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Message-ID: <22ib5scviwwa7bqeln22w2xm3dlywc4yuactrddhmsntixnghr@wjmmbpxjvipv>
Date: Mon, 28 Jul 2025 11:14:33 -0400
From: Kent Overstreet <kent.overstreet@...ux.dev>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-bcachefs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [GIT PULL] bcachefs changes for 6.17
Schedule notes for users:
I've been digging through the bug tracker and polling users to see what
bugs are still outstanding, and - it's not much.
So, the experimental label is coming off in 6.18.
As always, if you do hit a bug, please report it.
-------------------------------
The following changes since commit c37495fe3531647db4ae5787a80699ae1438d7cf:
bcachefs: Add missing snapshots_seen_add_inorder() (2025-07-24 22:56:37 -0400)
are available in the Git repository at:
git://evilpiepirate.org/bcachefs.git tags/bcachefs-2025-07-28
for you to fetch changes up to c0d938c16b674bfe9e710579344653b703b92a49:
bcachefs: Add missing error_throw to bch2_set_version_incompat() (2025-07-25 12:03:48 -0400)
----------------------------------------------------------------
bcachefs changes for 6.17-rc1
No noteworthy feature work: we're in hard freeze.
Lots of bugfixes. Assorted user visible changes and fixes:
- Fix a major performance bug when deleting many files: this was caused
by the key cache caching keys that had been deleted, causing certain
lookups in the inode triggers to scan excessively.
- The "io_read_nopromote" counter has been broken out into sub-counters;
these can be seen with 'bcachefs fs top' on a recent bcachefs-tools.
This helps when diagnosing why reads aren't coming from the cache.
- Congestion tracking is now a bit less aggressive (this controls when
we decide to do a promote); this area still needs more work.
- Metadata writes are no longer throttled by writeback throttling
- Nocow writes can now be rebalanced (e.g. background_target,
background_compression options)
- (Almost) all recovery passes now have progress indicators.
- Repair improvements: we'll now reconstruct missing inodes if we find
contents for that inode (more than one or two keys), not just if the
inodes btree was damaged: similarly for 'dirent to missing inode'.
- Btree node tracepoint improvements: they've been converted to more
modern printbuf tracepoints, and include significantly more info.
- Fix in-memory accounting going out of sync with the accounting btree
when doing accounting updates before going RW.
- BCH_MIN_NR_BUCKETS (minimum number of buckets per device) has been
increased from 64 to 512. In the unlikely event that anyone anyone
actually was using bcachefs on sub 128M filesystems and doesn't want
to lose access (modern tools will format these small filesystems with
a more appropriate bucket size), please file a report or contact me.
(This was just a syzbot issue, so far as I know).
- CLASS()/guard() conversion: a great deal of code has been converted to
the new __cleanup based resource handling, and away from 'goto err'
cleanup.
----------------------------------------------------------------
Alan Huang (5):
bcachefs: Don't memcpy more than needed
bcachefs: Refactor trans->mem allocation
bcachefs: Shut up clang warning
bcachefs: Don't lock exec_update_lock
bcachefs: Use user_backed_iter instead of iter_is_iovec
Anindya Sundar Gayen (1):
bcachefs: remove extraneous ; after statements
George Hu (1):
