linux-ext4 - [PATCH v6 0/5] Introduce block provisioning primitives

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Date:   Fri,  5 May 2023 23:29:04 -0700
From:   Sarthak Kukreti <sarthakkukreti@...omium.org>
To:     dm-devel@...hat.com, linux-block@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org
Cc:     Jens Axboe <axboe@...nel.dk>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        Stefan Hajnoczi <stefanha@...hat.com>,
        Alasdair Kergon <agk@...hat.com>,
        Mike Snitzer <snitzer@...nel.org>,
        Christoph Hellwig <hch@...radead.org>,
        Brian Foster <bfoster@...hat.com>,
        Theodore Ts'o <tytso@....edu>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Bart Van Assche <bvanassche@...gle.com>,
        "Darrick J. Wong" <djwong@...nel.org>
Subject: [PATCH v6 0/5] Introduce block provisioning primitives

Hi,

This patch series covers iteration 6 of adding support for block
provisioning requests.

Changes from v5:
- Remove explicit supports_provision from dm devices.
- Move provision sectors io hint to pool_io_hint. Other devices
  will derive the provisioning limits from the stack.
- Remove artifact from v4 to omit cell_defer_no_holder for
  REQ_OP_PROVISION.
- Fix blkdev_fallocate() called with invalid fallocate
  modes to propagate errors correctly.

Sarthak Kukreti (5):
  block: Don't invalidate pagecache for invalid falloc modes
  block: Introduce provisioning primitives
  dm: Add block provisioning support
  dm-thin: Add REQ_OP_PROVISION support
  loop: Add support for provision requests

 block/blk-core.c              |  5 +++
 block/blk-lib.c               | 53 ++++++++++++++++++++++++++
 block/blk-merge.c             | 18 +++++++++
 block/blk-settings.c          | 19 ++++++++++
 block/blk-sysfs.c             |  9 +++++
 block/bounce.c                |  1 +
 block/fops.c                  | 31 +++++++++++++---
 drivers/block/loop.c          | 42 +++++++++++++++++++++
 drivers/md/dm-crypt.c         |  4 +-
 drivers/md/dm-linear.c        |  1 +
 drivers/md/dm-snap.c          |  7 ++++
 drivers/md/dm-table.c         | 23 ++++++++++++
 drivers/md/dm-thin.c          | 70 +++++++++++++++++++++++++++++++++--
 drivers/md/dm.c               |  6 +++
 include/linux/bio.h           |  6 ++-
 include/linux/blk_types.h     |  5 ++-
 include/linux/blkdev.h        | 16 ++++++++
 include/linux/device-mapper.h | 17 +++++++++
 18 files changed, 319 insertions(+), 14 deletions(-)

-- 
2.40.1.521.gf1e218fcd8-goog