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Diffstat (limited to 'fs/bcachefs/snapshot.c')
-rw-r--r--fs/bcachefs/snapshot.c72
1 files changed, 40 insertions, 32 deletions
diff --git a/fs/bcachefs/snapshot.c b/fs/bcachefs/snapshot.c
index 0e806f04f3d7..629900a5e641 100644
--- a/fs/bcachefs/snapshot.c
+++ b/fs/bcachefs/snapshot.c
@@ -32,7 +32,7 @@ void bch2_snapshot_tree_to_text(struct printbuf *out, struct bch_fs *c,
}
int bch2_snapshot_tree_invalid(struct bch_fs *c, struct bkey_s_c k,
- enum bkey_invalid_flags flags,
+ enum bch_validate_flags flags,
struct printbuf *err)
{
int ret = 0;
@@ -49,7 +49,7 @@ int bch2_snapshot_tree_lookup(struct btree_trans *trans, u32 id,
struct bch_snapshot_tree *s)
{
int ret = bch2_bkey_get_val_typed(trans, BTREE_ID_snapshot_trees, POS(0, id),
- BTREE_ITER_WITH_UPDATES, snapshot_tree, s);
+ BTREE_ITER_with_updates, snapshot_tree, s);
if (bch2_err_matches(ret, ENOENT))
ret = -BCH_ERR_ENOENT_snapshot_tree;
@@ -125,6 +125,15 @@ static inline u32 get_ancestor_below(struct snapshot_table *t, u32 id, u32 ances
return s->parent;
}
+static bool test_ancestor_bitmap(struct snapshot_table *t, u32 id, u32 ancestor)
+{
+ const struct snapshot_t *s = __snapshot_t(t, id);
+ if (!s)
+ return false;
+
+ return test_bit(ancestor - id - 1, s->is_ancestor);
+}
+
bool __bch2_snapshot_is_ancestor(struct bch_fs *c, u32 id, u32 ancestor)
{
bool ret;
@@ -140,13 +149,11 @@ bool __bch2_snapshot_is_ancestor(struct bch_fs *c, u32 id, u32 ancestor)
while (id && id < ancestor - IS_ANCESTOR_BITMAP)
id = get_ancestor_below(t, id, ancestor);
- if (id && id < ancestor) {
- ret = test_bit(ancestor - id - 1, __snapshot_t(t, id)->is_ancestor);
+ ret = id && id < ancestor
+ ? test_ancestor_bitmap(t, id, ancestor)
+ : id == ancestor;
- EBUG_ON(ret != __bch2_snapshot_is_ancestor_early(t, id, ancestor));
- } else {
- ret = id == ancestor;
- }
+ EBUG_ON(ret != __bch2_snapshot_is_ancestor_early(t, id, ancestor));
out:
rcu_read_unlock();
@@ -216,7 +223,7 @@ void bch2_snapshot_to_text(struct printbuf *out, struct bch_fs *c,
}
int bch2_snapshot_invalid(struct bch_fs *c, struct bkey_s_c k,
- enum bkey_invalid_flags flags,
+ enum bch_validate_flags flags,
struct printbuf *err)
{
struct bkey_s_c_snapshot s;
@@ -291,7 +298,7 @@ static void set_is_ancestor_bitmap(struct bch_fs *c, u32 id)
static int __bch2_mark_snapshot(struct btree_trans *trans,
enum btree_id btree, unsigned level,
struct bkey_s_c old, struct bkey_s_c new,
- unsigned flags)
+ enum btree_iter_update_trigger_flags flags)
{
struct bch_fs *c = trans->c;
struct snapshot_t *t;
@@ -345,7 +352,7 @@ err:
int bch2_mark_snapshot(struct btree_trans *trans,
enum btree_id btree, unsigned level,
struct bkey_s_c old, struct bkey_s new,
- unsigned flags)
+ enum btree_iter_update_trigger_flags flags)
{
return __bch2_mark_snapshot(trans, btree, level, old, new.s_c, flags);
