cc
@@ -173,6 +173,8 @@ namespace Block {
 				*blk_size  = _block_size;
 				ops->set_operation(Block::Packet_descriptor::READ);
 			}
+
+			void sync() {}
 	};
 
 
diff --git a/os/src/test/fb_block_adapter/main.cc b/os/src/test/fb_block_adapter/main.cc
index e38ecefe4..a3cf7dd28 100644
--- a/os/src/test/fb_block_adapter/main.cc
+++ b/os/src/test/fb_block_adapter/main.cc
@@ -153,6 +153,8 @@ namespace Block {
 				ops->set_operation(Packet_descriptor::WRITE);
 			}
 
+			void sync() {}
+
 			/** Signal that transmit thread is ready */
 			void tx_ready() { _startup_sema.up(); }
 	};