On Thu, Sep 21, 2017 at 10:38:22AM -0600, Jens Axboe wrote: > On 09/21/2017 09:17 AM, weiping zhang wrote: > > Signed-off-by: weiping zhang <zhangweiping@xxxxxxxxxxxxxxx> > > --- > > block/blk-sysfs.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c > > index b8362c0..03a6e19 100644 > > --- a/block/blk-sysfs.c > > +++ b/block/blk-sysfs.c > > @@ -75,7 +75,7 @@ queue_requests_store(struct request_queue *q, const char *page, size_t count) > > return ret; > > > > if (nr < BLKDEV_MIN_RQ) > > - nr = BLKDEV_MIN_RQ; > > + return -EINVAL; > > This is potentially breaking existing scripts. > I just want this keep same behavior with the too larger case, If this may make other side effect, I drop this patch. Thanks weiping