diff options
Diffstat (limited to 'fs/bcachefs/bcachefs_format.h')
| -rw-r--r-- | fs/bcachefs/bcachefs_format.h | 37 |
1 files changed, 33 insertions, 4 deletions
diff --git a/fs/bcachefs/bcachefs_format.h b/fs/bcachefs/bcachefs_format.h index a8f59522e258..b2de993d802b 100644 --- a/fs/bcachefs/bcachefs_format.h +++ b/fs/bcachefs/bcachefs_format.h @@ -706,7 +706,8 @@ struct bch_sb_field_ext { x(snapshot_deletion_v2, BCH_VERSION(1, 26)) \ x(fast_device_removal, BCH_VERSION(1, 27)) \ x(inode_has_case_insensitive, BCH_VERSION(1, 28)) \ - x(extent_snapshot_whiteouts, BCH_VERSION(1, 29)) + x(extent_snapshot_whiteouts, BCH_VERSION(1, 29)) \ + x(31bit_dirent_offset, BCH_VERSION(1, 30)) enum bcachefs_metadata_version { bcachefs_metadata_version_min = 9, @@ -1378,7 +1379,8 @@ enum btree_id_flags { BIT_ULL(KEY_TYPE_alloc_v4)) \ x(quotas, 5, 0, \ BIT_ULL(KEY_TYPE_quota)) \ - x(stripes, 6, 0, \ + x(stripes, 6, \ + BTREE_IS_data, \ BIT_ULL(KEY_TYPE_stripe)) \ x(reflink, 7, \ BTREE_IS_extents| \ @@ -1438,9 +1440,9 @@ enum btree_id { */ #define BTREE_ID_NR_MAX 63 -static inline bool btree_id_is_alloc(enum btree_id id) +static inline bool btree_id_is_alloc(enum btree_id btree) { - switch (id) { + switch (btree) { case BTREE_ID_alloc: case BTREE_ID_backpointers: case BTREE_ID_need_discard: @@ -1454,6 +1456,33 @@ static inline bool btree_id_is_alloc(enum btree_id id) } } +/* We can reconstruct these btrees from information in other btrees */ +static inline bool btree_id_can_reconstruct(enum btree_id btree) +{ + if (btree_id_is_alloc(btree)) + return true; + + switch (btree) { + case BTREE_ID_snapshot_trees: + case BTREE_ID_deleted_inodes: + case BTREE_ID_rebalance_work: + case BTREE_ID_subvolume_children: + return true; + default: + return false; + } +} + +/* + * We can reconstruct BTREE_ID_alloc, but reconstucting it from scratch is not + * so cheap and OOMs on huge filesystems (until we have online + * check_allocations) + */ +static inline bool btree_id_recovers_from_scan(enum btree_id btree) +{ + return btree == BTREE_ID_alloc || !btree_id_can_reconstruct(btree); +} + #define BTREE_MAX_DEPTH 4U /* Btree nodes */ |