bcachefs: use union for bch_compression_opt to make encode & decode easier
Kent Overstreet (193):
bcachefs: Fix UAF by journal write path
bcachefs: async_objs: update iter pos after obj printed
bcachefs: fsck: dir_loop, subvol_loop now autofix
bcachefs: kill darray_u32_has()
bcachefs: Reduce __bch2_btree_node_alloc() stack usage
bcachefs: Allow CONFIG_UNICODE=m
bcachefs: use scoped_guard() in fast_list.c
bcachefs: DEFINE_CLASS()es for dev refcounts
bcachefs: More errcode conversions
bcachefs: add an unlikely() to trans_begin()
bcachefs: Plumb trans_kmalloc ip to trans_log_msg
bcachefs: Don't log error twice in allocator async repair
bcachefs: bch2_trans_has_updates()
bcachefs: Improve inode deletion
bcachefs: Don't peek key cache unless we have a real key
bcachefs: Evict/bypass key cache when deleting
bcachefs: -o fix_errors may now be used without -o fsck
bcachefs: Improved btree node tracepoints
bcachefs: Finish error_throw tracepoints
bcachefs: Improve inode_create behaviour on old filesystems
bcachefs: Before removing dangling dirents, check for contents
bcachefs: check_key_has_inode() reconstructs more aggressively
bcachefs: bch_fs.devs_removed
bcachefs: ptr_to_removed_device
bcachefs: bch2_journal_entry_missing_range()
bcachefs: Faster checking for missing journal entries
bcachefs: Add missing bch2_log_msg_start()
bcachefs: Print errcode when bch2_read_extent() sees error
bcachefs: Fix error message in buffered read path
bcachefs: Debug param for injecting btree node corruption on read
bcachefs: device add now properly sets c->online_devs
bcachefs: silence userspace build warning
bcachefs: Update path flags cleanups
bcachefs: add missing log message newline
bcachefs: add missing includes
bcachefs: silence userspace build warning
bcachefs: trace_data_update_done_no_rw_devs
bcachefs: use kvzalloc() for journal bios
bcachefs: Improve nopromote visibility
bcachefs: unsigned -> enum bch_trans_commit_flags
bcachefs: __bch2_btree_node_alloc() now respects target
bcachefs: bch2_btree_write_buffer_insert_checks()
bcachefs: don't call get_update_rebalance_opts() on btree ptrs
bcachefs: kill bch2_err_str() BUG_ON()
bcachefs: bch2_read_bio_to_text(): tabstops
bcachefs: kill __bch2_print_str()
bcachefs: bch_log()
bcachefs: c->loglevel
bcachefs: Zero list_idx when deleting from async obj lists
bcachefs: fix device add before fs started
bcachefs: fast_list: warn if non-empty on exit
bcachefs: bch2_journal_key_insert_take() accumulates accounting updates
bcachefs: bch2_fs_initialize() now runs journal replay
bcachefs: do_bch2_trans_commit_to_journal_replay handles accounting
bcachefs: bch2_set_nr_journal_buckets_iter() always marks
bcachefs: bch2_fs_initialize() initializes before going RW
bcachefs: Improve bch2_read_bio_to_text()
bcachefs: Fix replicas max options
bcachefs: Better congestion visibilty in sysfs
bcachefs: nopromote sub counters
bcachefs: make congestion tracking less aggressive
bcachefs: __bset_aux_tree_verify_ro()
bcachefs: Add missing bch2_bkey_set_needs_rebalance to nocow write path
bcachefs: delete useless null ptr check
bcachefs: Also create snapshots with CAP_FOWNER
bcachefs: Fix missing compat code in check_subvol()
bcachefs: Fix UAF in check_dirent()
bcachefs: Fix journal assertion
bcachefs: Fix __bch2_fs_read_write() error path
bcachefs: Give debugfs cached btree nodes better indentation
bcachefs: Silence clang warning about enum types
bcachefs: kill bkey_journal_seq()
