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author | Jens Axboe <jens.axboe@oracle.com> | 2009-04-07 08:56:14 +0200 |
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committer | Jens Axboe <jens.axboe@oracle.com> | 2009-04-07 08:56:14 +0200 |
commit | 75e50984f062de2abc4bd84c642923e2c48ce2ae (patch) | |
tree | 57da8b176f77f0823f4a7b42cbf4e25f76bd98a6 | |
parent | 2f5cb7381b737e24c8046fd4aeab571fb71315f5 (diff) | |
download | kernel_samsung_aries-75e50984f062de2abc4bd84c642923e2c48ce2ae.zip kernel_samsung_aries-75e50984f062de2abc4bd84c642923e2c48ce2ae.tar.gz kernel_samsung_aries-75e50984f062de2abc4bd84c642923e2c48ce2ae.tar.bz2 |
cfq-iosched: kill two unused cfqq flags
We only manipulate the must_dispatch and queue_new flags, they are not
tested anymore. So get rid of them.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
-rw-r--r-- | block/cfq-iosched.c | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index a0102a5..11efcf1 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -179,11 +179,9 @@ enum cfqq_state_flags { CFQ_CFQQ_FLAG_wait_request, /* waiting for a request */ CFQ_CFQQ_FLAG_must_alloc, /* must be allowed rq alloc */ CFQ_CFQQ_FLAG_must_alloc_slice, /* per-slice must_alloc flag */ - CFQ_CFQQ_FLAG_must_dispatch, /* must dispatch, even if expired */ CFQ_CFQQ_FLAG_fifo_expire, /* FIFO checked in this slice */ CFQ_CFQQ_FLAG_idle_window, /* slice idling enabled */ CFQ_CFQQ_FLAG_prio_changed, /* task priority has changed */ - CFQ_CFQQ_FLAG_queue_new, /* queue never been serviced */ CFQ_CFQQ_FLAG_slice_new, /* no requests dispatched in slice */ CFQ_CFQQ_FLAG_sync, /* synchronous queue */ }; @@ -206,11 +204,9 @@ CFQ_CFQQ_FNS(on_rr); CFQ_CFQQ_FNS(wait_request); CFQ_CFQQ_FNS(must_alloc); CFQ_CFQQ_FNS(must_alloc_slice); -CFQ_CFQQ_FNS(must_dispatch); CFQ_CFQQ_FNS(fifo_expire); CFQ_CFQQ_FNS(idle_window); CFQ_CFQQ_FNS(prio_changed); -CFQ_CFQQ_FNS(queue_new); CFQ_CFQQ_FNS(slice_new); CFQ_CFQQ_FNS(sync); #undef CFQ_CFQQ_FNS @@ -777,12 +773,10 @@ static void __cfq_set_active_queue(struct cfq_data *cfqd, cfqq->slice_end = 0; cfqq->slice_dispatch = 0; - cfq_clear_cfqq_must_dispatch(cfqq); cfq_clear_cfqq_wait_request(cfqq); cfq_clear_cfqq_must_alloc_slice(cfqq); cfq_clear_cfqq_fifo_expire(cfqq); cfq_mark_cfqq_slice_new(cfqq); - cfq_clear_cfqq_queue_new(cfqq); del_timer(&cfqd->idle_slice_timer); } @@ -802,7 +796,6 @@ __cfq_slice_expired(struct cfq_data *cfqd, struct cfq_queue *cfqq, if (cfq_cfqq_wait_request(cfqq)) del_timer(&cfqd->idle_slice_timer); - cfq_clear_cfqq_must_dispatch(cfqq); cfq_clear_cfqq_wait_request(cfqq); /* @@ -931,7 +924,6 @@ static void cfq_arm_slice_timer(struct cfq_data *cfqd) (sample_valid(cic->ttime_samples) && cic->ttime_mean > 2)) return; - cfq_mark_cfqq_must_dispatch(cfqq); cfq_mark_cfqq_wait_request(cfqq); /* @@ -1520,7 +1512,6 @@ retry: cfqq->cfqd = cfqd; cfq_mark_cfqq_prio_changed(cfqq); - cfq_mark_cfqq_queue_new(cfqq); cfq_init_prio_data(cfqq, ioc); @@ -1912,7 +1903,6 @@ cfq_rq_enqueued(struct cfq_data *cfqd, struct cfq_queue *cfqq, * just now */ if (cfq_cfqq_wait_request(cfqq)) { - cfq_mark_cfqq_must_dispatch(cfqq); del_timer(&cfqd->idle_slice_timer); blk_start_queueing(cfqd->queue); } @@ -1924,7 +1914,6 @@ cfq_rq_enqueued(struct cfq_data *cfqd, struct cfq_queue *cfqq, * this new queue is RT and the current one is BE */ cfq_preempt_queue(cfqd, cfqq); - cfq_mark_cfqq_must_dispatch(cfqq); blk_start_queueing(cfqd->queue); } } @@ -2201,10 +2190,8 @@ static void cfq_idle_slice_timer(unsigned long data) /* * not expired and it has a request pending, let it dispatch */ - if (!RB_EMPTY_ROOT(&cfqq->sort_list)) { - cfq_mark_cfqq_must_dispatch(cfqq); + if (!RB_EMPTY_ROOT(&cfqq->sort_list)) goto out_kick; - } } expire: cfq_slice_expired(cfqd, timed_out); |