tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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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>

Christian Brauner 282879af 7118daab

+2 -3
+1 -2
include/linux/pid_namespace.h
··· 61 61 62 62 static inline struct pid_namespace *get_pid_ns(struct pid_namespace *ns) 63 63 { 64 - if (ns != &init_pid_ns) 65 - ns_ref_inc(ns); 64 + ns_ref_inc(ns); 66 65 return ns; 67 66 } 68 67
+1 -1
kernel/pid_namespace.c
··· 184 184 185 185 void put_pid_ns(struct pid_namespace *ns) 186 186 { 187 - if (ns && ns != &init_pid_ns && ns_ref_put(ns)) 187 + if (ns && ns_ref_put(ns)) 188 188 schedule_work(&ns->work); 189 189 } 190 190 EXPORT_SYMBOL_GPL(put_pid_ns);