}
EXPORT_SYMBOL_GPL(__fscrypt_prepare_lookup);
+int __fscrypt_prepare_readdir(struct inode *dir)
+{
+ return fscrypt_get_encryption_info(dir);
+}
+EXPORT_SYMBOL_GPL(__fscrypt_prepare_readdir);
+
+int __fscrypt_prepare_setattr(struct dentry *dentry, struct iattr *attr)
+{
+ if (attr->ia_valid & ATTR_SIZE)
+ return fscrypt_require_key(d_inode(dentry));
+ return 0;
+}
+EXPORT_SYMBOL_GPL(__fscrypt_prepare_setattr);
+
/**
* fscrypt_prepare_setflags() - prepare to change flags with FS_IOC_SETFLAGS
* @inode: the inode on which flags are being changed
unsigned int oldflags, unsigned int flags)
{
struct fscrypt_info *ci;
+ struct key *key;
struct fscrypt_master_key *mk;
int err;
ci = inode->i_crypt_info;
if (ci->ci_policy.version != FSCRYPT_POLICY_V2)
return -EINVAL;
- mk = ci->ci_master_key->payload.data[0];
- down_read(&mk->mk_secret_sem);
+ key = ci->ci_master_key;
+ mk = key->payload.data[0];
+ down_read(&key->sem);
if (is_master_key_secret_present(&mk->mk_secret))
err = fscrypt_derive_dirhash_key(ci, mk);
else
err = -ENOKEY;
- up_read(&mk->mk_secret_sem);
+ up_read(&key->sem);
return err;
}
return 0;