Fold dm_dispatch_clone_request into it's only caller, and use a switch
statement to single dispatch for the handling of the different return
values from blk_insert_cloned_request.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
drivers/md/dm-rq.c | 22 +++++++++-------------
1 file changed, 9 insertions(+), 13 deletions(-)
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index 8f6117342d322..6948d5db90925 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -303,17 +303,6 @@ static void end_clone_request(struct request *clone, blk_status_t error)
dm_complete_request(tio->orig, error);
}
-static blk_status_t dm_dispatch_clone_request(struct request *clone, struct request *rq)
-{
- blk_status_t r;
-
- r = blk_insert_cloned_request(clone);
- if (r != BLK_STS_OK && r != BLK_STS_RESOURCE && r != BLK_STS_DEV_RESOURCE)
- /* must complete clone in terms of original request */
- dm_complete_request(rq, r);
- return r;
-}
-
static int dm_rq_bio_constructor(struct bio *bio, struct bio *bio_orig,
void *data)
{
@@ -394,13 +383,20 @@ static int map_request(struct dm_rq_target_io *tio)
/* The target has remapped the I/O so dispatch it */
trace_block_rq_remap(clone, disk_devt(dm_disk(md)),
blk_rq_pos(rq));
- ret = dm_dispatch_clone_request(clone, rq);
- if (ret == BLK_STS_RESOURCE || ret == BLK_STS_DEV_RESOURCE) {
+ ret = blk_insert_cloned_request(clone);
+ switch (ret) {
+ case BLK_STS_OK:
+ break;
+ case BLK_STS_RESOURCE:
+ case BLK_STS_DEV_RESOURCE:
blk_rq_unprep_clone(clone);
blk_mq_cleanup_rq(clone);
tio->ti->type->release_clone_rq(clone, &tio->info);
tio->clone = NULL;
return DM_MAPIO_REQUEUE;
+ default:
+ /* must complete clone in terms of original request */
+ dm_complete_request(rq, ret);
}
break;
case DM_MAPIO_REQUEUE:
--
2.30.2
