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 ---
-refs/heads/master: 5bf14c0727a07ded1bd9fa6d77923d7e6dc32833
+refs/heads/master: 407ac95e2271a310016ced97f407676e79c53c06
diff --git a/trunk/Documentation/ABI/testing/sysfs-cfq-target-latency b/trunk/Documentation/ABI/testing/sysfs-cfq-target-latency
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+What:		/sys/block/<device>/iosched/target_latency
+Date:		March 2012
+contact:	Tao Ma <boyu.mt@taobao.com>
+Description:
+		The /sys/block/<device>/iosched/target_latency only exists
+		when the user sets cfq to /sys/block/<device>/scheduler.
+		It contains an estimated latency time for the cfq. cfq will
+		use it to calculate the time slice used for every task.