X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=ipc%2Fnamespace.c;h=068caf18d56509711e46b47b25a363254d681abe;hb=45701e2636a02ab1c5305ead5236f05bda64c15f;hp=1a3ffd40356e37d0270c18fde4765c50dd6872a8;hpb=a643fc7253261be2275c02cb33fa7bf4bfc8cdc4;p=karo-tx-linux.git diff --git a/ipc/namespace.c b/ipc/namespace.c index 1a3ffd40356e..068caf18d565 100644 --- a/ipc/namespace.c +++ b/ipc/namespace.c @@ -26,16 +26,17 @@ static struct ipc_namespace *create_ipc_ns(struct user_namespace *user_ns, if (ns == NULL) return ERR_PTR(-ENOMEM); - err = proc_alloc_inum(&ns->proc_inum); + err = ns_alloc_inum(&ns->ns); if (err) { kfree(ns); return ERR_PTR(err); } + ns->ns.ops = &ipcns_operations; atomic_set(&ns->count, 1); err = mq_init_ns(ns); if (err) { - proc_free_inum(ns->proc_inum); + ns_free_inum(&ns->ns); kfree(ns); return ERR_PTR(err); } @@ -97,7 +98,7 @@ static void free_ipc_ns(struct ipc_namespace *ns) atomic_dec(&nr_ipc_ns); put_user_ns(ns->user_ns); - proc_free_inum(ns->proc_inum); + ns_free_inum(&ns->ns); kfree(ns); } @@ -127,7 +128,12 @@ void put_ipc_ns(struct ipc_namespace *ns) } } -static void *ipcns_get(struct task_struct *task) +static inline struct ipc_namespace *to_ipc_ns(struct ns_common *ns) +{ + return container_of(ns, struct ipc_namespace, ns); +} + +static struct ns_common *ipcns_get(struct task_struct *task) { struct ipc_namespace *ns = NULL; struct nsproxy *nsproxy; @@ -138,17 +144,17 @@ static void *ipcns_get(struct task_struct *task) ns = get_ipc_ns(nsproxy->ipc_ns); task_unlock(task); - return ns; + return ns ? &ns->ns : NULL; } -static void ipcns_put(void *ns) +static void ipcns_put(struct ns_common *ns) { - return put_ipc_ns(ns); + return put_ipc_ns(to_ipc_ns(ns)); } -static int ipcns_install(struct nsproxy *nsproxy, void *new) +static int ipcns_install(struct nsproxy *nsproxy, struct ns_common *new) { - struct ipc_namespace *ns = new; + struct ipc_namespace *ns = to_ipc_ns(new); if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN) || !ns_capable(current_user_ns(), CAP_SYS_ADMIN)) return -EPERM; @@ -160,18 +166,10 @@ static int ipcns_install(struct nsproxy *nsproxy, void *new) return 0; } -static unsigned int ipcns_inum(void *vp) -{ - struct ipc_namespace *ns = vp; - - return ns->proc_inum; -} - const struct proc_ns_operations ipcns_operations = { .name = "ipc", .type = CLONE_NEWIPC, .get = ipcns_get, .put = ipcns_put, .install = ipcns_install, - .inum = ipcns_inum, };