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Diffstat (limited to 'Documentation/security/keys/core.rst')
| -rw-r--r-- | Documentation/security/keys/core.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/security/keys/core.rst b/Documentation/security/keys/core.rst index 82dd457ff78d..003f1452a5b7 100644 --- a/Documentation/security/keys/core.rst +++ b/Documentation/security/keys/core.rst @@ -1147,6 +1147,16 @@ payload contents" for more information. case error ERESTARTSYS will be returned. + * To search for a key under RCU conditions, call:: + + struct key *request_key_rcu(const struct key_type *type, + const char *description); + + which is similar to request_key() except that it does not check for keys + that are under construction and it will not call out to userspace to + construct a key if it can't find a match. + + * When it is no longer required, the key should be released using:: void key_put(struct key *key); |