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Message-ID: <cover.1770394394.git.dsterba@suse.com>
Date: Fri, 6 Feb 2026 18:32:12 +0100
From: David Sterba <dsterba@...e.com>
To: torvalds@...ux-foundation.org
Cc: David Sterba <dsterba@...e.com>,
linux-btrfs@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [GIT PULL] Btrfs updates for 6.20/7.0
Hi,
please pull the following btrfs updates. Thanks.
User visible changes, feature updates:
- when using block size > page size, enable direct IO
- fallback to buffered IO if the data profile has duplication,
workaround to avoid checksum mismatches on block group profiles with
redundancy, real direct IO is possible on single or RAID0
- redo export of zoned statistics, moved from sysfs to /proc/pid/mountstats
due to size limitations of the former
Experimental features:
- remove offload checksum tunable, intended to find best way to do it
but since we've switched to offload to thread for everything we don't
need it anymore
- initial support for remap-tree feature, a translation layer of logical
block addresses that allow changes without moving/rewriting blocks to
do eg. relocation, or other changes that require COW
Notable fixes:
- automatic removal of accidentally leftover chunks when free-space-tree
is enabled since mkfs.btrfs v6.16.1
- zoned mode
- do not try to append to conventional zones when RAID is mixing zoned
and conventional drives
- fixup write pointers when mixing zoned and conventional on DUP/RAID*
profiles
- when using squota, relax deletion rules for qgroups with 0 members to
allow easier recovery from accounting bugs, also add more checks to
detect bad accounting
- fix periodic reclaim scanning, properly check boundary conditions not
to trigger it unexpectedly or miss the time to run it
- trim
- continue after first error
- change reporting to the first detected error
- add more cancellation points
- reduce contention of big device lock that can block other operations
when there's lots of trimmed space
- when chunk allocation is forced (needs experimental build) fix
transaction abort when unexpected space layout is detected
Core:
- switch to crypto library API for checksumming, removed module
dependencies, pointer indirections, etc.
- error handling improvements
- adjust how and where transaction commit or abort are done and are
maybe not necessary
- minor compression optimization to skip single block ranges
- improve how compression folios are handled
- new and updated selftests
- cleanups, refactoring
- auto-freeing and other automatic variable cleanup conversion
- structure size optimizations
- condition annotations
----------------------------------------------------------------
The following changes since commit 18f7fcd5e69a04df57b563360b88be72471d6b62:
Linux 6.19-rc8 (2026-02-01 14:01:13 -0800)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git tags/for-6.20-tag
for you to fetch changes up to 161ab30da6899f31f8128cec7c833e99fa4d06d2:
btrfs: get rid of compressed_bio::compressed_folios[] (2026-02-03 07:59:07 +0100)
----------------------------------------------------------------
Boris Burkov (5):
btrfs: check squota parent usage on membership change
btrfs: relax squota parent qgroup deletion rule
btrfs: fix block_group_tree dirty_list corruption
btrfs: fix EEXIST abort due to non-consecutive gaps in chunk allocation
btrfs: tests: add unit tests for pending extent walking functions
David Sterba (9):
