[PATCH 3/9] nscommon: move to separate file
From: Christian Brauner <brauner@kernel.org>
Date: 2025-09-17 10:28:50
Also in:
cgroups, linux-fsdevel, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
It's really awkward spilling the ns common infrastructure into multiple headers. Move it to a separate file. Signed-off-by: Christian Brauner <brauner@kernel.org> --- include/linux/ns_common.h | 3 +++ include/linux/proc_ns.h | 19 ------------------- kernel/Makefile | 2 +- kernel/nscommon.c | 21 +++++++++++++++++++++ 4 files changed, 25 insertions(+), 20 deletions(-)
diff --git a/include/linux/ns_common.h b/include/linux/ns_common.h
index 7224072cccc5..78b17fe80b62 100644
--- a/include/linux/ns_common.h
+++ b/include/linux/ns_common.h@@ -31,6 +31,9 @@ struct ns_common { }; }; +int ns_common_init(struct ns_common *ns, const struct proc_ns_operations *ops, + bool alloc_inum); + #define to_ns_common(__ns) \ _Generic((__ns), \ struct cgroup_namespace *: &(__ns)->ns, \
diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
index 7f89f0829e60..9f21670b5824 100644
--- a/include/linux/proc_ns.h
+++ b/include/linux/proc_ns.h@@ -66,25 +66,6 @@ static inline void proc_free_inum(unsigned int inum) {} #endif /* CONFIG_PROC_FS */ -static inline int ns_common_init(struct ns_common *ns, - const struct proc_ns_operations *ops, - bool alloc_inum) -{ - if (alloc_inum) { - int ret; - ret = proc_alloc_inum(&ns->inum); - if (ret) - return ret; - } - refcount_set(&ns->count, 1); - ns->stashed = NULL; - ns->ops = ops; - ns->ns_id = 0; - RB_CLEAR_NODE(&ns->ns_tree_node); - INIT_LIST_HEAD(&ns->ns_list_node); - return 0; -} - #define ns_free_inum(ns) proc_free_inum((ns)->inum) #define get_proc_ns(inode) ((struct ns_common *)(inode)->i_private)
diff --git a/kernel/Makefile b/kernel/Makefile
index b807516a1b43..1f48f7cd2d7b 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile@@ -8,7 +8,7 @@ obj-y = fork.o exec_domain.o panic.o \ sysctl.o capability.o ptrace.o user.o \ signal.o sys.o umh.o workqueue.o pid.o task_work.o \ extable.o params.o \ - kthread.o sys_ni.o nsproxy.o nstree.o \ + kthread.o sys_ni.o nsproxy.o nstree.o nscommon.o \ notifier.o ksysfs.o cred.o reboot.o \ async.o range.o smpboot.o ucount.o regset.o ksyms_common.o
diff --git a/kernel/nscommon.c b/kernel/nscommon.c
new file mode 100644
index 000000000000..ebf4783d0505
--- /dev/null
+++ b/kernel/nscommon.c@@ -0,0 +1,21 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include <linux/ns_common.h> + +int ns_common_init(struct ns_common *ns, const struct proc_ns_operations *ops, + bool alloc_inum) +{ + if (alloc_inum) { + int ret; + ret = proc_alloc_inum(&ns->inum); + if (ret) + return ret; + } + refcount_set(&ns->count, 1); + ns->stashed = NULL; + ns->ops = ops; + ns->ns_id = 0; + RB_CLEAR_NODE(&ns->ns_tree_node); + INIT_LIST_HEAD(&ns->ns_list_node); + return 0; +}
--
2.47.3