Hello Jens, On Fri, Oct 11, 2024 at 07:12:43AM -0600, Jens Axboe wrote: > On 10/11/24 2:24 AM, Christoph Hellwig wrote: > >> diff --git a/block/elevator.c b/block/elevator.c > >> index 4122026b11f1..1904e217505a 100644 > >> --- a/block/elevator.c > >> +++ b/block/elevator.c > >> @@ -709,13 +709,16 @@ int elv_iosched_load_module(struct gendisk *disk, const char *buf, > >> size_t count) > >> { > >> char elevator_name[ELV_NAME_MAX]; > >> + const char *name; > >> > >> if (!elv_support_iosched(disk->queue)) > >> return -EOPNOTSUPP; > >> > >> strscpy(elevator_name, buf, sizeof(elevator_name)); > >> + name = strstrip(elevator_name); > >> > >> - request_module("%s-iosched", strstrip(elevator_name)); > >> + if (!__elevator_find(name)) > > > > __elevator_find needs to be called with elv_list_lock. > > Doh yes. Breno, I just dropped it for now, just send a v2. Sure, I will be sending soon. Sorry for not finding it earlier.