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bcachefs: Fix bch2_trigger_alloc when upgrading from old versions

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bch2_trigger_alloc was assuming that the new key would always be newly
created and thus always an alloc_v4 key, but - not when called from
btree_gc.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-08-12 23:24:03 -04:00
parent a24e6e7146
commit bd864bc2d9
1 changed files with 13 additions and 1 deletions
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14
fs/bcachefs/alloc_background.c
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@ -829,7 +829,19 @@ int bch2_trigger_alloc(struct btree_trans *trans,
struct bch_alloc_v4 old_a_convert;
const struct bch_alloc_v4 *old_a = bch2_alloc_to_v4(old, &old_a_convert);
struct bch_alloc_v4 *new_a = bkey_s_to_alloc_v4(new).v;
struct bch_alloc_v4 *new_a;
if (likely(new.k->type == KEY_TYPE_alloc_v4)) {
new_a = bkey_s_to_alloc_v4(new).v;
} else {
BUG_ON(!(flags & BTREE_TRIGGER_gc));
struct bkey_i_alloc_v4 *new_ka = bch2_alloc_to_v4_mut_inlined(trans, new.s_c);
ret = PTR_ERR_OR_ZERO(new_ka);
if (unlikely(ret))
goto err;
new_a = &new_ka->v;
}
if (flags & BTREE_TRIGGER_transactional) {
alloc_data_type_set(new_a, new_a->data_type);