kernel.git/fs/bcachefs/btree_node_scan.c, branch linux-6.15.y

bcachefs: Use sort_nonatomic() instead of sort()

2025-04-06T23:33:53Z

Fixes "task out to lunch" warnings during recovery on large machines with lots of dirty data in the journal. Signed-off-by: Kent Overstreet

bcachefs: use library APIs for ChaCha20 and Poly1305

2025-04-06T23:33:53Z

Just use the ChaCha20 and Poly1305 libraries instead of the clunky crypto API. This is much simpler. It is also slightly faster, since the libraries provide more direct access to the same architecture-optimized ChaCha20 and Poly1305 code. I've tested that existing encrypted bcachefs filesystems can be continue to be accessed with this patch applied. Reviewed-by: Ard Biesheuvel Signed-off-by: Eric Biggers Signed-off-by: Kent Overstreet

bcachefs: Split up bch_dev.io_ref

2025-04-02T14:24:34Z

We now have separate per device io_refs for read and write access. This fixes a device removal bug where the discard workers were still running while we're removing alloc info for that device. It's also a bit of hardening; we no longer allow writes to devices that are read-only. Signed-off-by: Kent Overstreet

bcachefs: Better printing of inconsistency errors

2025-03-29T17:26:13Z

Build up and emit the error message for an inconsistency error all at once, instead of spread over multiple printk calls, so they're not jumbled in the dmesg log. Also, add better indenting. Signed-off-by: Kent Overstreet

bcachefs: Fix 'hung task' messages in btree node scan

2025-03-26T20:26:35Z

btree node scan has to wait on kthread workers that scan each device, potentially for awhile. We would like this to be interruptible, but we may need a different mechanism than signals for that - we've had bugs in the past where mounts were failing due to checking for signals, and no explanation on where they came from. Signed-off-by: Kent Overstreet

bcachefs: Fix btree_node_scan io_ref handling

2025-03-15T01:02:16Z

This was completely fubar; it's now simplified a bit as well. Note that for_each_online_member() takes and releases io_refs as it iterates, so we need to release that if we break. Signed-off-by: Kent Overstreet

bcachefs: Finish bch2_account_io_completion() conversions

2025-03-15T01:02:16Z

More prep work for automatically kicking devices out after too many IO errors. Signed-off-by: Kent Overstreet

bcachefs: Use a heap for handling overwrites in btree node scan

2024-12-21T06:36:22Z

Fix an O(n^2) issue when we find many overlapping (overwritten) btree nodes - especially when one node overwrites many smaller nodes. This was discovered to be an issue with the bcachefs merge_torture_flakey test - if we had a large btree that was then emptied, the number of difficult overwrites can be unbounded. Cc: Kuan-Wei Chiu Signed-off-by: Kent Overstreet

bcachefs: struct bkey_validate_context

2024-12-21T06:36:20Z

Add a new parameter to bkey validate functions, and use it to improve invalid bkey error messages: we can now print the btree and depth it came from, or if it came from the journal, or is a btree root. Signed-off-by: Kent Overstreet

bcachefs: Don't try to en/decrypt when encryption not available

2024-12-21T06:36:20Z

If a btree node says it's encrypted, but the superblock never had an encryptino key - whoops, that needs to be handled. Reported-by: syzbot+026f1857b12f5eb3f9e9@syzkaller.appspotmail.com Signed-off-by: Kent Overstreet