From: Bart Van Assche <bvanassche@acm.org>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org, Damien Le Moal <dlemoal@kernel.org>,
Christoph Hellwig <hch@lst.de>,
Bart Van Assche <bvanassche@acm.org>
Subject: [PATCH v2 0/4] Improve I/O priority support in mq-deadline for zoned writes
Date: Mon, 18 Dec 2023 13:13:38 -0800 [thread overview]
Message-ID: <20231218211342.2179689-1-bvanassche@acm.org> (raw)
Hi Jens,
This patch series prevents that the mq-deadline I/O scheduler submits zoned
writes out of order if different writes for the same zone have different I/O
priorities. Please consider these patches for the next merge window.
Thanks,
Bart.
Changes compared to v1:
- Changed the approach from ignoring the I/O priority of zoned writes to using
the I/O priority of pending zoned writes.
- Included two unit tests.
Bart Van Assche (4):
block/mq-deadline: Rename dd_rq_ioclass() and change its return type
block/mq-deadline: Introduce dd_bio_ioclass()
block/mq-deadline: Introduce deadline_first_rq_past_pos()
block/mq-deadline: Prevent zoned write reordering due to I/O
prioritization
block/Kconfig.iosched | 5 ++
block/mq-deadline.c | 135 +++++++++++++++++++++++-------
block/mq-deadline_test.c | 175 +++++++++++++++++++++++++++++++++++++++
include/linux/blk-mq.h | 17 ++++
4 files changed, 300 insertions(+), 32 deletions(-)
create mode 100644 block/mq-deadline_test.c
next reply other threads:[~2023-12-18 21:14 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-18 21:13 Bart Van Assche [this message]
2023-12-18 21:13 ` [PATCH v2 1/4] block/mq-deadline: Rename dd_rq_ioclass() and change its return type Bart Van Assche
2023-12-18 21:13 ` [PATCH v2 2/4] block/mq-deadline: Introduce dd_bio_ioclass() Bart Van Assche
2023-12-18 21:13 ` [PATCH v2 3/4] block/mq-deadline: Introduce deadline_first_rq_past_pos() Bart Van Assche
2023-12-18 21:13 ` [PATCH v2 4/4] block/mq-deadline: Prevent zoned write reordering due to I/O prioritization Bart Van Assche
2023-12-19 12:10 ` Christoph Hellwig
2023-12-19 17:42 ` Bart Van Assche
2023-12-20 0:05 ` Damien Le Moal
2023-12-20 0:48 ` Bart Van Assche
2023-12-20 1:28 ` Damien Le Moal
2023-12-20 3:53 ` Christoph Hellwig
2023-12-20 4:40 ` Damien Le Moal
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