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bcachefs: Don't run overwrite triggers before insert

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This breaks when the trigger is inserting updates for the same btree, as
the inode trigger now does.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-12-12 02:27:52 -05:00
parent 395d7f5e24
commit 75bca41052
1 changed files with 37 additions and 44 deletions
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81
fs/bcachefs/btree_trans_commit.c
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@ -479,8 +479,7 @@ static int run_one_mem_trigger(struct btree_trans *trans,
old, flags);
}
static int run_one_trans_trigger(struct btree_trans *trans, struct btree_insert_entry *i,
bool overwrite)
static int run_one_trans_trigger(struct btree_trans *trans, struct btree_insert_entry *i)
{
verify_update_old_key(trans, i);
@ -507,10 +506,10 @@ static int run_one_trans_trigger(struct btree_trans *trans, struct btree_insert_
return bch2_key_trigger(trans, i->btree_id, i->level, old, bkey_i_to_s(i->k),
BTREE_TRIGGER_insert|
BTREE_TRIGGER_overwrite|flags) ?: 1;
} else if (overwrite && !i->overwrite_trigger_run) {
} else if (!i->overwrite_trigger_run) {
i->overwrite_trigger_run = true;
return bch2_key_trigger_old(trans, i->btree_id, i->level, old, flags) ?: 1;
} else if (!overwrite && !i->insert_trigger_run) {
} else if (!i->insert_trigger_run) {
i->insert_trigger_run = true;
return bch2_key_trigger_new(trans, i->btree_id, i->level, bkey_i_to_s(i->k), flags) ?: 1;
} else {
@ -519,39 +518,45 @@ static int run_one_trans_trigger(struct btree_trans *trans, struct btree_insert_
}
static int run_btree_triggers(struct btree_trans *trans, enum btree_id btree_id,
unsigned btree_id_start)
unsigned *btree_id_updates_start)
{
for (int overwrite = 1; overwrite >= 0; --overwrite) {
bool trans_trigger_run;
bool trans_trigger_run;
/*
* Running triggers will append more updates to the list of updates as
* we're walking it:
*/
do {
trans_trigger_run = false;
/*
* Running triggers will append more updates to the list of updates as
* we're walking it:
*/
do {
trans_trigger_run = false;
for (unsigned i = btree_id_start;
i < trans->nr_updates && trans->updates[i].btree_id <= btree_id;
i++) {
if (trans->updates[i].btree_id != btree_id)
continue;
int ret = run_one_trans_trigger(trans, trans->updates + i, overwrite);
if (ret < 0)
return ret;
if (ret)
trans_trigger_run = true;
for (unsigned i = *btree_id_updates_start;
i < trans->nr_updates && trans->updates[i].btree_id <= btree_id;
i++) {
if (trans->updates[i].btree_id < btree_id) {
*btree_id_updates_start = i;
continue;
}
} while (trans_trigger_run);
}
int ret = run_one_trans_trigger(trans, trans->updates + i);
if (ret < 0)
return ret;
if (ret)
trans_trigger_run = true;
}
} while (trans_trigger_run);
trans_for_each_update(trans, i)
BUG_ON(!(i->flags & BTREE_TRIGGER_norun) &&
i->btree_id == btree_id &&
btree_node_type_has_trans_triggers(i->bkey_type) &&
(!i->insert_trigger_run || !i->overwrite_trigger_run));
return 0;
}
static int bch2_trans_commit_run_triggers(struct btree_trans *trans)
{
unsigned btree_id = 0, btree_id_start = 0;
unsigned btree_id = 0, btree_id_updates_start = 0;
int ret = 0;
/*
@ -565,27 +570,15 @@ static int bch2_trans_commit_run_triggers(struct btree_trans *trans)
if (btree_id == BTREE_ID_alloc)
continue;
while (btree_id_start < trans->nr_updates &&
trans->updates[btree_id_start].btree_id < btree_id)
btree_id_start++;
ret = run_btree_triggers(trans, btree_id, btree_id_start);
ret = run_btree_triggers(trans, btree_id, &btree_id_updates_start);
if (ret)
return ret;
}
for (unsigned idx = 0; idx < trans->nr_updates; idx++) {
struct btree_insert_entry *i = trans->updates + idx;
if (i->btree_id > BTREE_ID_alloc)
break;
if (i->btree_id == BTREE_ID_alloc) {
ret = run_btree_triggers(trans, BTREE_ID_alloc, idx);
if (ret)
return ret;
break;
}
}
btree_id_updates_start = 0;
ret = run_btree_triggers(trans, BTREE_ID_alloc, &btree_id_updates_start);
if (ret)
return ret;
#ifdef CONFIG_BCACHEFS_DEBUG
trans_for_each_update(trans, i)