From nobody Mon Feb 9 17:35:00 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AABEF2C031B; Wed, 22 Oct 2025 16:09:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761149352; cv=none; b=KXHlFfRdbq+sdHpk4RJGETyzkfuCz7Eir9OcduiAUIRjPHVC11IBlHYzyb3RkrtZhd1VNY/ar2yOEbBScsGOiDkl+jSudgg717fSLWFVD7rJzDNrTAlT8UzU9zpHD2KC7i9dTXfJG/AA+jYkaqcCcpf9RUr+9OcpYLgO1sUNCU4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761149352; c=relaxed/simple; bh=WU3OpDiHSBOB5eonlPoaP8MJGbmszqupW5dQlbeASiQ=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Czwkl89iVPCQk3nw85zCBQU9wijuxU83PeXxrWcZFCzxyQfSfspX4g3ap6wCs2Ej4nBOVxO59iilx6hfXNXHdPB/341ycd9Vn8bBo0tOk98DJ+GOb0QFnFmSwgDZqbJuwxy+Hu2SI7nkE11vVpVt0+wOdc5vsCad9Ha6+HXwYwo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jayDfAsx; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jayDfAsx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 63A1CC4CEE7; Wed, 22 Oct 2025 16:09:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761149352; bh=WU3OpDiHSBOB5eonlPoaP8MJGbmszqupW5dQlbeASiQ=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=jayDfAsxEpv1UY1fJryg7y7EeOxwiMC1cKs8w1p0nHsQpiK0O/UbR+dyzTdud+Fy1 Ll5/TQUjsIse2mYrFq36nYQbHz57QZAIX3oa9WlDn7L5ZiPBJug913YFlQNlqA07TN aB+vQhZCtdQYUx9dvK08JK9eQ54d3WUtdZtrvdwM9SPosd6PXb9ztnXVZuiA0qCDmY jejQlxn95GwqDUZ+U+SckQcuJqUi0SXa4zLc2UI0+IUZyykX6y+PPKhtPLqaUGgxZr L16DVIi+qPKk/C5vk3LI2sc/wjJmfKOSKSG71b6mwOIsfvMz0oLxSU/8NdjtNLAlwz nWgRZz6GVmdRA== From: Christian Brauner Date: Wed, 22 Oct 2025 18:06:13 +0200 Subject: [PATCH v2 35/63] selftests/namespaces: add listns() wrapper Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251022-work-namespace-nstree-listns-v2-35-71a588572371@kernel.org> References: <20251022-work-namespace-nstree-listns-v2-0-71a588572371@kernel.org> In-Reply-To: <20251022-work-namespace-nstree-listns-v2-0-71a588572371@kernel.org> To: linux-fsdevel@vger.kernel.org, Josef Bacik , Jeff Layton Cc: Jann Horn , Mike Yuan , =?utf-8?q?Zbigniew_J=C4=99drzejewski-Szmek?= , Lennart Poettering , Daan De Meyer , Aleksa Sarai , Amir Goldstein , Tejun Heo , Johannes Weiner , Thomas Gleixner , Alexander Viro , Jan Kara , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, bpf@vger.kernel.org, Eric Dumazet , Jakub Kicinski , netdev@vger.kernel.org, Arnd Bergmann , Christian Brauner X-Mailer: b4 0.15-dev-96507 X-Developer-Signature: v=1; a=openpgp-sha256; l=1405; i=brauner@kernel.org; h=from:subject:message-id; bh=WU3OpDiHSBOB5eonlPoaP8MJGbmszqupW5dQlbeASiQ=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWT8ZHgWIjlFZn1OzuJ+JqeLLcYOputc9k9sVfk083rt4 SwmrYfaHaUsDGJcDLJiiiwO7Sbhcst5KjYbZWrAzGFlAhnCwMUpABM5Npvhn5n9I6mXv1k/Gsps 2+fC+PXvHtm2l9ncvtK6tpw/P9fw3WBk+BstnTNt4p19J/f8zV772mbn8kRrg2tF/tpGK85LbVn hxwgA X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Add a wrapper for the listns() system call. Signed-off-by: Christian Brauner --- tools/testing/selftests/namespaces/wrappers.h | 35 +++++++++++++++++++++++= ++++ 1 file changed, 35 insertions(+) diff --git a/tools/testing/selftests/namespaces/wrappers.h b/tools/testing/= selftests/namespaces/wrappers.h new file mode 100644 index 000000000000..9741a64a5b1d --- /dev/null +++ b/tools/testing/selftests/namespaces/wrappers.h @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include +#include +#include + +#ifndef __SELFTESTS_NAMESPACES_WRAPPERS_H__ +#define __SELFTESTS_NAMESPACES_WRAPPERS_H__ + +#ifndef __NR_listns + #if defined __alpha__ + #define __NR_listns 580 + #elif defined _MIPS_SIM + #if _MIPS_SIM =3D=3D _MIPS_SIM_ABI32 /* o32 */ + #define __NR_listns 4470 + #endif + #if _MIPS_SIM =3D=3D _MIPS_SIM_NABI32 /* n32 */ + #define __NR_listns 6470 + #endif + #if _MIPS_SIM =3D=3D _MIPS_SIM_ABI64 /* n64 */ + #define __NR_listns 5470 + #endif + #else + #define __NR_listns 470 + #endif +#endif + +static inline int sys_listns(const struct ns_id_req *req, __u64 *ns_ids, + size_t nr_ns_ids, unsigned int flags) +{ + return syscall(__NR_listns, req, ns_ids, nr_ns_ids, flags); +} + +#endif /* __SELFTESTS_NAMESPACES_WRAPPERS_H__ */ --=20 2.47.3