blk_end_request: cleanup 'uptodate' related code (take 4)
This patch converts 'uptodate' arguments of no longer exported
interfaces, end_that_request_first/last, to 'error', and removes
internal conversions for it in blk_end_request interfaces.
Also, this patch removes no longer needed end_io_error().
Cc: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 4bd1803..f5e091b 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -3435,7 +3435,7 @@
/**
* __end_that_request_first - end I/O on a request
* @req: the request being processed
- * @uptodate: 1 for success, 0 for I/O error, < 0 for specific error
+ * @error: 0 for success, < 0 for error
* @nr_bytes: number of bytes to complete
*
* Description:
@@ -3446,29 +3446,22 @@
* 0 - we are done with this request, call end_that_request_last()
* 1 - still buffers pending for this request
**/
-static int __end_that_request_first(struct request *req, int uptodate,
+static int __end_that_request_first(struct request *req, int error,
int nr_bytes)
{
- int total_bytes, bio_nbytes, error, next_idx = 0;
+ int total_bytes, bio_nbytes, next_idx = 0;
struct bio *bio;
blk_add_trace_rq(req->q, req, BLK_TA_COMPLETE);
/*
- * extend uptodate bool to allow < 0 value to be direct io error
- */
- error = 0;
- if (end_io_error(uptodate))
- error = !uptodate ? -EIO : uptodate;
-
- /*
* for a REQ_BLOCK_PC request, we want to carry any eventual
* sense key with us all the way through
*/
if (!blk_pc_request(req))
req->errors = 0;
- if (!uptodate) {
+ if (error) {
if (blk_fs_request(req) && !(req->cmd_flags & REQ_QUIET))
printk("end_request: I/O error, dev %s, sector %llu\n",
req->rq_disk ? req->rq_disk->disk_name : "?",
@@ -3641,17 +3634,9 @@
/*
* queue lock must be held
*/
-static void end_that_request_last(struct request *req, int uptodate)
+static void end_that_request_last(struct request *req, int error)
{
struct gendisk *disk = req->rq_disk;
- int error;
-
- /*
- * extend uptodate bool to allow < 0 value to be direct io error
- */
- error = 0;
- if (end_io_error(uptodate))
- error = !uptodate ? -EIO : uptodate;
if (unlikely(laptop_mode) && blk_fs_request(req))
laptop_io_completion();
@@ -3776,14 +3761,6 @@
static void complete_request(struct request *rq, int error)
{
- /*
- * REMOVEME: This conversion is transitional and will be removed
- * when old end_that_request_* are unexported.
- */
- int uptodate = 1;
- if (error)
- uptodate = (error == -EIO) ? 0 : error;
-
if (blk_rq_tagged(rq))
blk_queue_end_tag(rq->q, rq);
@@ -3793,7 +3770,7 @@
if (blk_bidi_rq(rq) && !rq->end_io)
__blk_put_request(rq->next_rq->q, rq->next_rq);
- end_that_request_last(rq, uptodate);
+ end_that_request_last(rq, error);
}
/**
@@ -3820,21 +3797,14 @@
{
struct request_queue *q = rq->q;
unsigned long flags = 0UL;
- /*
- * REMOVEME: This conversion is transitional and will be removed
- * when old end_that_request_* are unexported.
- */
- int uptodate = 1;
- if (error)
- uptodate = (error == -EIO) ? 0 : error;
if (blk_fs_request(rq) || blk_pc_request(rq)) {
- if (__end_that_request_first(rq, uptodate, nr_bytes))
+ if (__end_that_request_first(rq, error, nr_bytes))
return 1;
/* Bidi request must be completed as a whole */
if (blk_bidi_rq(rq) &&
- __end_that_request_first(rq->next_rq, uptodate, bidi_bytes))
+ __end_that_request_first(rq->next_rq, error, bidi_bytes))
return 1;
}
@@ -3886,16 +3856,8 @@
**/
int __blk_end_request(struct request *rq, int error, int nr_bytes)
{
- /*
- * REMOVEME: This conversion is transitional and will be removed
- * when old end_that_request_* are unexported.
- */
- int uptodate = 1;
- if (error)
- uptodate = (error == -EIO) ? 0 : error;
-
if (blk_fs_request(rq) || blk_pc_request(rq)) {
- if (__end_that_request_first(rq, uptodate, nr_bytes))
+ if (__end_that_request_first(rq, error, nr_bytes))
return 1;
}