On 11/07/2017 02:59 AM, Ming Lei wrote: > We have to put the driver tag if dispatch budget can't be got, otherwise > it might cause IO deadlock, especially in case that size of tags is very > small.
Fix looks correct to me, but it's missing a Fixes: line. I tried to go back a little bit, but it looks like this failure case was introduced just recently: commit 88022d7201e96b43f1754b0358fc6bcd8dbdcde1 Author: Ming Lei <[email protected]> Date: Sun Nov 5 02:21:12 2017 +0800 blk-mq: don't handle failure in .get_budget -- Jens Axboe
