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bcachefs: btree node scan: handle encrypted nodes

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-04-11 23:38:07 -04:00
parent 031ad9e7db
commit 87cb0239c8
1 changed files with 10 additions and 0 deletions
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10
fs/bcachefs/btree_node_scan.c
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@ -133,9 +133,19 @@ static void try_read_btree_node(struct find_btree_nodes *f, struct bch_dev *ca,
if (le64_to_cpu(bn->magic) != bset_magic(c))
return;
if (bch2_csum_type_is_encryption(BSET_CSUM_TYPE(&bn->keys))) {
struct nonce nonce = btree_nonce(&bn->keys, 0);
unsigned bytes = (void *) &bn->keys - (void *) &bn->flags;
bch2_encrypt(c, BSET_CSUM_TYPE(&bn->keys), nonce, &bn->flags, bytes);
}
if (btree_id_is_alloc(BTREE_NODE_ID(bn)))
return;
if (BTREE_NODE_LEVEL(bn) >= BTREE_MAX_DEPTH)
return;
rcu_read_lock();
struct found_btree_node n = {
.btree_id = BTREE_NODE_ID(bn),