bcachefs: don't pass bch_ioctl_data by value
bcachefs: better device too small error message
bcachefs: check_i_sectors now prints paths
bcachefs: simplify bch2_trans_do()
bcachefs: DEFINE_GUARD(printbuf_atomic)
bcachefs: convert super-io.c to CLASS/guards
bcachefs: convert super.c to CLASS/guards
bcachefs: convert acl.c to CLASS/guards
bcachefs: convert xattr.c to CLASS/guards
bcachefs: convert thread_with_file.c to CLASS/guards
bcachefs: convert unit tests to CLASS/guards
bcachefs: convert util.[ch] to CLASS/guards
bcachefs: convert six.c to guards
bcachefs: convert progress.c to guards
bcachefs: convert enumerated_ref.c to guards
bcachefs: convert opts.c to CLASS/guards
bcachefs: convert sysfs.c to CLASS/guards
bcachefs: convert buckets_waiting_for_journal.c to CLASS/guards
bcachefs: convert quota.c to CLASS/guards
bcachefs: convert sb-clean.c to CLASS/guards
bcachefs: convert sb-downgrade.c to CLASS/guards
bcachefs: convert sb-errors.c to CLASS/guards
bcachefs: convert sb-members.c to CLASS/guards
bcachefs: convert clock.c to CLASS/guards
bcachefs: convert debug.c to CLASS/guards
bcachefs: convert nocow_locking.c to CLASS/guards
bcachefs: convert replicas.c to CLASS/guards
bcachefs: convert bset.c to CLASS
bcachefs: convert bkey.c to CLASS
bcachefs: convert chardev.c to CLASS
bcachefs: convert fs-ioctl.c to CLASS/guards
bcachefs: convert disk_groups.c to guards
bcachefs: convert checksum.c to CLASS/guards
bcachefs: convert compress.c to guards
bcachefs: convert rebalance.c to CLASS/guards
bcachefs: convert migrate.c to CLASS/guards
bcachefs: convert move.c to CLASS/guards
bcachefs: convert movinggc.c to CLASS
bcachefs: convert data_update.c to CLASS/guards
bcachefs: convert reflink.c to CLASS/guards
bcachefs: convert snapshot.c to CLASS/guards
bcachefs: convert subvolume.c to CLASS/guards
bcachefs: convert str_hash.c to CLASS
bcachefs: convert recovery_passes.c to CLASS/guards
bcachefs: convert recovery.c to CLASS/guards
bcachefs: convert lru.c to CLASS
bcachefs: convert extents.c to guards
bcachefs: convert logged_ops.c to CLASS
bcachefs: convert inode.c to CLASS
bcachefs: convert dirent.c to CLASS
bcachefs: convert namei.c to CLASS
bcachefs: convert io_read.c to CLASS/guards
bcachefs: convert io_write.c to CLASS/guards
bcachefs: convert io_misc.c to CLASS/guards
bcachefs: convert fsck.c to CLASS/guards
bcachefs: convert disk_accounting.c to CLASS/guards
bcachefs: convert buckets.c to CLASS/guards
bcachefs: convert ec.c to CLASS/guards
bcachefs: convert backpointers.c to CLASS/guards
bcachefs: convert alloc_background.c to CLASS/guards
bcachefs: convert alloc_foreground.c to CLASS/guards
bcachefs: convert fs.c to CLASS/guards
bcachefs: convert fs-io.c to CLASS/guards
bcachefs: convert fs-io-pagecache.c to CLASS/guards
bcachefs: convert fs-io-buffered.c to CLASS/guards
bcachefs: convert fs-io-direct.c to CLASS/guards
bcachefs: convert btree_node_scan.c to CLASS/guards
bcachefs: convert journal.c to CLASS/guards
bcachefs: convert journal_io.c to CLASS/guards
bcachefs: convert journal_reclaim.c to CLASS/guards
bcachefs: convert journal_seq_blacklist.c to CLASS/guards
bcachefs: convert btree_cache.c to CLASS/guards
bcachefs: convert btree_gc.c to CLASS/guards
bcachefs: convert btree_write_buffer.c to CLASS/guards
bcachefs: convert btree_update.c to CLASS/guards
bcachefs: convert btree_update_interior.c to CLASS/guards
bcachefs: convert btree_trans_commit.c to CLASS/guards
