diff options
| author |   Christoph Hellwig <hch@lst.de> | 2022-02-15 11:05:40 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2022-02-16 19:39:10 -0700 |
| commit | 9f9adea7187ec1978bd3863f59b7fe27ccf33519 (patch) | |
| tree | 553243c6c9ef1d556f919bb259c1fdb53be544bc | |
| parent | dm: remove useless code from dm_dispatch_clone_request (diff) | |
| download | linux-dev-9f9adea7187ec1978bd3863f59b7fe27ccf33519.tar.xz linux-dev-9f9adea7187ec1978bd3863f59b7fe27ccf33519.zip | |
dm: remove dm_dispatch_clone_request
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@lst.de>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Link: https://lore.kernel.org/r/20220215100540.3892965-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | drivers/md/dm-rq.c | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c index 8f6117342d32..6948d5db9092 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: |