diff options
| -rw-r--r-- | fs/crypto/policy.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c index 2d73fd39ad96..b92f34523178 100644 --- a/fs/crypto/policy.c +++ b/fs/crypto/policy.c @@ -192,10 +192,15 @@ static bool fscrypt_supported_v2_policy(const struct fscrypt_policy_v2 *policy, 32, 32)) return false; + /* + * IV_INO_LBLK_32 hashes the inode number, so in principle it can + * support any ino_bits. However, currently the inode number is gotten + * from inode::i_ino which is 'unsigned long'. So for now the + * implementation limit is 32 bits. + */ if ((policy->flags & FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32) && - /* This uses hashed inode numbers, so ino_bits doesn't matter. */ !supported_iv_ino_lblk_policy(policy, inode, "IV_INO_LBLK_32", - INT_MAX, 32)) + 32, 32)) return false; if (memchr_inv(policy->__reserved, 0, sizeof(policy->__reserved))) { |