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bcachefs: journal_replay_entry_early() checks for nonexistent device

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-04-30 15:45:26 -04:00
parent 13a16dabde
commit adf81796ee
1 changed files with 10 additions and 7 deletions
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17
fs/bcachefs/recovery.c
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@ -373,14 +373,17 @@ static int journal_replay_entry_early(struct bch_fs *c,
case BCH_JSET_ENTRY_dev_usage: {
struct jset_entry_dev_usage *u =
container_of(entry, struct jset_entry_dev_usage, entry);
struct bch_dev *ca = bch2_dev_bkey_exists(c, le32_to_cpu(u->dev));
unsigned i, nr_types = jset_entry_dev_usage_nr_types(u);
unsigned nr_types = jset_entry_dev_usage_nr_types(u);
for (i = 0; i < min_t(unsigned, nr_types, BCH_DATA_NR); i++) {
ca->usage_base->d[i].buckets = le64_to_cpu(u->d[i].buckets);
ca->usage_base->d[i].sectors = le64_to_cpu(u->d[i].sectors);
ca->usage_base->d[i].fragmented = le64_to_cpu(u->d[i].fragmented);
}
rcu_read_lock();
struct bch_dev *ca = bch2_dev_rcu(c, le32_to_cpu(u->dev));
if (ca)
for (unsigned i = 0; i < min_t(unsigned, nr_types, BCH_DATA_NR); i++) {
ca->usage_base->d[i].buckets = le64_to_cpu(u->d[i].buckets);
ca->usage_base->d[i].sectors = le64_to_cpu(u->d[i].sectors);
ca->usage_base->d[i].fragmented = le64_to_cpu(u->d[i].fragmented);
}
rcu_read_unlock();
break;
}