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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 <brauner@kernel.org>
pull/1354/merge
Christian Brauner 2025-11-10 16:08:27 +01:00
parent 7118daabb6
commit 282879afa0
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GPG Key ID: 91C61BC06578DCA2
2 changed files with 2 additions and 3 deletions
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3
include/linux/pid_namespace.h
View File

@ -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;
}

2
kernel/pid_namespace.c
View File

@ -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);