On Thu, May 10, 2018 at 10:24:19AM -0600, Jens Axboe wrote: > It's not useful, they are internal and/or error handling recovery > commands. > > Acked-by: Paolo Valente <[email protected]>
Reviewed-by: Omar Sandoval <[email protected]> > Signed-off-by: Jens Axboe <[email protected]> > --- > block/blk-mq.c | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/block/blk-mq.c b/block/blk-mq.c > index 4e9d83594cca..64630caaf27e 100644 > --- a/block/blk-mq.c > +++ b/block/blk-mq.c > @@ -360,9 +360,11 @@ static struct request *blk_mq_get_request(struct > request_queue *q, > > /* > * Flush requests are special and go directly to the > - * dispatch list. > + * dispatch list. Don't include reserved tags in the > + * limiting, as it isn't useful. > */ > - if (!op_is_flush(op) && e->type->ops.mq.limit_depth) > + if (!op_is_flush(op) && e->type->ops.mq.limit_depth && > + !(data->flags & BLK_MQ_REQ_RESERVED)) > e->type->ops.mq.limit_depth(op, data); > } > > -- > 2.7.4 >
