On 2021/09/07 23:36, Jens Axboe wrote: > On 9/7/21 5:52 AM, Tetsuo Handa wrote: >> The simplest fix is to call probe function without holding >> major_names_lock [1], but Christoph Hellwig does not like such idea. >> Therefore, instead of holding major_names_lock in blkdev_show(), >> introduce a different lock for blkdev_show() in order to break >> "sb_writers#$N => &p->lock => major_names_lock" dependency chain. > > Agree, that's probably the easiest fix here. Applied, thanks. > Sorry, can you update the patch title to: block: genhd: don't hold major_names_lock in blkdev_show()
