From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from esa2.hgst.iphmx.com ([68.232.143.124]:17058 "EHLO esa2.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751427AbdFFP7j (ORCPT ); Tue, 6 Jun 2017 11:59:39 -0400 From: Bart Van Assche To: "hch@infradead.org" , "linux-block@vger.kernel.org" , "axboe@fb.com" , "ming.lei@redhat.com" Subject: Re: [PATCH v5 01/12] blk-mq: pass correct hctx to blk_mq_try_issue_directly Date: Tue, 6 Jun 2017 15:59:30 +0000 Message-ID: <1496764769.2692.6.camel@sandisk.com> References: <20170606152210.22806-1-ming.lei@redhat.com> <20170606152210.22806-2-ming.lei@redhat.com> In-Reply-To: <20170606152210.22806-2-ming.lei@redhat.com> Content-Type: text/plain; charset="iso-8859-1" MIME-Version: 1.0 Sender: linux-block-owner@vger.kernel.org List-Id: linux-block@vger.kernel.org On Tue, 2017-06-06 at 23:21 +0800, Ming Lei wrote: > When direct issue is done on request picked up from plug list, > the hctx need to be updated with the actual hw queue, otherwise > wrong hctx is used and may hurt performance, especially when > wrong SRCU readlock is acquired/released Reviewed-by: Bart Van Assche =