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-rw-r--r--Documentation/sysctl/kernel.txt1
-rw-r--r--fs/coredump.c5
2 files changed, 6 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
diff --git a/fs/coredump.c b/fs/coredump.c
index 72f816d6cad9..9bdeca12ae0e 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -190,6 +190,11 @@ static int format_corename(struct core_name *cn, struct coredump_params *cprm)
err = cn_printf(cn, "%d",
task_tgid_vnr(current));
break;
+ /* global pid */
+ case 'P':
+ err = cn_printf(cn, "%d",
+ task_tgid_nr(current));
+ break;
/* uid */
case 'u':
err = cn_printf(cn, "%d", cred->uid);