btrfs: merge setting ret and return ret
btrfs: simplify internal btrfs_printk helpers
btrfs: pass level to _btrfs_printk() to avoid parsing level from string
btrfs: remove ASSERT compatibility for gcc < 8.x
btrfs: split btrfs_fs_closing() and change return type to bool
btrfs: embed delayed root to struct btrfs_fs_info
btrfs: reorder members in btrfs_delayed_root for better packing
btrfs: don't use local variables for fs_info->delayed_root
btrfs: pass btrfs_fs_info to btrfs_first_delayed_node()
Eric Biggers (1):
btrfs: switch to library APIs for checksums
Filipe Manana (48):
btrfs: remove duplicated root key setup in btrfs_create_tree()
btrfs: update stale comment in __cow_file_range_inline()
btrfs: avoid transaction commit on error in del_balance_item()
btrfs: use single return variable in btrfs_find_orphan_roots()
btrfs: remove redundant path release in btrfs_find_orphan_roots()
btrfs: don't call btrfs_handle_fs_error() after failure to join transaction
btrfs: don't call btrfs_handle_fs_error() after failure to delete orphan item
btrfs: don't call btrfs_handle_fs_error() in qgroup_account_snapshot()
btrfs: don't call btrfs_handle_fs_error() in btrfs_commit_transaction()
btrfs: tag as unlikely error conditions in the transaction commit path
btrfs: move unlikely checks around btrfs_is_shutdown() into the helper
btrfs: avoid transaction commit on error in insert_balance_item()
btrfs: update comment for delalloc flush and oe wait in btrfs_clone_files()
btrfs: don't BUG() on unexpected delayed ref type in run_one_delayed_ref()
btrfs: remove unnecessary else branch in run_one_delayed_ref()
btrfs: tag as unlikely error handling in run_one_delayed_ref()
btrfs: add and use helper to compute the available space for a block group
btrfs: use the btrfs_block_group_end() helper everywhere
btrfs: use the btrfs_extent_map_end() helper everywhere
btrfs: make load_block_group_size_class() return void
btrfs: allocate path on stack in load_block_group_size_class()
btrfs: don't pass block group argument to load_block_group_size_class()
btrfs: assert block group is locked in btrfs_use_block_group_size_class()
btrfs: remove bogus root search condition in sample_block_group_extent_item()
btrfs: deal with missing root in sample_block_group_extent_item()
btrfs: unfold transaction aborts in btrfs_finish_one_ordered()
btrfs: qgroup: return correct error when deleting qgroup relation item
btrfs: remove pointless out labels from ioctl.c
btrfs: remove pointless out labels from send.c
btrfs: remove pointless out labels from qgroup.c
btrfs: remove pointless out labels from disk-io.c
btrfs: remove pointless out labels from extent-tree.c
btrfs: remove pointless out labels from free-space-cache.c
btrfs: remove pointless out labels from inode.c
btrfs: remove pointless out labels from uuid-tree.c
btrfs: remove out label in load_extent_tree_free()
btrfs: remove out_failed label in find_lock_delalloc_range()
btrfs: remove out label in btrfs_csum_file_blocks()
btrfs: remove out label in btrfs_mark_extent_written()
btrfs: remove out label in lzo_decompress()
btrfs: remove out label in scrub_find_fill_first_stripe()
btrfs: remove out label in finish_verity()
btrfs: remove out label in btrfs_check_rw_degradable()
btrfs: remove out label in btrfs_init_space_info()
btrfs: remove out label in btrfs_wait_for_commit()
btrfs: abort transaction on error in btrfs_remove_block_group()
btrfs: do not BUG_ON() in btrfs_remove_block_group()
