From: Liu Bo <bo.liu@linux.alibaba.com>
To: linux-block@vger.kernel.org
Cc: Josef Bacik <josef@toxicpanda.com>, Jens Axboe <axboe@kernel.dk>
Subject: [PATCH v2 0/3] iolatency bug fix
Date: Fri, 25 Jan 2019 08:12:46 +0800 [thread overview]
Message-ID: <20190125001249.72688-1-bo.liu@linux.alibaba.com> (raw)
This set is to fix a hang case if blk-iolatency is in use.
The 1st patch explains the hang problem with more details and provides
a fix.
The 2nd patch adds a warning for unexpected inflight counter.
The 3rd patch is a cleanup of blk_mq_freeze_queue.
v2: reorder the actual fix to the first patch.
Liu Bo (3):
blk-iolatency: fix IO hang due to negative inflight counter
Blk-iolatency: warn on negative inflight IO counter
blk-mq: remove duplicated definition of blk_mq_freeze_queue
block/blk-iolatency.c | 56 ++++++++++++++++++++++++++++++++++++-------
block/blk-mq.h | 1 -
2 files changed, 48 insertions(+), 9 deletions(-)
--
2.20.1.2.gb21ebb6
next reply other threads:[~2019-01-25 0:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-25 0:12 Liu Bo [this message]
2019-01-25 0:12 ` [PATCH v2 1/3] blk-iolatency: fix IO hang due to negative inflight counter Liu Bo
2019-01-25 8:30 ` Johannes Thumshirn
2019-01-29 23:55 ` Liu Bo
2019-01-25 0:12 ` [PATCH v2 2/3] Blk-iolatency: warn on negative inflight IO counter Liu Bo
2019-01-25 0:12 ` [PATCH v2 3/3] blk-mq: remove duplicated definition of blk_mq_freeze_queue Liu Bo
2019-02-08 19:14 ` [PATCH v2 0/3] iolatency bug fix Liu Bo
2019-02-08 19:42 ` Jens Axboe
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