diff options
| -rw-r--r-- | drivers/md/dm.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 95558432c080..64b50b71400f 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1763,8 +1763,6 @@ static void dm_make_request(struct request_queue *q, struct bio *bio) map = dm_get_live_table(md, &srcu_idx); - blk_queue_split(q, &bio, q->bio_split); - generic_start_io_acct(rw, bio_sectors(bio), &dm_disk(md)->part0); /* if we're suspended, we have to queue this io for later */ @@ -2792,6 +2790,12 @@ int dm_setup_md_queue(struct mapped_device *md) case DM_TYPE_BIO_BASED: dm_init_old_md_queue(md); blk_queue_make_request(md->queue, dm_make_request); + /* + * DM handles splitting bios as needed. Free the bio_split bioset + * since it won't be used (saves 1 process per bio-based DM device). + */ + bioset_free(md->queue->bio_split); + md->queue->bio_split = NULL; break; } |