}
/**
- * btree_node_format_fits - check if we could rewrite node with a new format
+ * bch2_btree_node_format_fits - check if we could rewrite node with a new format
*
- * This assumes all keys can pack with the new format -- it just checks if
- * the re-packed keys would fit inside the node itself.
+ * @c: filesystem handle
+ * @b: btree node to rewrite
+ * @new_f: bkey format to translate keys to
+ *
+ * Returns: true if all re-packed keys will be able to fit in a new node.
+ *
+ * Assumes all keys will successfully pack with the new format.
*/
bool bch2_btree_node_format_fits(struct bch_fs *c, struct btree *b,
struct bkey_format *new_f)
struct write_point *wp;
struct btree *b;
BKEY_PADDED_ONSTACK(k, BKEY_BTREE_PTR_VAL_U64s_MAX) tmp;
- struct open_buckets ob = { .nr = 0 };
+ struct open_buckets obs = { .nr = 0 };
struct bch_devs_list devs_have = (struct bch_devs_list) { 0 };
enum bch_watermark watermark = flags & BCH_WATERMARK_MASK;
unsigned nr_reserve = watermark > BCH_WATERMARK_reclaim
struct btree_alloc *a =
&c->btree_reserve_cache[--c->btree_reserve_cache_nr];
- ob = a->ob;
+ obs = a->ob;
bkey_copy(&tmp.k, &a->k);
mutex_unlock(&c->btree_reserve_cache_lock);
goto mem_alloc;
bkey_btree_ptr_v2_init(&tmp.k);
bch2_alloc_sectors_append_ptrs(c, wp, &tmp.k, btree_sectors(c), false);
- bch2_open_bucket_get(c, wp, &ob);
+ bch2_open_bucket_get(c, wp, &obs);
bch2_alloc_sectors_done(c, wp);
mem_alloc:
b = bch2_btree_node_mem_alloc(trans, interior_node);
BUG_ON(b->ob.nr);
bkey_copy(&b->key, &tmp.k);
- b->ob = ob;
+ b->ob = obs;
return b;
}
{
struct bch_fs *c = as->c;
struct btree *b;
- struct btree_trans trans;
+ struct btree_trans *trans = bch2_trans_get(c);
u64 journal_seq = 0;
unsigned i;
int ret;
- bch2_trans_init(&trans, c, 0, 512);
/*
* If we're already in an error state, it might be because a btree node
* was never written, and we might be trying to free that same btree
b = as->old_nodes[i];
- btree_node_lock_nopath_nofail(&trans, &b->c, SIX_LOCK_read);
+ btree_node_lock_nopath_nofail(trans, &b->c, SIX_LOCK_read);
seq = b->data ? b->data->keys.seq : 0;
six_unlock_read(&b->c.lock);
* journal reclaim does btree updates when flushing bkey_cached entries,
* which may require allocations as well.
