linux-kernel - [PATCH 10/12] swim: clean up request completion paths

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Date:	Thu, 23 Apr 2009 21:25:51 +0900
From:	Tejun Heo <tj@...nel.org>
To:	axboe@...nel.dk, linux-kernel@...r.kernel.org, joerg@...chain.net,
	geert@...ux-m68k.org, donari75@...il.com, davem@...emloft.net,
	jdike@...ux.intel.com, benh@...nel.crashing.org,
	Laurent@...vier.info
Cc:	Tejun Heo <tj@...nel.org>
Subject: [PATCH 10/12] swim: clean up request completion paths

swim curiously tries to update request parameters before calling
__blk_end_request() when __blk_end_request() will do it anyway and
unnecessarily checks whether current_nr_sectors is zero right after
fetching.

Drop unnecessary stuff and use standard block layer mechanisms.

[ Impact: cleanup ]

Signed-off-by: Tejun Heo <tj@...nel.org>
Cc: Laurent Vivier <Laurent@...vier.info>
---
 drivers/block/swim.c |    7 -------
 1 files changed, 0 insertions(+), 7 deletions(-)

diff --git a/drivers/block/swim.c b/drivers/block/swim.c
index 6544a7b..97ef426 100644
--- a/drivers/block/swim.c
+++ b/drivers/block/swim.c
@@ -535,10 +535,6 @@ static void redo_fd_request(struct request_queue *q)
 			__blk_end_request_cur(req, -EIO);
 			continue;
 		}
-		if (req->current_nr_sectors == 0) {
-			__blk_end_request_cur(req, 0);
-			continue;
-		}
 		if (!fs->disk_in) {
 			__blk_end_request_cur(req, -EIO);
 			continue;
@@ -561,9 +557,6 @@ static void redo_fd_request(struct request_queue *q)
 				__blk_end_request_cur(req, -EIO);
 				continue;
 			}
-			req->nr_sectors -= req->current_nr_sectors;
-			req->sector += req->current_nr_sectors;
-			req->buffer += req->current_nr_sectors * 512;
 			__blk_end_request_cur(req, 0);
 			break;
 		}
-- 
1.6.0.2

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