selftests/filesystems: remove CLONE_NEWPIDNS from setup_userns() helper

This is effectively unused and doesn't really server any purpose after
having reviewed all of the tests that rely on it.

Link: https://patch.msgid.link/20251029-work-namespace-nstree-listns-v4-22-2e6f823ebdc0@kernel.org
Tested-by: syzbot@syzkaller.appspotmail.com
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>

diff --git a/tools/testing/selftests/filesystems/utils.c b/tools/testing/selftests/filesystems/utils.c
index c43a69dffd83fb23e32ad78be8d1dc8c27db7a7e..a0c64f415a7fc3cc2761e23e1619c149b54d81e6 100644 (file)
--- a/tools/testing/selftests/filesystems/utils.c
+++ b/tools/testing/selftests/filesystems/utils.c
@@ -487,7 +487,7 @@ int setup_userns(void)
        uid_t uid = getuid();
        gid_t gid = getgid();
 
-       ret = unshare(CLONE_NEWNS|CLONE_NEWUSER|CLONE_NEWPID);
+       ret = unshare(CLONE_NEWNS|CLONE_NEWUSER);
        if (ret) {
                ksft_exit_fail_msg("unsharing mountns and userns: %s\n",
                                   strerror(errno));