Messages in this thread Patch in this message | | | Date | Tue, 30 Jun 2009 15:49:21 +0800 | From | Gui Jianfeng <> | Subject | [PATCH] io-controller: Don't expire an idle ioq if it's the only ioq in hierarchy |
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Hi Vivek,
We don't expect expiring an idle ioq if it's the only ioq in the hierarchy.
Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> --- block/elevator-fq.c | 12 ++++++------ 1 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/block/elevator-fq.c b/block/elevator-fq.c index 4270cfd..0b65e16 100644 --- a/block/elevator-fq.c +++ b/block/elevator-fq.c @@ -4058,12 +4058,6 @@ void elv_ioq_completed_request(struct request_queue *q, struct request *rq) elv_clear_ioq_slice_new(ioq); } - if (elv_ioq_class_idle(ioq)) { - if (elv_iosched_expire_ioq(q, 1, 0)) - elv_ioq_slice_expired(q); - goto done; - } - /* * If there is only root group present, don't expire the queue * for single queue ioschedulers (noop, deadline, AS). It is @@ -4077,6 +4071,12 @@ void elv_ioq_completed_request(struct request_queue *q, struct request *rq) goto done; } + if (elv_ioq_class_idle(ioq)) { + if (elv_iosched_expire_ioq(q, 1, 0)) + elv_ioq_slice_expired(q); + goto done; + } + /* For async queue try to do wait busy */ if (efqd->fairness && !elv_ioq_sync(ioq) && !ioq->nr_queued && (elv_iog_nr_active(iog) <= 1)) { -- 1.5.4.rc3
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