Message ID | 20170405153918.22350-1-bart.vanassche@sandisk.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Wed, 5 Apr 2017 15:39:27 +0000 Received: from MILHUBIP04.sdcorp.global.sandisk.com (Unknown_Domain [10.201.67.162]) (using TLS with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by (Symantec Messaging Gateway) with SMTP id 67.8F.19026.DAF05E85; Wed, 5 Apr 2017 08:39:25 -0700 (PDT) Received: from milsmgip12.sandisk.com (10.177.9.6) by MILHUBIP04.sdcorp.global.sandisk.com (10.177.9.97) with Microsoft SMTP Server id 14.3.319.2; Wed, 5 Apr 2017 08:39:22 -0700 X-AuditID: 0ac94371-41ba798000004a52-7a-58e50fadc971 Received: from exp-402881.sdcorp.global.sandisk.com ( [10.177.8.100]) by (Symantec Messaging Gateway) with SMTP id FD.DA.18148.7AF05E85; Wed, 5 Apr 2017 08:39:22 -0700 (PDT) From: Bart Van Assche <bart.vanassche@sandisk.com> To: Jens Axboe <axboe@kernel.dk> CC: <linux-block@vger.kernel.org>, Bart Van Assche <bart.vanassche@sandisk.com> Subject: [PATCH, RESEND] blk-mq: Remove blk_mq_queue_data.list Date: Wed, 5 Apr 2017 08:39:18 -0700 Message-ID: <20170405153918.22350-1-bart.vanassche@sandisk.com> X-Mailer: git-send-email 2.12.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrBLMWRmVeSWpSXmKPExsXCddJ5ke5a/qcRBqcfG1qsvtvPZrH3lrYD k8fls6UenzfJBTBFcdmkpOZklqUW6dslcGXM6FzIVrBAqGLa65usDYxb+LoYOTkkBEwkvn1o Zu9i5OIQEljKJDHh4XUoZyujxIK9O5m6GDnAqpb0KEDENzNKPJi1iQmkm03ASOLb+5ksILaI gIJEz++VbCA2s0CgxLLJH5hBbGEBO4mXHT/AbBYBFYneWZvAbF4Be4kJJ3YzQ1whL7Fo0wwW kAUSAudZJPZdeM4IUSQocXLmExaIoRISB1+8AGsQElCXOLlkPtMERoFZSMpmISlbwMi0ilEs NzOnODc9tcDQRK84MS8lszhbLzk/dxMjJPwKdzC+vu19iFGAg1GJh9fj8ZMIIdbEsuLK3EOM EhzMSiK8VnxPI4R4UxIrq1KL8uOLSnNSiw8xSnOwKInzZslOjRASSE8sSc1OTS1ILYLJMnFw SjUwTujuFTlksmYX/+eyCA+baQXMq/RkvthIaB1oOX/u3+XudSrzHyjssTV4dKxi+aufb+Vf rHCokUzW+674q8uhrsYmpNDDq3zL0m9ejp59Jyc8ZSlp9Z3Xr9qg4ha1cuveRP2Qt6yhLWt/ ZDRk8oRIXmzn/rXe9/OxujfFtkb625zW7jefvSpBiaU4I9FQi7moOBEAI3tRljsCAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrOKMWRmVeSWpSXmKPExsXCtZEjRXcV/9MIgxdrBSxW3+1nszj4s43R Yu8tbQdmj8tnSz2mrTnP5PF5k1wAcxSXTUpqTmZZapG+XQJXxozOhWwFC4Qqpr2+ydrAuIWv i5GDQ0LARGJJj0IXIxeHkMBGRok9t34zdjFycrAJGEl8ez+TBcQWEVCQ6Pm9kg3EZhbwl9i/ 8B9YXFjATuJlxw9mEJtFQFXiQs8KsF5eAXuJC/tWsIPYEgLyEos2zWCZwMi5gJFhFaNYbmZO cW56ZoGhkV5xYl5KZnG2XnJ+7iZGsNc4o3YwXp9ofoiRiYNTqoGxISHMnFU9X8li6rYDW002 6/j1Gb9vb+vf96mu8jx3hbVQQ1fDk/k3654lnf+uGjzzRck9n6WSn3Ztce27om26XLdZr4Qp ffGCM4qnzn6ZN+v4g6M7JXMniep7FrTf3nf/lYq/3P+0M9c4ayYv7193zG7DrWA22S0LJ965 zVI293tkpJn652M/lViKMxINtZiLihMBROefRooBAAA= MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:63.163.107.225; 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diff --git a/block/blk-mq.c b/block/blk-mq.c index 061fc2cc88d3..f7cd3208bcdf 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -984,17 +984,9 @@ bool blk_mq_dispatch_rq_list(struct blk_mq_hw_ctx *hctx, struct list_head *list) { struct request_queue *q = hctx->queue; struct request *rq; - LIST_HEAD(driver_list); - struct list_head *dptr; int errors, queued, ret = BLK_MQ_RQ_QUEUE_OK; /* - * Start off with dptr being NULL, so we start the first request - * immediately, even if we have more pending. - */ - dptr = NULL; - - /* * Now process all the entries, sending them to the driver. */ errors = queued = 0; @@ -1026,7 +1018,6 @@ bool blk_mq_dispatch_rq_list(struct blk_mq_hw_ctx *hctx, struct list_head *list) list_del_init(&rq->queuelist); bd.rq = rq; - bd.list = dptr; /* * Flag last if we have no more requests, or if we have more @@ -1062,13 +1053,6 @@ bool blk_mq_dispatch_rq_list(struct blk_mq_hw_ctx *hctx, struct list_head *list) if (ret == BLK_MQ_RQ_QUEUE_BUSY) break; - - /* - * We've done the first request. If we have more than 1 - * left in the list, set dptr to defer issue. - */ - if (!dptr && list->next != list->prev) - dptr = &driver_list; } hctx->dispatched[queued_to_index(queued)]++; @@ -1451,7 +1435,6 @@ static void __blk_mq_try_issue_directly(struct request *rq, blk_qc_t *cookie, struct request_queue *q = rq->q; struct blk_mq_queue_data bd = { .rq = rq, - .list = NULL, .last = 1 }; struct blk_mq_hw_ctx *hctx; diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index ea2e9dcd3aef..bdea90d75274 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -81,7 +81,6 @@ struct blk_mq_tag_set { struct blk_mq_queue_data { struct request *rq; - struct list_head *list; bool last; };