On 8/22/18 12:07 PM, Coly Li wrote:

On 2018/8/23 2:02 AM, Coly Li wrote:

quoted

From: Shan Hai <redacted>

The writeback thread would exit with a lock held when the cache device is
detached via sysfs interface, fix it by releasing the held lock before exiting
the while-loop.

Fixes: fadd94e05c02 (bcache: quit dc->writeback_thread when BCACHE_DEV_DETACHING is set)
Signed-off-by: Shan Hai <redacted>
Signed-off-by: Coly Li <redacted>
Tested-by: Shenghui Wang <redacted>
Cc: stable@vger.kernel.org #4.17+
---
Changelog:
v2: add Fixes tag by Coly Li.
v1: initial patch from Shan Hai.

Hi Jens,

Please pick this patch for your next pull request. The change from Shan
Hai fixes a real issue which is reported and lately verified by Shenghui
Wang.

Applied - but I fixed up the commit message. Please keep lines at
72 characters for git commits.

-- 
Jens Axboe