linux-kernel - [PATCH 01/14] block: make blk_end_request

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Message-Id: <1240891577-4813-2-git-send-email-tj@kernel.org>
Date:	Tue, 28 Apr 2009 13:06:04 +0900
From:	Tejun Heo <tj@...nel.org>
To:	axboe@...nel.dk, linux-kernel@...r.kernel.org, donari75@...il.com,
	bzolnier@...il.com, joerg@...chain.net, geert@...ux-m68k.org,
	davem@...emloft.net, jdike@...ux.intel.com,
	benh@...nel.crashing.org, Laurent@...vier.info
Cc:	Tejun Heo <tj@...nel.org>
Subject: [PATCH 01/14] block: make blk_end_request_cur() return bool

In the process of mindlessly copying [__]blk_end_request_all(),
[__]blk_end_request_cur() ended up returning void even though they're
partial completion functions.  Fix it.

[ Impact: fix braindead API ]

Signed-off-by: Tejun Heo <tj@...nel.org>
---
 include/linux/blkdev.h |   16 ++++++++++++----
 1 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 12c545e..3a5b1bd 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -903,10 +903,14 @@ static inline void blk_end_request_all(struct request *rq, int error)
  *
  * Description:
  *     Complete the current consecutively mapped chunk from @rq.
+ *
+ * Return:
+ *     %false - we are done with this request
+ *     %true  - still buffers pending for this request
  */
-static inline void blk_end_request_cur(struct request *rq, int error)
+static inline bool blk_end_request_cur(struct request *rq, int error)
 {
-	blk_end_request(rq, error, rq->hard_cur_sectors << 9);
+	return blk_end_request(rq, error, rq->hard_cur_sectors << 9);
 }
 
 /**
@@ -952,10 +956,14 @@ static inline void __blk_end_request_all(struct request *rq, int error)
  * Description:
  *     Complete the current consecutively mapped chunk from @rq.  Must
  *     be called with queue lock held.
+ *
+ * Return:
+ *     %false - we are done with this request
+ *     %true  - still buffers pending for this request
  */
-static inline void __blk_end_request_cur(struct request *rq, int error)
+static inline bool __blk_end_request_cur(struct request *rq, int error)
 {
-	__blk_end_request(rq, error, rq->hard_cur_sectors << 9);
+	return __blk_end_request(rq, error, rq->hard_cur_sectors << 9);
 }
 
 extern void blk_complete_request(struct request *);
-- 
1.6.0.2

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