| Message ID | 20200922023251.47712-3-snitzer@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | dm: fix then improve bio splitting | expand |
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index d948cd522431..6ed05ca65a0f 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1744,9 +1744,11 @@ static blk_qc_t dm_process_bio(struct mapped_device *md, } /* - * If in ->queue_bio we need to use blk_queue_split(), otherwise + * If in ->submit_bio we need to use blk_queue_split(), otherwise * queue_limits for abnormal requests (e.g. discard, writesame, etc) * won't be imposed. + * If called from dm_wq_work() for deferred bio processing, bio + * was already handled by following code with previous ->submit_bio. */ if (current->bio_list) { if (is_abnormal_io(bio))
Refer to the correct function (->submit_bio instead of ->queue_bio). Also, add details about why using blk_queue_split() isn't needed for dm_wq_work()'s call to dm_process_bio(). Fixes: c62b37d96b6eb ("block: move ->make_request_fn to struct block_device_operations") Signed-off-by: Mike Snitzer <snitzer@redhat.com> --- drivers/md/dm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)