diff options
| author | Christian Brauner <brauner@kernel.org> | 2025-09-12 13:52:46 +0200 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-09-19 14:26:15 +0200 |
| commit | b36c823b9a4be5b0c8e38c3fd60cade7d41c216c (patch) | |
| tree | cc5be2a27f35dcbc1454e5fc3677420c8be46c73 /kernel | |
| parent | 488acdcec8e24377506934a95e0ba21619073e8f (diff) | |
time: support ns lookup
Support the generic ns lookup infrastructure to support file handles for
namespaces.
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/time/namespace.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/kernel/time/namespace.c b/kernel/time/namespace.c index 0be93d8f2896..408f60d0a3b6 100644 --- a/kernel/time/namespace.c +++ b/kernel/time/namespace.c @@ -12,6 +12,7 @@ #include <linux/seq_file.h> #include <linux/proc_ns.h> #include <linux/export.h> +#include <linux/nstree.h> #include <linux/time.h> #include <linux/slab.h> #include <linux/cred.h> @@ -104,6 +105,7 @@ static struct time_namespace *clone_time_ns(struct user_namespace *user_ns, ns->user_ns = get_user_ns(user_ns); ns->offsets = old_ns->offsets; ns->frozen_offsets = false; + ns_tree_add(ns); return ns; fail_free_page: @@ -250,11 +252,13 @@ out: void free_time_ns(struct time_namespace *ns) { + ns_tree_remove(ns); dec_time_namespaces(ns->ucounts); put_user_ns(ns->user_ns); ns_free_inum(&ns->ns); __free_page(ns->vvar_page); - kfree(ns); + /* Concurrent nstree traversal depends on a grace period. */ + kfree_rcu(ns, ns.ns_rcu); } static struct time_namespace *to_time_ns(struct ns_common *ns) @@ -487,3 +491,8 @@ struct time_namespace init_time_ns = { .ns.ops = &timens_operations, .frozen_offsets = true, }; + +void __init time_ns_init(void) +{ + ns_tree_add(&init_time_ns); +} |