}
@@ -354,7 +361,7 @@ int bch2_snapshot_lookup(struct btree_trans *trans, u32 id,
struct bch_snapshot *s)
{
return bch2_bkey_get_val_typed(trans, BTREE_ID_snapshots, POS(0, id),
- BTREE_ITER_WITH_UPDATES, snapshot, s);
+ BTREE_ITER_with_updates, snapshot, s);
}
static int bch2_snapshot_live(struct btree_trans *trans, u32 id)
@@ -611,7 +618,7 @@ int bch2_check_snapshot_trees(struct bch_fs *c)
int ret = bch2_trans_run(c,
for_each_btree_key_commit(trans, iter,
BTREE_ID_snapshot_trees, POS_MIN,
- BTREE_ITER_PREFETCH, k,
+ BTREE_ITER_prefetch, k,
NULL, NULL, BCH_TRANS_COMMIT_no_enospc,
check_snapshot_tree(trans, &iter, k)));
bch_err_fn(c, ret);
@@ -688,7 +695,7 @@ static int snapshot_tree_ptr_repair(struct btree_trans *trans,
root = bch2_bkey_get_iter_typed(trans, &root_iter,
BTREE_ID_snapshots, POS(0, root_id),
- BTREE_ITER_WITH_UPDATES, snapshot);
+ BTREE_ITER_with_updates, snapshot);
ret = bkey_err(root);
if (ret)
goto err;
@@ -879,7 +886,7 @@ int bch2_check_snapshots(struct bch_fs *c)
int ret = bch2_trans_run(c,
for_each_btree_key_reverse_commit(trans, iter,
BTREE_ID_snapshots, POS_MAX,
- BTREE_ITER_PREFETCH, k,
+ BTREE_ITER_prefetch, k,
NULL, NULL, BCH_TRANS_COMMIT_no_enospc,
check_snapshot(trans, &iter, k)));
bch_err_fn(c, ret);
@@ -893,7 +900,8 @@ static int check_snapshot_exists(struct btree_trans *trans, u32 id)
if (bch2_snapshot_equiv(c, id))
return 0;
- u32 tree_id;
+ /* 0 is an invalid tree ID */
+ u32 tree_id = 0;
int ret = bch2_snapshot_tree_create(trans, id, 0, &tree_id);
if (ret)
return ret;
@@ -994,7 +1002,7 @@ int bch2_reconstruct_snapshots(struct bch_fs *c)
r.btree = btree;
ret = for_each_btree_key(trans, iter, btree, POS_MIN,
- BTREE_ITER_ALL_SNAPSHOTS|BTREE_ITER_PREFETCH, k, ({
+ BTREE_ITER_all_snapshots|BTREE_ITER_prefetch, k, ({
get_snapshot_trees(c, &r, k.k->p);
}));
if (ret)
@@ -1011,7 +1019,7 @@ int bch2_reconstruct_snapshots(struct bch_fs *c)
darray_for_each(*t, id) {
if (fsck_err_on(!bch2_snapshot_equiv(c, *id),
c, snapshot_node_missing,
- "snapshot node %u from tree %s missing", *id, buf.buf)) {
+ "snapshot node %u from tree %s missing, recreate?", *id, buf.buf)) {
if (t->nr > 1) {
bch_err(c, "cannot reconstruct snapshot trees with multiple nodes");
ret = -BCH_ERR_fsck_repair_unimplemented;
@@ -1083,7 +1091,7 @@ static int bch2_snapshot_node_delete(struct btree_trans *trans, u32 id)
int ret = 0;
s = bch2_bkey_get_iter_typed(trans, &iter, BTREE_ID_snapshots, POS(0, id),
- BTREE_ITER_INTENT, snapshot);
+ BTREE_ITER_intent, snapshot);
ret = bkey_err(s);
bch2_fs_inconsistent_on(bch2_err_matches(ret, ENOENT), c,
"missing snapshot %u", id);
@@ -1192,7 +1200,7 @@ static int create_snapids(struct btree_trans *trans, u32 parent, u32 tree,
int ret;
bch2_trans_iter_init(trans, &iter, BTREE_ID_snapshots,
- POS_MIN, BTREE_ITER_INTENT);
