On Thu, 2016-12-29 at 00:59 +0100, Linus Walleij wrote: > A problem here is that issueing the requests are in blocking context > while completion is in IRQ context (for most drivers) so we need to > look into this. Hello Linus, Although I'm not sure whether I understood you correctly: are you familiar with the request queue flag BLK_MQ_F_BLOCKING, a flag that was introduced for the nbd driver? Bart.��.n��������+%������w��{.n�����{����n�r������&��z�ޗ�zf���h���~����������_��+v���)ߣ