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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-04-13 01:45:47 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-04-15 03:02:11 +0300 |
| commit | 27c15ed297cb71c2e7a839439b5a097081a32605 (patch) | |
| tree | 5c17bdfe3f11e178ffda3e2415d21a23b89b723c /fs/bcachefs/sb-downgrade.c | |
| parent | bdae2a7e6020e1cf864a30dab2af323575569dc7 (diff) | |
| download | linux-27c15ed297cb71c2e7a839439b5a097081a32605.tar.xz | |
bcachefs: bch_member.btree_allocated_bitmap
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 <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/sb-downgrade.c')
| -rw-r--r-- | fs/bcachefs/sb-downgrade.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/bcachefs/sb-downgrade.c b/fs/bcachefs/sb-downgrade.c index d6f81179c3a2..a98ef940b7a3 100644 --- a/fs/bcachefs/sb-downgrade.c +++ b/fs/bcachefs/sb-downgrade.c @@ -51,7 +51,10 @@ BCH_FSCK_ERR_subvol_fs_path_parent_wrong) \ x(btree_subvolume_children, \ BIT_ULL(BCH_RECOVERY_PASS_check_subvols), \ - BCH_FSCK_ERR_subvol_children_not_set) + BCH_FSCK_ERR_subvol_children_not_set) \ + x(mi_btree_bitmap, \ + BIT_ULL(BCH_RECOVERY_PASS_check_allocations), \ + BCH_FSCK_ERR_btree_bitmap_not_marked) #define DOWNGRADE_TABLE() |