Messages in this thread | | | Date | Mon, 21 Jul 2014 10:34:20 +0200 | From | Jens Axboe <> | Subject | Re: [PATCH] blk-mq: bitmap tag: fix potential unwakeable sleep in bt_get() |
| |
On 2014-07-21 10:32, Alexander Gordeev wrote: > On Mon, Jul 21, 2014 at 10:16:54AM +0200, Jens Axboe wrote: >> What is this patch against? > > v3.16-rc5
My bad, was looking at the wrong sources. What is the race? If the clear and wakeup come in after the prepare_to_wait() but before the io_schedule(), the io_schedule() will be a no-op and it wont actually sleep. Your commit message doesn't mention any particular details.
-- Jens Axboe
| |