cfq: cleanup for last_end_request in cfq_data

Actually, last_end_request in cfq_data isn't used now. So lets
just remove it.

Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index ef2f72d..8447fde 100644 (file)
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -122,7 +122,6 @@ struct cfq_data {
        struct cfq_queue *async_idle_cfqq;
 
        sector_t last_position;
-       unsigned long last_end_request;
 
        /*
         * tunables, see top of file
@@ -2164,9 +2163,6 @@ static void cfq_completed_request(struct request_queue *q, struct request *rq)
        if (cfq_cfqq_sync(cfqq))
                cfqd->sync_flight--;
 
-       if (!cfq_class_idle(cfqq))
-               cfqd->last_end_request = now;
-
        if (sync)
                RQ_CIC(rq)->last_end_request = now;
 
@@ -2479,7 +2475,6 @@ static void *cfq_init_queue(struct request_queue *q)
 
        INIT_WORK(&cfqd->unplug_work, cfq_kick_queue);
 
-       cfqd->last_end_request = jiffies;
        cfqd->cfq_quantum = cfq_quantum;
        cfqd->cfq_fifo_expire[0] = cfq_fifo_expire[0];
        cfqd->cfq_fifo_expire[1] = cfq_fifo_expire[1];