*/
- ret = commit_do(&trans, &as->disk_res, &journal_seq,
+ ret = commit_do(trans, &as->disk_res, &journal_seq,
BCH_WATERMARK_reclaim|
BTREE_INSERT_NOFAIL|
BTREE_INSERT_NOCHECK_RW|
BTREE_INSERT_JOURNAL_RECLAIM,
- btree_update_nodes_written_trans(&trans, as));
- bch2_trans_unlock(&trans);
+ btree_update_nodes_written_trans(trans, as));
+ bch2_trans_unlock(trans);
bch2_fs_fatal_err_on(ret && !bch2_journal_error(&c->journal), c,
"%s(): error %s", __func__, bch2_err_str(ret));
struct btree_path *path;
b = as->b;
- path = get_unlocked_mut_path(&trans, as->btree_id, b->c.level, b->key.k.p);
+ path = get_unlocked_mut_path(trans, as->btree_id, b->c.level, b->key.k.p);
/*
* @b is the node we did the final insert into:
*
* we may rarely end up with a locked path besides the one we
* have here:
*/
- bch2_trans_unlock(&trans);
- btree_node_lock_nopath_nofail(&trans, &b->c, SIX_LOCK_intent);
- mark_btree_node_locked(&trans, path, b->c.level, SIX_LOCK_intent);
+ bch2_trans_unlock(trans);
+ btree_node_lock_nopath_nofail(trans, &b->c, SIX_LOCK_intent);
+ mark_btree_node_locked(trans, path, b->c.level, BTREE_NODE_INTENT_LOCKED);
path->l[b->c.level].lock_seq = six_lock_seq(&b->c.lock);
path->l[b->c.level].b = b;
- bch2_btree_node_lock_write_nofail(&trans, path, &b->c);
+ bch2_btree_node_lock_write_nofail(trans, path, &b->c);
mutex_lock(&c->btree_interior_update_lock);
* btree_interior_update_lock:
*/
if (as->b == b) {
- struct bset *i = btree_bset_last(b);
-
BUG_ON(!b->c.level);
BUG_ON(!btree_node_dirty(b));
if (!ret) {
- i->journal_seq = cpu_to_le64(
+ struct bset *last = btree_bset_last(b);
+
+ last->journal_seq = cpu_to_le64(
max(journal_seq,
- le64_to_cpu(i->journal_seq)));
+ le64_to_cpu(last->journal_seq)));
bch2_btree_add_journal_pin(c, b, journal_seq);
} else {
six_unlock_write(&b->c.lock);
btree_node_write_if_need(c, b, SIX_LOCK_intent);
- btree_node_unlock(&trans, path, b->c.level);
- bch2_path_put(&trans, path, true);
+ btree_node_unlock(trans, path, b->c.level);
+ bch2_path_put(trans, path, true);
}
bch2_journal_pin_drop(&c->journal, &as->journal);
for (i = 0; i < as->nr_new_nodes; i++) {
b = as->new_nodes[i];
- btree_node_lock_nopath_nofail(&trans, &b->c, SIX_LOCK_read);
+ btree_node_lock_nopath_nofail(trans, &b->c, SIX_LOCK_read);
btree_node_write_if_need(c, b, SIX_LOCK_read);
six_unlock_read(&b->c.lock);
}
for (i = 0; i < as->nr_open_buckets; i++)
bch2_open_bucket_put(c, c->open_buckets + as->open_buckets[i]);
- bch2_btree_update_free(as, &trans);
- bch2_trans_exit(&trans);
+ bch2_btree_update_free(as, trans);
+ bch2_trans_put(trans);
}
static void btree_interior_update_work(struct work_struct *work)
bch2_recalc_btree_reserve(c);
}
-/**
- * bch_btree_set_root - update the root in memory and on disk
- *
- * To ensure forward progress, the current task must not be holding any
- * btree node write locks. However, you must hold an intent lock on the
- * old root.
- *
- * Note: This allocates a journal entry but doesn't add any keys to
- * it. All the btree roots are part of every journal write, so there
- * is nothing new to be done. This just guarantees that there is a
- * journal write.
