On Wed, 3 Aug 2022 20:15:04 +0800, Yu Kuai wrote:

From: Yu Kuai <redacted>

There are two problems can lead to lost wakeup:

1) invalid wakeup on the wrong waitqueue:

For example, 2 * wake_batch tags are put, while only wake_batch threads
are woken:

[...]

Applied, thanks!

[1/1] sbitmap: fix possible io hung due to lost wakeup
      commit: 040b83fcecfb86f3225d3a5de7fd9b3fbccf83b4

Best regards,
-- 
Jens Axboe