wireguard-linux/fs/bcachefs/btree_node_scan.c, branch jd/bump-compilers

bcachefs: Make bkey_fsck_err() a wrapper around fsck_err()

2024-08-14T03:00:50Z

bkey_fsck_err() was added as an interface that looks like fsck_err(), but previously all it did was ensure that the appropriate error counter was incremented in the superblock. This is a cleanup and bugfix patch that converts it to a wrapper around fsck_err(). This is needed to fix an issue with the upgrade path to disk_accounting_v3, where the "silent fix" error list now includes bkey_fsck errors; fsck_err() handles this in a unified way, and since we need to change printing of bkey fsck errors from the caller to the inner bkey_fsck_err() calls, this ends up being a pretty big change. Als,, rename .invalid() methods to .validate(), for clarity, while we're changing the function signature anyways (to drop the printbuf argument). Signed-off-by: Kent Overstreet

bcachefs: btree node scan: fall back to comparing by journal seq

2024-07-14T23:00:16Z

highly damaged filesystems, or filesystems that have been damaged and repair and damaged again, may have sequence numbers we can't fully trust - which in itself is something we need to debug. Add a journal_seq fallback so that repair doesn't get stuck. Signed-off-by: Kent Overstreet

bcachefs: Fix incorrect error handling found_btree_node_is_readable()

2024-06-10T17:17:15Z

error handling here is slightly odd, which is why we were accidently calling evict() on an error pointer Signed-off-by: Kent Overstreet

bcachefs: btree node scan now fills in sectors_written

2024-04-29T01:34:29Z

Signed-off-by: Kent Overstreet

bcachefs: node scan: ignore multiple nodes with same seq if interior

2024-04-16T23:14:00Z

Interior nodes are not really needed, when we have to scan - but if this pops up for leaf nodes we'll need a real heuristic. Signed-off-by: Kent Overstreet

bcachefs: bch_member.btree_allocated_bitmap

2024-04-15T00:02:11Z

This adds a small (64 bit) per-device bitmap that tracks ranges that have btree nodes, for accelerating btree node scan if it is ever needed. - New helpers, bch2_dev_btree_bitmap_marked() and bch2_dev_bitmap_mark(), for checking and updating the bitmap - Interior btree update path updates the bitmaps when required - The check_allocations pass has a new fsck_err check, btree_bitmap_not_marked - New on disk format version, mi_btree_mitmap, which indicates the new bitmap is present - Upgrade table lists the required recovery pass and expected fsck error - Btree node scan uses the bitmap to skip ranges if we're on the new version Signed-off-by: Kent Overstreet

bcachefs: btree node scan: handle encrypted nodes

2024-04-14T02:48:16Z

Signed-off-by: Kent Overstreet

bcachefs: btree_node_scan: Respect member.data_allowed

2024-04-09T22:54:46Z

If a device wasn't used for btree nodes, no need to scan for them. Signed-off-by: Kent Overstreet

bcachefs: Don't scan for btree nodes when we can reconstruct

2024-04-09T04:53:14Z

Signed-off-by: Kent Overstreet

bcachefs: Repair pass for scanning for btree nodes

2024-04-03T18:44:18Z

If a btree root or interior btree node goes bad, we're going to lose a lot of data, unless we can recover the nodes that it pointed to by scanning. Fortunately btree node headers are fully self describing, and additionally the magic number is xored with the filesytem UUID, so we can do so safely. This implements the scanning - next patch will rework topology repair to make use of the found nodes. Signed-off-by: Kent Overstreet