From 282879afa01936954a570e15b4088a89b6e1b549 Mon Sep 17 00:00:00 2001 From: Christian Brauner Date: Mon, 10 Nov 2025 16:08:27 +0100 Subject: [PATCH] pid: rely on common reference count behavior Now that we changed the generic reference counting mechanism for all namespaces to never manipulate reference counts of initial namespaces we can drop the special handling for pid namespaces. Link: https://patch.msgid.link/20251110-work-namespace-nstree-fixes-v1-15-e8a9264e0fb9@kernel.org Signed-off-by: Christian Brauner --- include/linux/pid_namespace.h | 3 +-- kernel/pid_namespace.c | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h index 445517a72ad06..0e7ae12c96d2a 100644 --- a/include/linux/pid_namespace.h +++ b/include/linux/pid_namespace.h @@ -61,8 +61,7 @@ static inline struct pid_namespace *to_pid_ns(struct ns_common *ns) static inline struct pid_namespace *get_pid_ns(struct pid_namespace *ns) { - if (ns != &init_pid_ns) - ns_ref_inc(ns); + ns_ref_inc(ns); return ns; } diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c index 650be58d8d186..e48f5de413613 100644 --- a/kernel/pid_namespace.c +++ b/kernel/pid_namespace.c @@ -184,7 +184,7 @@ struct pid_namespace *copy_pid_ns(u64 flags, void put_pid_ns(struct pid_namespace *ns) { - if (ns && ns != &init_pid_ns && ns_ref_put(ns)) + if (ns && ns_ref_put(ns)) schedule_work(&ns->work); } EXPORT_SYMBOL_GPL(put_pid_ns); -- 2.47.3