+ POS_MIN, BTREE_ITER_intent);
k = bch2_btree_iter_peek(&iter);
ret = bkey_err(k);
if (ret)
@@ -1360,7 +1368,7 @@ static int snapshot_delete_key(struct btree_trans *trans,
if (snapshot_list_has_id(deleted, k.k->p.snapshot) ||
snapshot_list_has_id(equiv_seen, equiv)) {
return bch2_btree_delete_at(trans, iter,
- BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE);
+ BTREE_UPDATE_internal_snapshot_node);
} else {
return snapshot_list_add(c, equiv_seen, equiv);
}
@@ -1397,15 +1405,15 @@ static int move_key_to_correct_snapshot(struct btree_trans *trans,
new->k.p.snapshot = equiv;
bch2_trans_iter_init(trans, &new_iter, iter->btree_id, new->k.p,
- BTREE_ITER_ALL_SNAPSHOTS|
- BTREE_ITER_CACHED|
- BTREE_ITER_INTENT);
+ BTREE_ITER_all_snapshots|
+ BTREE_ITER_cached|
+ BTREE_ITER_intent);
ret = bch2_btree_iter_traverse(&new_iter) ?:
bch2_trans_update(trans, &new_iter, new,
- BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE) ?:
+ BTREE_UPDATE_internal_snapshot_node) ?:
bch2_btree_delete_at(trans, iter,
- BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE);
+ BTREE_UPDATE_internal_snapshot_node);
bch2_trans_iter_exit(trans, &new_iter);
if (ret)
return ret;
@@ -1596,12 +1604,12 @@ int bch2_delete_dead_snapshots(struct bch_fs *c)
ret = for_each_btree_key_commit(trans, iter,
id, POS_MIN,
- BTREE_ITER_PREFETCH|BTREE_ITER_ALL_SNAPSHOTS, k,
+ BTREE_ITER_prefetch|BTREE_ITER_all_snapshots, k,
&res, NULL, BCH_TRANS_COMMIT_no_enospc,
snapshot_delete_key(trans, &iter, k, &deleted, &equiv_seen, &last_pos)) ?:
for_each_btree_key_commit(trans, iter,
id, POS_MIN,
- BTREE_ITER_PREFETCH|BTREE_ITER_ALL_SNAPSHOTS, k,
+ BTREE_ITER_prefetch|BTREE_ITER_all_snapshots, k,
&res, NULL, BCH_TRANS_COMMIT_no_enospc,
move_key_to_correct_snapshot(trans, &iter, k));
@@ -1636,7 +1644,7 @@ int bch2_delete_dead_snapshots(struct bch_fs *c)
* nodes some depth fields will be off:
*/
ret = for_each_btree_key_commit(trans, iter, BTREE_ID_snapshots, POS_MIN,
- BTREE_ITER_INTENT, k,
+ BTREE_ITER_intent, k,
NULL, NULL, BCH_TRANS_COMMIT_no_enospc,
bch2_fix_child_of_deleted_snapshot(trans, &iter, k, &deleted_interior));
if (ret)
@@ -1692,8 +1700,8 @@ int __bch2_key_has_snapshot_overwrites(struct btree_trans *trans,
int ret;
bch2_trans_iter_init(trans, &iter, id, pos,
- BTREE_ITER_NOT_EXTENTS|
- BTREE_ITER_ALL_SNAPSHOTS);
+ BTREE_ITER_not_extents|
+ BTREE_ITER_all_snapshots);
while (1) {
k = bch2_btree_iter_prev(&iter);
ret = bkey_err(k);
@@ -1745,7 +1753,7 @@ static int bch2_propagate_key_to_snapshot_leaf(struct btree_trans *trans,
pos.snapshot = leaf_id;
- bch2_trans_iter_init(trans, &iter, btree, pos, BTREE_ITER_INTENT);
+ bch2_trans_iter_init(trans, &iter, btree, pos, BTREE_ITER_intent);
k = bch2_btree_iter_peek_slot(&iter);
ret = bkey_err(k);
if (ret)
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-29 15:34:00 +0300