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Commit d7e14035 authored by Kent Overstreet's avatar Kent Overstreet
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bcachefs: get_unlocked_mut_path() -> btree_path_idx_t 

Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
parent 542e6396
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Showing with 42 additions and 43 deletions
fs/bcachefs/btree_update_interior.c
View file @ d7e14035
......@@ -29,10 +29,10 @@ static int bch2_btree_insert_node(struct btree_update *, struct btree_trans *,
struct keylist *, unsigned);
static void bch2_btree_update_add_new_node(struct btree_update *, struct btree *);
static struct btree_path *get_unlocked_mut_path(struct btree_trans *trans,
enum btree_id btree_id,
unsigned level,
struct bpos pos)
static btree_path_idx_t get_unlocked_mut_path(struct btree_trans *trans,
enum btree_id btree_id,
unsigned level,
struct bpos pos)
{
btree_path_idx_t path_idx = bch2_path_get(trans, btree_id, pos, level + 1, level,
BTREE_ITER_NOPRESERVE|
......@@ -42,7 +42,7 @@ static struct btree_path *get_unlocked_mut_path(struct btree_trans *trans,
struct btree_path *path = trans->paths + path_idx;
bch2_btree_path_downgrade(trans, path);
__bch2_btree_path_unlock(trans, path);
return path;
return path_idx;
}
/* Debug code: */
......@@ -647,10 +647,11 @@ static void btree_update_nodes_written(struct btree_update *as)
"%s(): error %s", __func__, bch2_err_str(ret));
err:
if (as->b) {
struct btree_path *path;
b = as->b;
path = get_unlocked_mut_path(trans, as->btree_id, b->c.level, b->key.k.p);
btree_path_idx_t path_idx = get_unlocked_mut_path(trans,
as->btree_id, b->c.level, b->key.k.p);
struct btree_path *path = trans->paths + path_idx;
/*
* @b is the node we did the final insert into:
*
......@@ -720,7 +721,7 @@ static void btree_update_nodes_written(struct btree_update *as)
btree_node_write_if_need(c, b, SIX_LOCK_intent);
btree_node_unlock(trans, path, b->c.level);
bch2_path_put(trans, path->idx, true);
bch2_path_put(trans, path_idx, true);
}
bch2_journal_pin_drop(&c->journal, &as->journal);
......@@ -1476,7 +1477,7 @@ static int btree_split(struct btree_update *as, struct btree_trans *trans,
struct bch_fs *c = as->c;
struct btree *parent = btree_node_parent(path, b);
struct btree *n1, *n2 = NULL, *n3 = NULL;
struct btree_path *path1 = NULL, *path2 = NULL;
btree_path_idx_t path1 = 0, path2 = 0;
u64 start_time = local_clock();
int ret = 0;
......@@ -1511,13 +1512,13 @@ static int btree_split(struct btree_update *as, struct btree_trans *trans,
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, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, path1, n1);
mark_btree_node_locked(trans, trans->paths + path1, n1->c.level, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, trans->paths + 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, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, path2, n2);
mark_btree_node_locked(trans, trans->paths + path2, n2->c.level, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, trans->paths + path2, n2);
/*
* Note that on recursive parent_keys == keys, so we
......@@ -1534,11 +1535,11 @@ static int btree_split(struct btree_update *as, struct btree_trans *trans,
bch2_btree_update_add_new_node(as, n3);
six_unlock_write(&n3->c.lock);
path2->locks_want++;
BUG_ON(btree_node_locked(path2, n3->c.level));
trans->paths[path2].locks_want++;
BUG_ON(btree_node_locked(trans->paths + path2, n3->c.level));
six_lock_increment(&n3->c.lock, SIX_LOCK_intent);
mark_btree_node_locked(trans, path2, n3->c.level, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, path2, n3);
mark_btree_node_locked(trans, trans->paths + path2, n3->c.level, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, trans->paths + path2, n3);
n3->sib_u64s[0] = U16_MAX;
n3->sib_u64s[1] = U16_MAX;
......@@ -1561,8 +1562,8 @@ static int btree_split(struct btree_update *as, struct btree_trans *trans,
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, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, path1, n1);
mark_btree_node_locked(trans, trans->paths + path1, n1->c.level, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, trans->paths + path1, n1);
if (parent)
bch2_keylist_add(&as->parent_keys, &n1->key);
......@@ -1604,8 +1605,8 @@ static int btree_split(struct btree_update *as, struct btree_trans *trans,
