From nobody Sat Feb 7 06:14:37 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 F1F7533FE26; Wed, 29 Oct 2025 12:21:18 +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=1761740479; cv=none; b=Cjaf2HQp3euB/64eKBxgPeZytShTrNj9LBSbOh3fbVcjsHOlqRxw80FzenNYtya0Gh4dpudqf4uHY9kwSB5Mxj/EwoPMggANAnVu1wx+GCpxwKNGn/6CSIsiMwu6Y38Ze8jNCW5eTggiiMXS46dhFG3zYNE0OECj7BU2CxpYQfI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761740479; c=relaxed/simple; bh=GmTU8Q/fclIPwxUSGwafLrmOAHz2L+FN5rNlGUSGB9Y=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=o9+GXRhxUz07eAWvtMS+qdTRGDaAdVMgAYDq2Z8AaMgnWQX/N369zihrmFEsU/3ka/UUSLQ00RDn8AAjTN4JPxfpjNb6nZ55VlQPIDGlmVP7JK7PnuMcRq+W7kzhOuShNMFchmtMgl0EijUTNRVCKCsuzsedsOuTHAEe3SxTDUM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kY47KAOA; 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="kY47KAOA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D1C73C4CEF7; Wed, 29 Oct 2025 12:21:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761740478; bh=GmTU8Q/fclIPwxUSGwafLrmOAHz2L+FN5rNlGUSGB9Y=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=kY47KAOA9u76tdN+uFKZpHtgxLwPgvA0VD1JK9a5TO6S4pe902kh+Em6lBQIkSPwz 5nxut8Gan8C5dozXSMk//Jr3yLN0HioTt+z3ptLr7/zefSDsAL7mJs4oaVcoLKehHs 5nzkRlexHwxaP0AequIiaE8Z2Js8UFM9cBbC+tkqb0zgTfjEDKerM993fkMJT1reHy 2qh1qV5CXtrha3Bjp7f6ItkJzXoQ5aOyG24XLQLpJA8DgT4y1QN2l75MfJqfzPD4GE ovR1l/pIZFw9uOjCK9wR081MNvFPukriA0NXn604oNsFa0unk6P5/jdLhTpnjsFq9Q tDxvIQmarHLSQ== From: Christian Brauner Date: Wed, 29 Oct 2025 13:20:21 +0100 Subject: [PATCH v4 08/72] ns: initialize ns_list_node for initial namespaces 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: <20251029-work-namespace-nstree-listns-v4-8-2e6f823ebdc0@kernel.org> References: <20251029-work-namespace-nstree-listns-v4-0-2e6f823ebdc0@kernel.org> In-Reply-To: <20251029-work-namespace-nstree-listns-v4-0-2e6f823ebdc0@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=3505; i=brauner@kernel.org; h=from:subject:message-id; bh=GmTU8Q/fclIPwxUSGwafLrmOAHz2L+FN5rNlGUSGB9Y=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWQysfWkWDXr7WORMo8xunQ8VdQndb9XKet7tZOe03/fm cMR8+JbRykLgxgXg6yYIotDu0m43HKeis1GmRowc1iZQIYwcHEKwETuRzH84ZSfta3BVjIp4H3n DHmHnb1ic/wis4tFlVmeGFhuawx5xPA//2vYNnf3PZdfzfVe+/XawZ3Piyr+T+djsvda0Hko3fU 0EwA= X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Make sure that the list is always initialized for initial namespaces. Fixes: 885fc8ac0a4d ("nstree: make iterator generic") Signed-off-by: Christian Brauner --- fs/namespace.c | 1 + init/version-timestamp.c | 1 + ipc/msgutil.c | 1 + kernel/cgroup/cgroup.c | 1 + kernel/pid.c | 1 + kernel/time/namespace.c | 1 + kernel/user.c | 1 + 7 files changed, 7 insertions(+) diff --git a/fs/namespace.c b/fs/namespace.c index d82910f33dc4..8ef8ba3dd316 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -5993,6 +5993,7 @@ struct mnt_namespace init_mnt_ns =3D { .passive =3D REFCOUNT_INIT(1), .mounts =3D RB_ROOT, .poll =3D __WAIT_QUEUE_HEAD_INITIALIZER(init_mnt_ns.poll), + .ns.ns_list_node =3D LIST_HEAD_INIT(init_mnt_ns.ns.ns_list_node), }; =20 static void __init init_mount_tree(void) diff --git a/init/version-timestamp.c b/init/version-timestamp.c index d071835121c2..61b2405d97f9 100644 --- a/init/version-timestamp.c +++ b/init/version-timestamp.c @@ -20,6 +20,7 @@ struct uts_namespace init_uts_ns =3D { }, .user_ns =3D &init_user_ns, .ns.inum =3D ns_init_inum(&init_uts_ns), + .ns.ns_list_node =3D LIST_HEAD_INIT(init_uts_ns.ns.ns_list_node), #ifdef CONFIG_UTS_NS .ns.ops =3D &utsns_operations, #endif diff --git a/ipc/msgutil.c b/ipc/msgutil.c index 7a03f6d03de3..c9469fbce27c 100644 --- a/ipc/msgutil.c +++ b/ipc/msgutil.c @@ -30,6 +30,7 @@ struct ipc_namespace init_ipc_ns =3D { .ns.__ns_ref =3D REFCOUNT_INIT(1), .user_ns =3D &init_user_ns, .ns.inum =3D ns_init_inum(&init_ipc_ns), + .ns.ns_list_node =3D LIST_HEAD_INIT(init_ipc_ns.ns.ns_list_node), #ifdef CONFIG_IPC_NS .ns.ops =3D &ipcns_operations, #endif diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index 6ae5f48cf64e..a82918da8bae 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -256,6 +256,7 @@ struct cgroup_namespace init_cgroup_ns =3D { .ns.inum =3D ns_init_inum(&init_cgroup_ns), .root_cset =3D &init_css_set, .ns.ns_type =3D ns_common_type(&init_cgroup_ns), + .ns.ns_list_node =3D LIST_HEAD_INIT(init_cgroup_ns.ns.ns_list_node), }; =20 static struct file_system_type cgroup2_fs_type; diff --git a/kernel/pid.c b/kernel/pid.c index 4fffec767a63..cb7574ca00f7 100644 --- a/kernel/pid.c +++ b/kernel/pid.c @@ -78,6 +78,7 @@ struct pid_namespace init_pid_ns =3D { .child_reaper =3D &init_task, .user_ns =3D &init_user_ns, .ns.inum =3D ns_init_inum(&init_pid_ns), + .ns.ns_list_node =3D LIST_HEAD_INIT(init_pid_ns.ns.ns_list_node), #ifdef CONFIG_PID_NS .ns.ops =3D &pidns_operations, #endif diff --git a/kernel/time/namespace.c b/kernel/time/namespace.c index 5b6997f4dc3d..ee05cad288da 100644 --- a/kernel/time/namespace.c +++ b/kernel/time/namespace.c @@ -484,6 +484,7 @@ struct time_namespace init_time_ns =3D { .ns.inum =3D ns_init_inum(&init_time_ns), .ns.ops =3D &timens_operations, .frozen_offsets =3D true, + .ns.ns_list_node =3D LIST_HEAD_INIT(init_time_ns.ns.ns_list_node), }; =20 void __init time_ns_init(void) diff --git a/kernel/user.c b/kernel/user.c index 0163665914c9..b9cf3b056a71 100644 --- a/kernel/user.c +++ b/kernel/user.c @@ -70,6 +70,7 @@ struct user_namespace init_user_ns =3D { .owner =3D GLOBAL_ROOT_UID, .group =3D GLOBAL_ROOT_GID, .ns.inum =3D ns_init_inum(&init_user_ns), + .ns.ns_list_node =3D LIST_HEAD_INIT(init_user_ns.ns.ns_list_node), #ifdef CONFIG_USER_NS .ns.ops =3D &userns_operations, #endif --=20 2.47.3