kernel/git/stable/linux.git/fs/bcachefs/io_misc.c, branch master

Remove bcachefs core code

2025-09-29T20:43:52+00:00

bcachefs was marked 'externally maintained' in 6.17 but the code remained to make the transition smoother. It's now a DKMS module, making the in-kernel code stale, so remove it to avoid any version confusion. Link: https://lore.kernel.org/linux-bcachefs/yokpt2d2g2lluyomtqrdvmkl3amv3kgnipmenobkpgx537kay7@xgcgjviv3n7x/T/ Signed-off-by: Linus Torvalds

bcachefs: bch2_fpunch_snapshot()

2025-07-04T19:45:22+00:00

Add a new version of fpunch for operating on a snapshot ID, not a subvolume - and use it for "extent past end of inode" repair. Previously, repair would try to delete everything at once, but deleting too many extents at once can overflow the btree_trans bump allocator, as well as causing other problems - the new helper properly uses bch2_extent_trim_atomic(). Reported-and-tested-by: Edoardo Codeglia Signed-off-by: Kent Overstreet

bcachefs: bch_err_throw()

2025-06-02T16:16:35+00:00

Add a tracepoint for any time we return an error and unwind. Signed-off-by: Kent Overstreet

bcachefs: Kill btree_iter.trans

2025-04-02T14:24:34+00:00

This was planned to be done ages ago, now finally completed; there are places where we have quite a few btree_trans objects on the stack, so this reduces stack usage somewhat. Signed-off-by: Kent Overstreet

bcachefs: bch2_inum_offset_err_msg_trans() no longer handles transaction restarts

2025-03-15T01:02:12+00:00

we're starting to use error messages with paths in fsck_errors(), where we do not want nested transaction restart handling, so let's prepare for that. Signed-off-by: Kent Overstreet

bcachefs: bch2_inum_to_path()

2024-12-21T06:36:21+00:00

Add a function for walking backpointers to find a path from a given inode number, and convert various error messages to use it. Signed-off-by: Kent Overstreet

bcachefs: Implement bch2_btree_iter_prev_min()

2024-12-21T06:36:18+00:00

A user contributed a filessytem dump, where the dump was actually corrupted (due to being taken while the filesystem was online), but which exposed an interesting bug in fsck - reconstruct_inode(). When itearting in BTREE_ITER_filter_snapshots mode, it's required to give an end position for the iteration and it can't span inode numbers; continuing into the next inode might mean we start seeing keys from a different snapshot tree, that the is_ancestor() checks always filter, thus we're never able to return a key and stop iterating. Backwards iteration never implemented the end position because nothing else needed it - except for reconstuct_inode(). Additionally, backwards iteration is now able to overlay keys from the journal, which will be useful if we ever decide to start doing journal replay in the background. Signed-off-by: Kent Overstreet

bcachefs: Rename btree_iter_peek_upto() -> btree_iter_peek_max()

2024-12-21T06:36:17+00:00

We'll be introducing btree_iter_peek_prev_min(), so rename for consistency. Signed-off-by: Kent Overstreet

bcachefs: io_opts_to_rebalance_opts()

2024-12-21T06:36:16+00:00

New helper to simplify bch2_bkey_set_needs_rebalance() Signed-off-by: Kent Overstreet

bcachefs: fix restart handling in __bch2_resume_logged_op_finsert()

2024-10-18T04:49:48+00:00

Signed-off-by: Kent Overstreet