- */
static void bch2_btree_set_root(struct btree_update *as,
struct btree_trans *trans,
struct btree_path *path,
;
while (!bch2_keylist_empty(keys)) {
- struct bkey_i *k = bch2_keylist_front(keys);
+ insert = bch2_keylist_front(keys);
- if (bpos_gt(k->k.p, b->key.k.p))
+ if (bpos_gt(insert->k.p, b->key.k.p))
break;
- bch2_insert_fixup_btree_ptr(as, trans, path, b, &node_iter, k);
+ bch2_insert_fixup_btree_ptr(as, trans, path, b, &node_iter, insert);
bch2_keylist_pop_front(keys);
}
}
path1 = get_unlocked_mut_path(trans, path->btree_id, n1->c.level, n1->key.k.p);
six_lock_increment(&n1->c.lock, SIX_LOCK_intent);
- mark_btree_node_locked(trans, path1, n1->c.level, SIX_LOCK_intent);
+ mark_btree_node_locked(trans, path1, n1->c.level, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, path1, n1);
path2 = get_unlocked_mut_path(trans, path->btree_id, n2->c.level, n2->key.k.p);
six_lock_increment(&n2->c.lock, SIX_LOCK_intent);
- mark_btree_node_locked(trans, path2, n2->c.level, SIX_LOCK_intent);
+ mark_btree_node_locked(trans, path2, n2->c.level, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, path2, n2);
/*
path2->locks_want++;
BUG_ON(btree_node_locked(path2, n3->c.level));
six_lock_increment(&n3->c.lock, SIX_LOCK_intent);
- mark_btree_node_locked(trans, path2, n3->c.level, SIX_LOCK_intent);
+ mark_btree_node_locked(trans, path2, n3->c.level, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, path2, n3);
n3->sib_u64s[0] = U16_MAX;
path1 = get_unlocked_mut_path(trans, path->btree_id, n1->c.level, n1->key.k.p);
six_lock_increment(&n1->c.lock, SIX_LOCK_intent);
- mark_btree_node_locked(trans, path1, n1->c.level, SIX_LOCK_intent);
+ mark_btree_node_locked(trans, path1, n1->c.level, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, path1, n1);
if (parent)
}
/**
- * bch_btree_insert_node - insert bkeys into a given btree node
+ * bch2_btree_insert_node - insert bkeys into a given btree node
*
- * @iter: btree iterator
+ * @as: btree_update object
+ * @trans: btree_trans object
+ * @path: path that points to current node
+ * @b: node to insert keys into
* @keys: list of keys to insert
- * @hook: insert callback
- * @persistent: if not null, @persistent will wait on journal write
+ * @flags: transaction commit flags
+ *
+ * Returns: 0 on success, typically transaction restart error on failure
*
* Inserts as many keys as it can into a given btree node, splitting it if full.
* If a split occurred, this function will return early. This can only happen
new_path = get_unlocked_mut_path(trans, path->btree_id, n->c.level, n->key.k.p);
six_lock_increment(&n->c.lock, SIX_LOCK_intent);
- mark_btree_node_locked(trans, new_path, n->c.level, SIX_LOCK_intent);
+ mark_btree_node_locked(trans, new_path, n->c.level, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, new_path, n);
bkey_init(&delete.k);
goto out;
}
-/**
- * bch_btree_node_rewrite - Rewrite/move a btree node
- */
int bch2_btree_node_rewrite(struct btree_trans *trans,
struct btree_iter *iter,
struct btree *b,
new_path = get_unlocked_mut_path(trans, iter->btree_id, n->c.level, n->key.k.p);
six_lock_increment(&n->c.lock, SIX_LOCK_intent);
- mark_btree_node_locked(trans, new_path, n->c.level, SIX_LOCK_intent);
+ mark_btree_node_locked(trans, new_path, n->c.level, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, new_path, n);
trace_and_count(c, btree_node_rewrite, c, b);
int ret;
ret = bch2_trans_do(c, NULL, NULL, 0,
- async_btree_node_rewrite_trans(&trans, a));
+ async_btree_node_rewrite_trans(trans, a));
if (ret)
- bch_err(c, "%s: error %s", __func__, bch2_err_str(ret));
+ bch_err_fn(c, ret);
bch2_write_ref_put(c, BCH_WRITE_REF_node_rewrite);
kfree(a);
}
ret = bch2_fs_read_write_early(c);
if (ret) {
- bch_err(c, "%s: error going read-write: %s",
- __func__, bch2_err_str(ret));
+ bch_err_msg(c, ret, "going read-write");
kfree(a);
return;
}
void bch2_btree_root_alloc(struct bch_fs *c, enum btree_id id)
{
- bch2_trans_run(c, __bch2_btree_root_alloc(&trans, id));
+ bch2_trans_run(c, __bch2_btree_root_alloc(trans, id));
}
void bch2_btree_updates_to_text(struct printbuf *out, struct bch_fs *c)
projects / bcachefs-tools-debian / blobdiff