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From: Ming Lei <ming.lei@redhat.com>
To: Jens Axboe <axboe@kernel.dk>, linux-block@vger.kernel.org
Cc: "Valdis Klētnieks" <valdis.kletnieks@vt.edu>,
	"Nilay Shroff" <nilay@linux.ibm.com>,
	"Christoph Hellwig" <hch@lst.de>,
	"Ming Lei" <ming.lei@redhat.com>
Subject: [PATCH 0/3] block: fix lock dependency between freeze and elevator lock
Date: Wed,  2 Apr 2025 12:38:46 +0800	[thread overview]
Message-ID: <20250402043851.946498-1-ming.lei@redhat.com> (raw)

Hello Jens,

This patchset adds two pair of block internal APIs for addressing recent
lockdep report between freeze and elevator lock.

Thanks,
Ming


Ming Lei (3):
  block: add blk_mq_enter_no_io() and blk_mq_exit_no_io()
  block: don't call freeze queue in elevator_switch() and
    elevator_disable()
  block: use blk_mq_no_io() for avoiding lock dependency

 block/blk-core.c       |  6 ++++--
 block/blk-mq.c         | 25 ++++++++++++++++++-------
 block/blk-mq.h         | 19 +++++++++++++++++++
 block/blk-sysfs.c      |  8 ++++----
 block/blk.h            |  5 +++--
 block/elevator.c       | 11 ++---------
 include/linux/blkdev.h |  8 ++++++++
 7 files changed, 58 insertions(+), 24 deletions(-)

-- 
2.47.0


             reply	other threads:[~2025-04-02  4:39 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-02  4:38 Ming Lei [this message]
2025-04-02  4:38 ` [PATCH 1/3] block: add blk_mq_enter_no_io() and blk_mq_exit_no_io() Ming Lei
2025-04-02  7:55   ` Ming Lei
2025-04-02 13:50   ` Nilay Shroff
2025-04-02  4:38 ` [PATCH 2/3] block: don't call freeze queue in elevator_switch() and elevator_disable() Ming Lei
2025-04-02 13:45   ` Nilay Shroff
2025-04-02  4:38 ` [PATCH 3/3] block: use blk_mq_no_io() for avoiding lock dependency Ming Lei
2025-04-02 13:43   ` Nilay Shroff
2025-04-03  2:54     ` Ming Lei

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