From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: [PATCH 09/18] ps3disk: dequeue in-flight request Date: Fri, 8 May 2009 11:54:07 +0900 Message-ID: <1241751256-17435-10-git-send-email-tj@kernel.org> References: <1241751256-17435-1-git-send-email-tj@kernel.org> Return-path: Received: from hera.kernel.org ([140.211.167.34]:36273 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759250AbZEHC4o (ORCPT ); Thu, 7 May 2009 22:56:44 -0400 In-Reply-To: <1241751256-17435-1-git-send-email-tj@kernel.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org, rusty@rustcorp.com.au, James.Bottomley@HansenPartnership.com, mike.miller@hp.com, donari75@gmail.c Cc: Tejun Heo Other than in issue error paths, ps3disk always completely finishes fetched requests. With full completion on error paths, it can be easily converted to dequeueing model. * After L1 r/w call failure, ps3disk_submit_request_sg() now fails the whole request. Issue failure isn't likely to benefit from partial retry anyway and ps3disk uses full failure in completion error path too, so I don't think this amounts to any meaningful functionality loss. * flush completion is converted to _all for consistency. It doesn't make any functional difference. [ Impact: dequeue in-flight request ] Signed-off-by: Tejun Heo Cc: Geert Uytterhoeven --- drivers/block/ps3disk.c | 8 +++++--- 1 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c index 8d58308..f4d8db9 100644 --- a/drivers/block/ps3disk.c +++ b/drivers/block/ps3disk.c @@ -157,7 +157,7 @@ static int ps3disk_submit_request_sg(struct ps3_storage_device *dev, if (res) { dev_err(&dev->sbd.core, "%s:%u: %s failed %d\n", __func__, __LINE__, op, res); - __blk_end_request_cur(req, -EIO); + __blk_end_request_all(req, -EIO); return 0; } @@ -179,7 +179,7 @@ static int ps3disk_submit_flush_request(struct ps3_storage_device *dev, if (res) { dev_err(&dev->sbd.core, "%s:%u: sync cache failed 0x%llx\n", __func__, __LINE__, res); - __blk_end_request_cur(req, -EIO); + __blk_end_request_all(req, -EIO); return 0; } @@ -195,6 +195,8 @@ static void ps3disk_do_request(struct ps3_storage_device *dev, dev_dbg(&dev->sbd.core, "%s:%u\n", __func__, __LINE__); while ((req = elv_next_request(q))) { + blkdev_dequeue_request(req); + if (blk_fs_request(req)) { if (ps3disk_submit_request_sg(dev, req)) break; @@ -204,7 +206,7 @@ static void ps3disk_do_request(struct ps3_storage_device *dev, break; } else { blk_dump_rq_flags(req, DEVICE_NAME " bad request"); - __blk_end_request_cur(req, -EIO); + __blk_end_request_all(req, -EIO); continue; } } -- 1.6.0.2