1 files changed, 1 insertions, 0 deletions

diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index ab7d16efa96b..9d4c1d18ad44 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -182,6 +182,7 @@ core_pattern is used to specify a core dumpfile pattern name.
         %<NUL>  '%' is dropped
         %%      output one '%'
         %p      pid
+        %P      global pid (init PID namespace)
         %u      uid
         %g      gid
         %d      dump mode, matches PR_SET_DUMPABLE and