if (n3)
bch2_trans_node_add(trans, path, n3);
if (n2)
bch2_trans_node_add(trans, path2, n2);
bch2_trans_node_add(trans, path1, n1);
bch2_trans_node_add(trans, trans->paths + path2, n2);
bch2_trans_node_add(trans, trans->paths + path1, n1);
if (n3)
six_unlock_intent(&n3->c.lock);
......@@ -1614,12 +1615,12 @@ static int btree_split(struct btree_update *as, struct btree_trans *trans,
six_unlock_intent(&n1->c.lock);
out:
if (path2) {
__bch2_btree_path_unlock(trans, path2);
bch2_path_put(trans, path2->idx, true);
__bch2_btree_path_unlock(trans, trans->paths + path2);
bch2_path_put(trans, path2, true);
}
if (path1) {
__bch2_btree_path_unlock(trans, path1);
bch2_path_put(trans, path1->idx, true);
__bch2_btree_path_unlock(trans, trans->paths + path1);
bch2_path_put(trans, path1, true);
}
bch2_trans_verify_locks(trans);
......@@ -1770,7 +1771,6 @@ int __bch2_foreground_maybe_merge(struct btree_trans *trans,
enum btree_node_sibling sib)
{
struct bch_fs *c = trans->c;
struct btree_path *sib_path = NULL, *new_path = NULL;
struct btree_update *as;
struct bkey_format_state new_s;
struct bkey_format new_f;
......@@ -1778,6 +1778,7 @@ int __bch2_foreground_maybe_merge(struct btree_trans *trans,
struct btree *b, *m, *n, *prev, *next, *parent;
struct bpos sib_pos;
size_t sib_u64s;
btree_path_idx_t sib_path = 0, new_path = 0;
u64 start_time = local_clock();
int ret = 0;
......@@ -1796,20 +1797,18 @@ int __bch2_foreground_maybe_merge(struct btree_trans *trans,
? bpos_predecessor(b->data->min_key)
: bpos_successor(b->data->max_key);
btree_path_idx_t sib_path_idx =
bch2_path_get(trans, path->btree_id, sib_pos,
U8_MAX, level, BTREE_ITER_INTENT, _THIS_IP_);
ret = bch2_btree_path_traverse(trans, sib_path_idx, false);
sib_path = bch2_path_get(trans, path->btree_id, sib_pos,
U8_MAX, level, BTREE_ITER_INTENT, _THIS_IP_);
ret = bch2_btree_path_traverse(trans, sib_path, false);
if (ret)
goto err;
sib_path = trans->paths + sib_path_idx;
btree_path_set_should_be_locked(sib_path);
btree_path_set_should_be_locked(trans->paths + sib_path);
m = sib_path->l[level].b;
m = trans->paths[sib_path].l[level].b;
if (btree_node_parent(path, b) !=
btree_node_parent(sib_path, m)) {
btree_node_parent(trans->paths + sib_path, m)) {
b->sib_u64s[sib] = U16_MAX;
goto out;
}
......@@ -1895,8 +1894,8 @@ int __bch2_foreground_maybe_merge(struct btree_trans *trans,
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, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, new_path, n);
mark_btree_node_locked(trans, trans->paths + new_path, n->c.level, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, trans->paths + new_path, n);
bkey_init(&delete.k);
delete.k.p = prev->key.k.p;
......@@ -1915,7 +1914,7 @@ int __bch2_foreground_maybe_merge(struct btree_trans *trans,
bch2_btree_node_write(c, n, SIX_LOCK_intent, 0);
bch2_btree_node_free_inmem(trans, path, b);
bch2_btree_node_free_inmem(trans, sib_path, m);
bch2_btree_node_free_inmem(trans, trans->paths + sib_path, m);
bch2_trans_node_add(trans, path, n);
......@@ -1929,8 +1928,8 @@ int __bch2_foreground_maybe_merge(struct btree_trans *trans,
out:
err:
if (new_path)
bch2_path_put(trans, new_path->idx, true);
bch2_path_put(trans, sib_path_idx, true);
bch2_path_put(trans, new_path, true);
bch2_path_put(trans, sib_path, true);
bch2_trans_verify_locks(trans);
return ret;
err_free_update:
......@@ -1945,9 +1944,9 @@ int bch2_btree_node_rewrite(struct btree_trans *trans,
unsigned flags)
{
struct bch_fs *c = trans->c;
struct btree_path *new_path = NULL;
struct btree *n, *parent;
struct btree_update *as;
btree_path_idx_t new_path = 0;
int ret;
flags |= BCH_TRANS_COMMIT_no_enospc;
......@@ -1969,8 +1968,8 @@ int bch2_btree_node_rewrite(struct btree_trans *trans,
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, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, new_path, n);
mark_btree_node_locked(trans, trans->paths + new_path, n->c.level, BTREE_NODE_INTENT_LOCKED);
bch2_btree_path_level_init(trans, trans->paths + new_path, n);
trace_and_count(c, btree_node_rewrite, trans, b);
......@@ -1995,7 +1994,7 @@ int bch2_btree_node_rewrite(struct btree_trans *trans,
bch2_btree_update_done(as, trans);
out:
if (new_path)
bch2_path_put(trans, new_path->idx, true);
bch2_path_put(trans, new_path, true);
bch2_trans_downgrade(trans);
return ret;
err:
......
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