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ipc: support ns lookup 

Support the generic ns lookup infrastructure to support file handles for
namespaces.

Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner 2025-09-12 13:52:43 +02:00
parent 7c60593985
commit 74b24a582e
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
3 changed files with 6 additions and 0 deletions
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1
ipc/msgutil.c
View File

@ -15,6 +15,7 @@
#include <linux/proc_ns.h>
#include <linux/uaccess.h>
#include <linux/sched.h>
#include <linux/nstree.h>
#include "util.h"

3
ipc/namespace.c
View File

@ -15,6 +15,7 @@
#include <linux/mount.h>
#include <linux/user_namespace.h>
#include <linux/proc_ns.h>
#include <linux/nstree.h>
#include <linux/sched/task.h>
#include "util.h"
@ -85,6 +86,7 @@ static struct ipc_namespace *create_ipc_ns(struct user_namespace *user_ns,
sem_init_ns(ns);
shm_init_ns(ns);
ns_tree_add(ns);
return ns;
@ -201,6 +203,7 @@ void put_ipc_ns(struct ipc_namespace *ns)
mq_clear_sbinfo(ns);
spin_unlock(&mq_lock);
ns_tree_remove(ns);
if (llist_add(&ns->mnt_llist, &free_ipc_list))
schedule_work(&free_ipc_work);
}

2
ipc/shm.c
View File

@ -45,6 +45,7 @@
#include <linux/mount.h>
#include <linux/ipc_namespace.h>
#include <linux/rhashtable.h>
#include <linux/nstree.h>
#include <linux/uaccess.h>
@ -148,6 +149,7 @@ void shm_exit_ns(struct ipc_namespace *ns)
static int __init ipc_ns_init(void)
{
shm_init_ns(&init_ipc_ns);
ns_tree_add(&init_ipc_ns);
return 0;
}