1 files changed, 18 insertions, 3 deletions
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 6a8ac1d..46a15d8 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -38,10 +38,12 @@ static int proc_set_super(struct super_block *sb, void *data)
 }
 
 enum {
-	Opt_err,
+	Opt_gid, Opt_hidepid, Opt_err,
 };
 
 static const match_table_t tokens = {
+	{Opt_hidepid, "hidepid=%u"},
+	{Opt_gid, "gid=%u"},
 	{Opt_err, NULL},
 };
 
@@ -49,8 +51,7 @@ static int proc_parse_options(char *options, struct pid_namespace *pid)
 {
 	char *p;
 	substring_t args[MAX_OPT_ARGS];
-
-	pr_debug("proc: options = %s\n", options);
+	int option;
 
 	if (!options)
 		return 1;
@@ -63,6 +64,20 @@ static int proc_parse_options(char *options, struct pid_namespace *pid)
 		args[0].to = args[0].from = 0;
 		token = match_token(p, tokens, args);
 		switch (token) {
+		case Opt_gid:
+			if (match_int(&args[0], &option))
+				return 0;
+			pid->pid_gid = option;
+			break;
+		case Opt_hidepid:
+			if (match_int(&args[0], &option))
+				return 0;
+			if (option < 0 || option > 2) {
+				pr_err("proc: hidepid value must be between 0 and 2.\n");
+				return 0;
+			}
+			pid->hide_pid = option;
+			break;
 		default:
 			pr_err("proc: unrecognized mount option \"%s\" "
 			       "or missing value\n", p);