From: Yu Kuai <yukuai3@huawei.com>
To: <hch@infradead.org>, <tj@kernel.org>, <axboe@kernel.dk>
Cc: <cgroups@vger.kernel.org>, <linux-block@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <yukuai3@huawei.com>,
<yi.zhang@huawei.com>
Subject: [PATCH v4 0/2] cancel all throttled bios in del_gendisk()
Date: Thu, 2 Dec 2021 21:04:38 +0800 [thread overview]
Message-ID: <20211202130440.1943847-1-yukuai3@huawei.com> (raw)
If del_gendisk() is done when some io are still throttled, such io
will not be handled until the throttle is done, which is not
necessary.
Changes in v2:
- move WARN_ON_ONCE() from throtl_rb_first() to it's caller
- merge some patches into one.
Changes in v3:
- some code optimization in patch 1
- hold queue lock to cancel bios in patch 2
Changes in v4:
- delete rcu_read_lock() and rcu_read_unlock() in patch 2
Yu Kuai (2):
blk-throtl: move WARN_ON_ONCE() from throtl_rb_first() to it's caller
block: cancel all throttled bios in del_gendisk()
block/blk-throttle.c | 74 ++++++++++++++++++++++++++++++++++++++++++--
block/blk-throttle.h | 2 ++
block/genhd.c | 2 ++
3 files changed, 75 insertions(+), 3 deletions(-)
--
2.31.1
next reply other threads:[~2021-12-02 12:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-02 13:04 Yu Kuai [this message]
2021-12-02 13:04 ` [PATCH v4 1/2] blk-throtl: move WARN_ON_ONCE() from throtl_rb_first() to it's caller Yu Kuai
2021-12-02 13:04 ` [PATCH v4 2/2] block: cancel all throttled bios in del_gendisk() Yu Kuai
2021-12-02 14:48 ` Michal Koutný
2021-12-03 7:50 ` yukuai (C)
2021-12-03 10:27 ` Michal Koutný
2021-12-04 8:03 ` yukuai (C)
2021-12-06 15:43 ` Michal Koutný
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