bcachefs: convert btree_key_cache.c to CLASS/guards
bcachefs: convert btree_io.c to CLASS/guards
bcachefs: convert btree_iter.c to CLASS/guards
bcachefs: convert btree_locking.c to CLASS/guards
bcachefs: convert btree_journal_iter.c to CLASS/guards
bcachefs: bch2_run_recovery_pass() now prints errors
bcachefs: convert error.c to CLASS/guards
bcachefs: Fix padding zeroout when creating casefolded dirents
bcachefs: Don't call bch2_recovery_pass_want_ratelimit without sb_lock
bcachefs: Tell wbt throttling not to throttle metadata writes
bcachefs: Kill redundant write_super() when running recovery passes
bcachefs: Add comment to journal_flush_done()
bcachefs: Don't emit empty journal entry for accounting
bcachefs: sysfs trigger_btree_write_buffer_flush
closures: Improve warnings on bad put
bcachefs: Fix unhandled key type in fiemap_fill_extent
bcachefs: Ensure we don't return with closure on waitlist
bcachefs: bch2_move_data() now walks btree nodes
bcachefs: rereplicate flushes interior updates
bcachefs: can_use_btree_node()
bcachefs: Fix error handling in btree_iter_peek_slot
bcachefs: fix assert in bch2_btree_path_traverse_cached()
bcachefs: Fix allocate_dropping_locks() usage
bcachefs: log devices we're scanning in btree node scan
bcachefs: Fix refs to undefined fields in __bch2_alloc_v4_to_text()
bcachefs: fix check_extent_overbig() call
bcachefs: Convert topology repair errs to standard error codes
bcachefs: Fix __bch2_alloc_to_v4 copy
bcachefs: Flush btree_interior_update_work before freeing fs
bcachefs: Only track read latency for congestion tracking
bcachefs: Clean up btree_node_read_work() error handling
bcachefs: Ensure pick_read_device() returns error for btree pointers
bcachefs: btree_lost_data: mark a few more errors for silent fixing
bcachefs: Don't allow mounting with crazy numbers of dirty journal entries
bcachefs: Add pass_done to recovery_pass_status_to_text()
bcachefs: Increase BCH_MIN_NR_NBUCKETS
bcachefs: Hook up progress indicators for most recovery passes
bcachefs: recovery_pass_will_run()
bcachefs: journal_entry_btree_keys_to_text() is more careful
bcachefs: dirent_to_text() now uses prt_bytes()
bcachefs: Add missing ei_last_dirtied update
bcachefs: snapshots: pass snapshot_table where appropriate
bcachefs: live_child() no longer uses recursion
bcachefs: Add missing error_throw to bch2_set_version_incompat()
Nikita Ofitserov (1):
bcachefs: Suppress unnecessary inode_i_sectors_wrong fsck error
Youling Tang (2):
bcachefs: Simplify bch2_bio_map()
bcachefs: Use bio_add_folio_nofail() for unfailable operations
fs/bcachefs/acl.c | 19 +-
fs/bcachefs/alloc_background.c | 300 +++++++---------
fs/bcachefs/alloc_background.h | 9 +-
fs/bcachefs/alloc_foreground.c | 209 +++++------
fs/bcachefs/alloc_foreground.h | 9 +-
fs/bcachefs/async_objs.c | 29 +-
fs/bcachefs/async_objs.h | 7 +-
fs/bcachefs/async_objs_types.h | 2 +-
fs/bcachefs/backpointers.c | 63 ++--
fs/bcachefs/bcachefs.h | 72 ++--
fs/bcachefs/bkey.c | 4 +-
fs/bcachefs/bset.c | 74 ++--
fs/bcachefs/btree_cache.c | 38 +-
fs/bcachefs/btree_cache.h | 11 +
fs/bcachefs/btree_gc.c | 122 +++----
fs/bcachefs/btree_io.c | 119 ++++---
fs/bcachefs/btree_iter.c | 129 ++++---
fs/bcachefs/btree_iter.h | 22 +-
fs/bcachefs/btree_journal_iter.c | 20 +-
fs/bcachefs/btree_key_cache.c | 16 +-
fs/bcachefs/btree_locking.c | 17 +-
fs/bcachefs/btree_node_scan.c | 32 +-
fs/bcachefs/btree_trans_commit.c | 121 ++++---
fs/bcachefs/btree_types.h | 22 +-
