From: Damien Le Moal <dlemoal@kernel.org>
To: linux-block@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
dm-devel@lists.linux.dev, Mike Snitzer <snitzer@redhat.com>
Subject: [PATCH 00/13] Zone write plugging fixes and cleanup
Date: Tue, 30 Apr 2024 21:51:18 +0900 [thread overview]
Message-ID: <20240430125131.668482-1-dlemoal@kernel.org> (raw)
Jens, Mike,
With more testing of zone write plugging on more device setups,
including weird/test setups (with scsi debug and null_blk), several
issues were identified. This patch series addresses them and cleanup the
code a little to try to make it more obvious.
The first patch is a DM modification to not expose zoned devices
composed solely of conventional zones as zoned block devices. The second
patch is a fix partly related to this to expose a correct max open zones
limit for devices with no limits (which DM devices are as the max
open/active limit is not propagated to the mapped device as there is no
easy way to do that).
Patches 3 to 9 are bug fixes. The most serious problem among theses was
detected with tests using scsi_debug zoned devices and is fixed in
patch 7.
Patches 10 to 13 improve and cleanup the code.
Damien Le Moal (13):
dm: Check that a zoned table leads to a valid mapped device
block: Exclude conventional zones when faking max open limit
block: Fix zone write plug initialization from blk_revalidate_zone_cb()
block: Fix reference counting for zone write plugs in error state
block: Hold a reference on zone write plugs to schedule submission
block: Unhash a zone write plug only if needed
block: Do not remove zone write plugs still in use
block: Fix flush request sector restore
block: Fix handling of non-empty flush write requests to zones
block: Improve blk_zone_write_plug_bio_merged()
block: Improve zone write request completion handling
block: Simplify blk_zone_write_plug_bio_endio()
block: Simplify zone write plug BIO abort
block/blk-flush.c | 3 +-
block/blk-mq.c | 12 +-
block/blk-zoned.c | 269 +++++++++++++++++++++++++++---------------
block/blk.h | 12 +-
drivers/md/dm-table.c | 3 +-
drivers/md/dm-zone.c | 53 +++++++++
6 files changed, 243 insertions(+), 109 deletions(-)
--
2.44.0
next reply other threads:[~2024-04-30 12:51 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-30 12:51 Damien Le Moal [this message]
2024-04-30 12:51 ` [PATCH 01/13] dm: Check that a zoned table leads to a valid mapped device Damien Le Moal
2024-04-30 12:51 ` [PATCH 02/13] block: Exclude conventional zones when faking max open limit Damien Le Moal
2024-04-30 15:24 ` Christoph Hellwig
2024-04-30 19:04 ` Jens Axboe
2024-05-01 4:57 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 03/13] block: Fix zone write plug initialization from blk_revalidate_zone_cb() Damien Le Moal
2024-04-30 15:26 ` Christoph Hellwig
2024-04-30 22:50 ` Damien Le Moal
2024-04-30 23:54 ` Damien Le Moal
2024-04-30 12:51 ` [PATCH 04/13] block: Fix reference counting for zone write plugs in error state Damien Le Moal
2024-04-30 15:28 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 05/13] block: Hold a reference on zone write plugs to schedule submission Damien Le Moal
2024-04-30 15:30 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 06/13] block: Unhash a zone write plug only if needed Damien Le Moal
2024-04-30 15:31 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 07/13] block: Do not remove zone write plugs still in use Damien Le Moal
2024-04-30 15:34 ` Christoph Hellwig
2024-04-30 23:06 ` Damien Le Moal
2024-04-30 23:55 ` Damien Le Moal
2024-04-30 12:51 ` [PATCH 08/13] block: Fix flush request sector restore Damien Le Moal
2024-04-30 15:26 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 09/13] block: Fix handling of non-empty flush write requests to zones Damien Le Moal
2024-04-30 15:34 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 10/13] block: Improve blk_zone_write_plug_bio_merged() Damien Le Moal
2024-04-30 15:35 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 11/13] block: Improve zone write request completion handling Damien Le Moal
2024-04-30 15:39 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 12/13] block: Simplify blk_zone_write_plug_bio_endio() Damien Le Moal
2024-04-30 15:36 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 13/13] block: Simplify zone write plug BIO abort Damien Le Moal
2024-04-30 15:36 ` Christoph Hellwig
2024-04-30 17:00 ` [PATCH 00/13] Zone write plugging fixes and cleanup Johannes Thumshirn
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