Messages in this thread Patch in this message | | | From | Jens Axboe <> | Subject | [PATCH 15/15] cfq-iosched: tighten queue request overlap condition | Date | Tue, 24 Apr 2007 10:15:43 +0200 |
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For tagged devices, allow overlap of requests if the idle window isn't enabled on the current active queue.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com> --- block/cfq-iosched.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 772df89..8093733 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -983,7 +983,8 @@ static struct cfq_queue *cfq_select_queue(struct cfq_data *cfqd) * flight or is idling for a new request, allow either of these * conditions to happen (or time out) before selecting a new queue. */ - if (cfqq->dispatched || timer_pending(&cfqd->idle_slice_timer)) { + if (timer_pending(&cfqd->idle_slice_timer) || + (cfqq->dispatched && cfq_cfqq_idle_window(cfqq))) { cfqq = NULL; goto keep_queue; } -- 1.5.1.1.190.g74474 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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