[PATCH v2 0/5] btrfs: use the super_block as bdev holder

[Johannes Thumshirn <jth@kernel.org>]

From: Johannes Thumshirn <johannes.thumshirn@wdc.com>

This is a series I've picked up from Christoph, it changes the
block_device's bdev holder from fs_type to the super block.

As the re-base was non trivial, I opted to drop Boris' Reviewed-by tags.

Here's the original cover letter:
Hi all,

this series contains the btrfs parts of the "remove get_super" from June
that managed to get lost.

I've dropped all the reviews from back then as the rebase against the new
mount API conversion led to a lot of non-trivial conflicts.

Josef kindly ran it through the CI farm and provided a fixup based on that.



Link to rebase v1:
https://lore.kernel.org/linux-btrfs/20240214-hch-device-open-v1-0-b153428b4f72@wdc.com/

Link to original posting:
https://lore.kernel.org/linux-btrfs/b083ae24-2273-479f-8c9e-96cb9ef083b8@wdc.com/

Christoph Hellwig (5):
  btrfs: always open the device read-only in btrfs_scan_one_device
  btrfs: call btrfs_close_devices from ->kill_sb
  btrfs: split btrfs_fs_devices.opened
  btrfs: open block devices after superblock creation
  btrfs: use the super_block as holder when mounting file systems

 fs/btrfs/disk-io.c |  4 +--
 fs/btrfs/super.c   | 70 +++++++++++++++++++++++++++-------------------
 fs/btrfs/volumes.c | 62 ++++++++++++++++++++--------------------
 fs/btrfs/volumes.h |  8 ++++--
 4 files changed, 80 insertions(+), 64 deletions(-)

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2.49.0