btrfs: raid56: fix memory leak of btrfs_raid_bio::stripe_uptodate_bitmap
Johannes Thumshirn (10):
btrfs: zoned: don't zone append to conventional zone
btrfs: rename btrfs_create_block_group_cache to btrfs_create_block_group
btrfs: zoned: re-flow prepare_allocation_zoned()
btrfs: zoned: show statistics about zoned filesystems in mountstats
btrfs: move space_info_flag_to_str() to space-info.h
btrfs: zoned: print block-group type for zoned statistics
btrfs: remove bogus NULL checks in __btrfs_write_out_cache()
btrfs: don't pass io_ctl to __btrfs_write_out_cache()
btrfs: zoned: use local fs_info variable in btrfs_load_block_group_dup()
btrfs: fix copying the flags of btrfs_bio after split
Julia Lawall (1):
btrfs: update outdated comment in __add_block_group_free_space()
Mark Harmstone (17):
btrfs: add definitions and constants for remap-tree
btrfs: add METADATA_REMAP chunk type
btrfs: allow remapped chunks to have zero stripes
btrfs: remove remapped block groups from the free-space-tree
btrfs: don't add metadata items for the remap tree to the extent tree
btrfs: rename struct btrfs_block_group field commit_used to last_used
btrfs: add extended version of struct block_group_item
btrfs: allow mounting filesystems with remap-tree incompat flag
btrfs: redirect I/O for remapped block groups
btrfs: handle deletions from remapped block group
btrfs: handle setting up relocation of block group with remap-tree
btrfs: move existing remaps before relocating block group
btrfs: replace identity remaps with actual remaps when doing relocations
btrfs: add do_remap parameter to btrfs_discard_extent()
btrfs: allow balancing remap tree
btrfs: handle discarding fully-remapped block groups
btrfs: populate fully_remapped_bgs_list on mount
Massimiliano Pellizzer (1):
btrfs: remove dead assignment in prepare_one_folio()
Naohiro Aota (6):
btrfs: zoned: fixup last alloc pointer after extent removal for RAID1
btrfs: zoned: fixup last alloc pointer after extent removal for DUP
btrfs: zoned: fixup last alloc pointer after extent removal for RAID0/10
btrfs: tests: add cleanup functions for test specific functions
btrfs: add cleanup function for btrfs_free_chunk_map
btrfs: zoned: factor out the zone loading part into a testable function
Qu Wenruo (27):
btrfs: enable direct IO for bs > ps cases
btrfs: introduce BTRFS_PATH_AUTO_RELEASE() helper
btrfs: search for larger extent maps inside btrfs_do_readpage()
btrfs: concentrate the error handling of submit_one_sector()
btrfs: replace for_each_set_bit() with for_each_set_bitmap()
btrfs: shrink the size of btrfs_bio
btrfs: refactor the main loop of cow_file_range()
btrfs: add mount time auto fix for orphan fst entries
btrfs: reject single block sized compression early
btrfs: remove experimental offload csum mode
btrfs: shrink the size of btrfs_device
btrfs: lzo: use folio_iter to handle lzo_decompress_bio()
btrfs: zlib: use folio_iter to handle zlib_decompress_bio()
btrfs: zstd: use folio_iter to handle zstd_decompress_bio()
btrfs: fallback to buffered IO if the data profile has duplication
btrfs: tests: remove invalid file extent map tests
btrfs: tests: prepare extent map tests for strict alignment checks
btrfs: add strict extent map alignment checks
btrfs: lzo: introduce lzo_compress_bio() helper
btrfs: zstd: introduce zstd_compress_bio() helper
btrfs: zlib: introduce zlib_compress_bio() helper
btrfs: introduce btrfs_compress_bio() helper
btrfs: switch to btrfs_compress_bio() interface for compressed writes
