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-rw-r--r--Documentation/userspace-api/seccomp_filter.rst9
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/userspace-api/seccomp_filter.rst b/Documentation/userspace-api/seccomp_filter.rst
index 2d1d8ab04ac5..f4977357daf2 100644
--- a/Documentation/userspace-api/seccomp_filter.rst
+++ b/Documentation/userspace-api/seccomp_filter.rst
@@ -141,6 +141,15 @@ In precedence order, they are:
allow use of ptrace, even of other sandboxed processes, without
extreme care; ptracers can use this mechanism to escape.)
+``SECCOMP_RET_LOG``:
+ Results in the system call being executed after it is logged. This
+ should be used by application developers to learn which syscalls their
+ application needs without having to iterate through multiple test and
+ development cycles to build the list.
+
+ This action will only be logged if "log" is present in the
+ actions_logged sysctl string.
+
``SECCOMP_RET_ALLOW``:
Results in the system call being executed.