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-rw-r--r--Documentation/keys.txt15
1 files changed, 14 insertions, 1 deletions
diff --git a/Documentation/keys.txt b/Documentation/keys.txt
index 6304db59bfe4..c17c4ca74302 100644
--- a/Documentation/keys.txt
+++ b/Documentation/keys.txt
@@ -498,7 +498,7 @@ The keyctl syscall functions are:
keyring is full, error ENFILE will result.
The link procedure checks the nesting of the keyrings, returning ELOOP if
- it appears to deep or EDEADLK if the link would introduce a cycle.
+ it appears too deep or EDEADLK if the link would introduce a cycle.
(*) Unlink a key or keyring from another keyring:
@@ -628,6 +628,19 @@ The keyctl syscall functions are:
there is one, otherwise the user default session keyring.
+ (*) Set the timeout on a key.
+
+ long keyctl(KEYCTL_SET_TIMEOUT, key_serial_t key, unsigned timeout);
+
+ This sets or clears the timeout on a key. The timeout can be 0 to clear
+ the timeout or a number of seconds to set the expiry time that far into
+ the future.
+
+ The process must have attribute modification access on a key to set its
+ timeout. Timeouts may not be set with this function on negative, revoked
+ or expired keys.
+
+
===============
KERNEL SERVICES
===============
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