btrfs: remove the old btrfs_compress_folios() infrastructure
btrfs: get rid of compressed_folios[] usage for compressed read
btrfs: get rid of compressed_folios[] usage for encoded writes
btrfs: get rid of compressed_bio::compressed_folios[]
Sun YangKai (5):
btrfs: update comment for visit_node_for_delete()
btrfs: use true/false for boolean parameters in btrfs_inc_ref()/btrfs_dec_ref()
btrfs: simplify boolean argument for btrfs_inc_ref()/btrfs_dec_ref()
btrfs: fix periodic reclaim condition
btrfs: consolidate reclaim readiness checks in btrfs_should_reclaim()
Zhen Ni (2):
btrfs: remove unreachable return after btrfs_backref_panic() in btrfs_backref_finish_upper_links()
btrfs: simplify check for zoned NODATASUM writes in btrfs_submit_chunk()
jinbaohong (5):
btrfs: use READA_FORWARD_ALWAYS for device extent verification
btrfs: continue trimming remaining devices on failure
btrfs: preserve first error in btrfs_trim_fs()
btrfs: handle user interrupt properly in btrfs_trim_fs()
btrfs: fix transaction commit blocking during trim of unallocated space
fs/btrfs/Kconfig | 13 +-
fs/btrfs/Makefile | 3 +-
fs/btrfs/accessors.h | 30 +
fs/btrfs/backref.c | 4 +-
fs/btrfs/bio.c | 35 +-
fs/btrfs/bio.h | 19 +-
fs/btrfs/block-group.c | 455 +++++---
fs/btrfs/block-group.h | 31 +-
fs/btrfs/block-rsv.c | 8 +
fs/btrfs/block-rsv.h | 1 +
fs/btrfs/compression.c | 217 ++--
fs/btrfs/compression.h | 40 +-
fs/btrfs/ctree.c | 49 +-
fs/btrfs/ctree.h | 9 +
fs/btrfs/defrag.c | 10 +-
fs/btrfs/delayed-inode.c | 53 +-
fs/btrfs/delayed-inode.h | 15 -
fs/btrfs/direct-io.c | 29 +-
fs/btrfs/discard.c | 52 +-
fs/btrfs/disk-io.c | 284 +++--
fs/btrfs/extent-io-tree.c | 7 +-
fs/btrfs/extent-tree.c | 457 ++++++--
fs/btrfs/extent-tree.h | 4 +-
fs/btrfs/extent_io.c | 77 +-
fs/btrfs/extent_map.c | 12 +
fs/btrfs/file-item.c | 20 +-
fs/btrfs/file.c | 60 +-
fs/btrfs/free-space-cache.c | 108 +-
fs/btrfs/free-space-cache.h | 1 +
fs/btrfs/free-space-tree.c | 150 ++-
fs/btrfs/free-space-tree.h | 6 +-
fs/btrfs/fs.c | 102 +-
fs/btrfs/fs.h | 79 +-
fs/btrfs/inode-item.c | 7 +-
fs/btrfs/inode.c | 599 ++++++-----
fs/btrfs/ioctl.c | 46 +-
fs/btrfs/locking.c | 1 +
fs/btrfs/lzo.c | 295 ++++--
fs/btrfs/messages.c | 26 +-
fs/btrfs/messages.h | 76 +-
fs/btrfs/qgroup.c | 125 ++-
fs/btrfs/raid56.c | 1 +
fs/btrfs/reflink.c | 11 +-
fs/btrfs/relocation.c | 1765 ++++++++++++++++++++++++++++++-
fs/btrfs/relocation.h | 17 +
fs/btrfs/root-tree.c | 47 +-
fs/btrfs/scrub.c | 56 +-
fs/btrfs/send.c | 76 +-
fs/btrfs/space-info.c | 73 +-
fs/btrfs/space-info.h | 16 +
fs/btrfs/super.c | 17 +-
fs/btrfs/sysfs.c | 55 +-
fs/btrfs/tests/btrfs-tests.c | 3 +
fs/btrfs/tests/btrfs-tests.h | 7 +
fs/btrfs/tests/chunk-allocation-tests.c | 476 +++++++++
fs/btrfs/tests/extent-map-tests.c | 16 +-
fs/btrfs/tests/free-space-tree-tests.c | 4 +-
fs/btrfs/tests/inode-tests.c | 126 +--
fs/btrfs/transaction.c | 78 +-
fs/btrfs/tree-checker.c | 84 +-
fs/btrfs/tree-checker.h | 5 +
fs/btrfs/tree-log.c | 2 +-
fs/btrfs/uuid-tree.c | 16 +-
fs/btrfs/verity.c | 13 +-
fs/btrfs/volumes.c | 631 ++++++++---
fs/btrfs/volumes.h | 57 +-
fs/btrfs/zlib.c | 97 +-
fs/btrfs/zoned.c | 398 +++++--
fs/btrfs/zoned.h | 17 +
fs/btrfs/zstd.c | 139 +--
include/uapi/linux/btrfs.h | 1 +
include/uapi/linux/btrfs_tree.h | 34 +-
72 files changed, 5871 insertions(+), 2082 deletions(-)
create mode 100644 fs/btrfs/tests/chunk-allocation-tests.c
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