linux-stable.git/drivers/md/Kconfig, branch linux-6.8.y

Merge tag 'for-6.8/block-2024-01-08' of git://git.kernel.dk/linux

2024-01-11T21:58:04+00:00

Pull block updates from Jens Axboe:
 "Pretty quiet round this time around. This contains:

   - NVMe updates via Keith:
        - nvme fabrics spec updates (Guixin, Max)
        - nvme target udpates (Guixin, Evan)
        - nvme attribute refactoring (Daniel)
        - nvme-fc numa fix (Keith)

   - MD updates via Song:
        - Fix/Cleanup RCU usage from conf->disks[i].rdev (Yu Kuai)
        - Fix raid5 hang issue (Junxiao Bi)
        - Add Yu Kuai as Reviewer of the md subsystem
        - Remove deprecated flavors (Song Liu)
        - raid1 read error check support (Li Nan)
        - Better handle events off-by-1 case (Alex Lyakas)

   - Efficiency improvements for passthrough (Kundan)

   - Support for mapping integrity data directly (Keith)

   - Zoned write fix (Damien)

   - rnbd fixes (Kees, Santosh, Supriti)

   - Default to a sane discard size granularity (Christoph)

   - Make the default max transfer size naming less confusing
     (Christoph)

   - Remove support for deprecated host aware zoned model (Christoph)

   - Misc fixes (me, Li, Matthew, Min, Ming, Randy, liyouhong, Daniel,
     Bart, Christoph)"

* tag 'for-6.8/block-2024-01-08' of git://git.kernel.dk/linux: (78 commits)
  block: Treat sequential write preferred zone type as invalid
  block: remove disk_clear_zoned
  sd: remove the !ZBC && blk_queue_is_zoned case in sd_read_block_characteristics
  drivers/block/xen-blkback/common.h: Fix spelling typo in comment
  blk-cgroup: fix rcu lockdep warning in blkg_lookup()
  blk-cgroup: don't use removal safe list iterators
  block: floor the discard granularity to the physical block size
  mtd_blkdevs: use the default discard granularity
  bcache: use the default discard granularity
  zram: use the default discard granularity
  null_blk: use the default discard granularity
  nbd: use the default discard granularity
  ubd: use the default discard granularity
  block: default the discard granularity to sector size
  bcache: discard_granularity should not be smaller than a sector
  block: remove two comments in bio_split_discard
  block: rename and document BLK_DEF_MAX_SECTORS
  loop: don't abuse BLK_DEF_MAX_SECTORS
  aoe: don't abuse BLK_DEF_MAX_SECTORS
  null_blk: don't cap max_hw_sectors to BLK_DEF_MAX_SECTORS
  ...

md: Remove deprecated CONFIG_MD_FAULTY

2023-12-19T18:37:50+00:00

md-faulty has been marked as deprecated for 2.5 years. Remove it.

Cc: Christoph Hellwig 
Cc: Jens Axboe 
Cc: Neil Brown 
Cc: Guoqing Jiang 
Cc: Mateusz Grzonka 
Cc: Jes Sorensen 
Signed-off-by: Song Liu 
Reviewed-by: Christoph Hellwig 
Reviewed-by: Hannes Reinecke 
Link: https://lore.kernel.org/r/20231214222107.2016042-4-song@kernel.org

md: Remove deprecated CONFIG_MD_MULTIPATH

2023-12-19T18:37:41+00:00

md-multipath has been marked as deprecated for 2.5 years. Remove it.

Cc: Christoph Hellwig 
Cc: Jens Axboe 
Cc: Neil Brown 
Cc: Guoqing Jiang 
Cc: Mateusz Grzonka 
Cc: Jes Sorensen 
Signed-off-by: Song Liu 
Reviewed-by: Christoph Hellwig 
Reviewed-by: Hannes Reinecke 
Link: https://lore.kernel.org/r/20231214222107.2016042-3-song@kernel.org

md: Remove deprecated CONFIG_MD_LINEAR

2023-12-19T18:16:51+00:00

md-linear has been marked as deprecated for 2.5 years. Remove it.

Cc: Christoph Hellwig 
Cc: Jens Axboe 
Cc: Neil Brown 
Cc: Guoqing Jiang 
Cc: Mateusz Grzonka 
Cc: Jes Sorensen 
Signed-off-by: Song Liu 
Reviewed-by: Christoph Hellwig 
Reviewed-by: Hannes Reinecke 
Link: https://lore.kernel.org/r/20231214222107.2016042-2-song@kernel.org

dm audit: fix Kconfig so DM_AUDIT depends on BLK_DEV_DM

2023-12-18T18:11:05+00:00

Signed-off-by: Mike Snitzer

fs: add CONFIG_BUFFER_HEAD

2023-08-02T15:13:09+00:00

Add a new config option that controls building the buffer_head code, and
select it from all file systems and stacking drivers that need it.

For the block device nodes and alternative iomap based buffered I/O path
is provided when buffer_head support is not enabled, and iomap needs a
a small tweak to define the IOMAP_F_BUFFER_HEAD flag to 0 to not call
into the buffer_head code when it doesn't exist.

Otherwise this is just Kconfig and ifdef changes.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Luis Chamberlain 
Reviewed-by: Johannes Thumshirn 
Link: https://lore.kernel.org/r/20230801172201.1923299-7-hch@lst.de
Signed-off-by: Jens Axboe

md: deprecate bitmap file support

2023-07-27T07:13:29+00:00

The support for bitmaps on files is a very bad idea abusing various kernel
APIs, and fundamentally requires the file to not be on the actual array
without a way to check that this is actually the case.  Add a deprecation
warning to see if we might be able to eventually drop it.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Himanshu Madhani 
Signed-off-by: Song Liu 
Link: https://lore.kernel.org/r/20230615064840.629492-12-hch@lst.de

md: make bitmap file support optional

2023-07-27T07:13:29+00:00

The support for write intent bitmaps in files on an external files in md
is a hot mess that abuses ->bmap to map file offsets into physical device
objects, and also abuses buffer_heads in a creative way.

Make this code optional so that MD can be built into future kernels
without buffer_head support, and so that we can eventually deprecate it.

Note this does not affect the internal bitmap support, which has none of
the problems.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Himanshu Madhani 
Signed-off-by: Song Liu 
Link: https://lore.kernel.org/r/20230615064840.629492-11-hch@lst.de

Merge branch 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md into block-6.3

2023-03-15T18:18:07+00:00

Pull MD fixes from Song:

"This set contains two fixes for old issues (by Neil) and one fix
 for 6.3 (by Xiao)."

* 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md:
  md: select BLOCK_LEGACY_AUTOLOAD
  md: avoid signed overflow in slot_store()
  md: Free resources in __md_stop

md: select BLOCK_LEGACY_AUTOLOAD

2023-03-15T18:12:14+00:00

When BLOCK_LEGACY_AUTOLOAD is not enable, mdadm is not able to
activate new arrays unless "CREATE names=yes" appears in
mdadm.conf

As this is a regression we need to always enable BLOCK_LEGACY_AUTOLOAD
for when MD is selected - at least until mdadm is updated and the
updates widely available.

Cc: stable@vger.kernel.org # v5.18+
Fixes: fbdee71bb5d8 ("block: deprecate autoloading based on dev_t")
Signed-off-by: NeilBrown 
Signed-off-by: Song Liu