fs/bcachefs/btree_update.c | 171 +++++----
fs/bcachefs/btree_update.h | 79 +++--
fs/bcachefs/btree_update_interior.c | 335 +++++++++---------
fs/bcachefs/btree_update_interior.h | 12 +-
fs/bcachefs/btree_write_buffer.c | 45 ++-
fs/bcachefs/btree_write_buffer.h | 6 +-
fs/bcachefs/buckets.c | 212 +++++------
fs/bcachefs/buckets_waiting_for_journal.c | 30 +-
fs/bcachefs/chardev.c | 120 ++-----
fs/bcachefs/checksum.c | 54 ++-
fs/bcachefs/clock.c | 17 +-
fs/bcachefs/compress.c | 29 +-
fs/bcachefs/compress.h | 36 +-
fs/bcachefs/data_update.c | 33 +-
fs/bcachefs/debug.c | 92 +++--
fs/bcachefs/dirent.c | 42 +--
fs/bcachefs/dirent.h | 4 +-
fs/bcachefs/disk_accounting.c | 266 +++++++-------
fs/bcachefs/disk_accounting.h | 9 +-
fs/bcachefs/disk_groups.c | 27 +-
fs/bcachefs/ec.c | 239 +++++--------
fs/bcachefs/ec.h | 2 +-
fs/bcachefs/enumerated_ref.c | 4 +-
fs/bcachefs/errcode.c | 3 +-
fs/bcachefs/errcode.h | 13 +
fs/bcachefs/error.c | 65 ++--
fs/bcachefs/extents.c | 38 +-
fs/bcachefs/extents.h | 3 +
fs/bcachefs/fast_list.c | 32 +-
fs/bcachefs/fast_list.h | 2 +-
fs/bcachefs/fs-io-buffered.c | 79 ++---
fs/bcachefs/fs-io-direct.c | 11 +-
fs/bcachefs/fs-io-pagecache.c | 55 ++-
fs/bcachefs/fs-io.c | 127 ++++---
fs/bcachefs/fs-io.h | 19 +-
fs/bcachefs/fs-ioctl.c | 33 +-
fs/bcachefs/fs.c | 192 +++++-----
fs/bcachefs/fsck.c | 427 ++++++++++++----------
fs/bcachefs/inode.c | 101 +++---
fs/bcachefs/io_misc.c | 36 +-
fs/bcachefs/io_read.c | 157 +++++---
fs/bcachefs/io_read.h | 20 +-
fs/bcachefs/io_write.c | 46 +--
fs/bcachefs/journal.c | 253 ++++++-------
fs/bcachefs/journal.h | 3 +-
fs/bcachefs/journal_io.c | 248 ++++++-------
fs/bcachefs/journal_io.h | 7 +
fs/bcachefs/journal_reclaim.c | 220 ++++++------
fs/bcachefs/journal_seq_blacklist.c | 56 ++-
fs/bcachefs/journal_seq_blacklist.h | 3 +
fs/bcachefs/logged_ops.c | 14 +-
fs/bcachefs/lru.c | 24 +-
fs/bcachefs/migrate.c | 21 +-
fs/bcachefs/move.c | 218 +++++-------
fs/bcachefs/move.h | 14 +-
fs/bcachefs/movinggc.c | 6 +-
fs/bcachefs/namei.c | 26 +-
fs/bcachefs/nocow_locking.c | 10 +-
fs/bcachefs/opts.c | 33 +-
fs/bcachefs/opts.h | 8 +-
fs/bcachefs/printbuf.h | 4 +
fs/bcachefs/progress.c | 6 +-
fs/bcachefs/progress.h | 3 +
fs/bcachefs/quota.c | 96 ++---
fs/bcachefs/rebalance.c | 57 ++-
fs/bcachefs/recovery.c | 213 +++++------
fs/bcachefs/recovery_passes.c | 68 ++--
fs/bcachefs/recovery_passes.h | 9 +-
fs/bcachefs/reflink.c | 63 ++--
fs/bcachefs/replicas.c | 147 ++++----
fs/bcachefs/sb-clean.c | 36 +-
fs/bcachefs/sb-counters_format.h | 6 +
fs/bcachefs/sb-downgrade.c | 19 +-
fs/bcachefs/sb-errors.c | 45 +--
fs/bcachefs/sb-errors_format.h | 9 +-
fs/bcachefs/sb-members.c | 48 ++-
fs/bcachefs/sb-members.h | 19 +-
fs/bcachefs/sb-members_format.h | 2 +-
fs/bcachefs/six.c | 21 +-
fs/bcachefs/snapshot.c | 179 ++++------
fs/bcachefs/snapshot.h | 32 +-
fs/bcachefs/snapshot_types.h | 2 +-
fs/bcachefs/str_hash.c | 23 +-
fs/bcachefs/str_hash.h | 4 +-
fs/bcachefs/subvolume.c | 106 +++---
fs/bcachefs/super-io.c | 81 ++---
fs/bcachefs/super.c | 570 ++++++++++++++----------------
fs/bcachefs/sysfs.c | 28 +-
fs/bcachefs/tests.c | 198 +++++------
fs/bcachefs/thread_with_file.c | 52 +--
fs/bcachefs/time_stats.c | 7 +-
fs/bcachefs/trace.h | 152 ++------
fs/bcachefs/util.c | 28 +-
fs/bcachefs/util.h | 10 +-
fs/bcachefs/xattr.c | 52 ++-
lib/closure.c | 12 +-
120 files changed, 3972 insertions(+), 4388 deletions(-)
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