This patch adds an identifier to nsproxy. The default init_ns_proxy has identifier 0 and allocated nsproxies are given -1. This identifier will be used by a new syscall sys_bind_ns. Signed-off-by: Cedric Le Goater Cc: Kirill Korotaev Cc: Eric W. Biederman Cc: Herbert Poetzl Cc: Sukadev Bhattiprolu Cc: Andrew Morton --- include/linux/init_task.h | 1 + include/linux/nsproxy.h | 1 + kernel/nsproxy.c | 1 + 3 files changed, 3 insertions(+) Index: 2.6.19-rc2-mm1/include/linux/init_task.h =================================================================== --- 2.6.19-rc2-mm1.orig/include/linux/init_task.h +++ 2.6.19-rc2-mm1/include/linux/init_task.h @@ -72,6 +72,7 @@ extern struct nsproxy init_nsproxy; #define INIT_NSPROXY(nsproxy) { \ .count = ATOMIC_INIT(1), \ .nslock = SPIN_LOCK_UNLOCKED, \ + .id = 0, \ .uts_ns = &init_uts_ns, \ .mnt_ns = NULL, \ INIT_IPC_NS(ipc_ns) \ Index: 2.6.19-rc2-mm1/include/linux/nsproxy.h =================================================================== --- 2.6.19-rc2-mm1.orig/include/linux/nsproxy.h +++ 2.6.19-rc2-mm1/include/linux/nsproxy.h @@ -23,6 +23,7 @@ struct ipc_namespace; struct nsproxy { atomic_t count; spinlock_t nslock; + unsigned long id; struct uts_namespace *uts_ns; struct ipc_namespace *ipc_ns; struct mnt_namespace *mnt_ns; Index: 2.6.19-rc2-mm1/kernel/nsproxy.c =================================================================== --- 2.6.19-rc2-mm1.orig/kernel/nsproxy.c +++ 2.6.19-rc2-mm1/kernel/nsproxy.c @@ -48,6 +48,7 @@ static inline struct nsproxy *clone_name if (ns) { memcpy(ns, orig, sizeof(struct nsproxy)); atomic_set(&ns->count, 1); + ns->id = -1; } return ns; } -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/