On Fri 12-09-25 13:52:48, Christian Brauner wrote:
Support the generic ns lookup infrastructure to support file handles for namespaces.
Signed-off-by: Christian Brauner brauner@kernel.org
Looks good. Feel free to add:
Reviewed-by: Jan Kara jack@suse.cz
Honza
kernel/utsname.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/kernel/utsname.c b/kernel/utsname.c index 02037010b378..64155417ae0c 100644 --- a/kernel/utsname.c +++ b/kernel/utsname.c @@ -13,6 +13,7 @@ #include <linux/cred.h> #include <linux/user_namespace.h> #include <linux/proc_ns.h> +#include <linux/nstree.h> #include <linux/sched/task.h> static struct kmem_cache *uts_ns_cache __ro_after_init; @@ -58,6 +59,7 @@ static struct uts_namespace *clone_uts_ns(struct user_namespace *user_ns, memcpy(&ns->name, &old_ns->name, sizeof(ns->name)); ns->user_ns = get_user_ns(user_ns); up_read(&uts_sem);
- ns_tree_add(ns); return ns;
fail_free: @@ -93,10 +95,12 @@ struct uts_namespace *copy_utsname(unsigned long flags, void free_uts_ns(struct uts_namespace *ns) {
- ns_tree_remove(ns); dec_uts_namespaces(ns->ucounts); put_user_ns(ns->user_ns); ns_free_inum(&ns->ns);
- kmem_cache_free(uts_ns_cache, ns);
- /* Concurrent nstree traversal depends on a grace period. */
- kfree_rcu(ns, ns.ns_rcu);
} static inline struct uts_namespace *to_uts_ns(struct ns_common *ns) @@ -162,4 +166,5 @@ void __init uts_ns_init(void) offsetof(struct uts_namespace, name), sizeof_field(struct uts_namespace, name), NULL);
- ns_tree_add(&init_uts_ns);
}
-- 2.47.3