ipc: delete "nr_ipc_ns"
Write-only variable.
Link: http://lkml.kernel.org/r/20160708214356.GA6785@p183.telecom.by
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index 1eee6bc..d10e54f 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -63,8 +63,6 @@
};
extern struct ipc_namespace init_ipc_ns;
-extern atomic_t nr_ipc_ns;
-
extern spinlock_t mq_lock;
#ifdef CONFIG_SYSVIPC
diff --git a/ipc/msgutil.c b/ipc/msgutil.c
index ed81aaf..a521999 100644
--- a/ipc/msgutil.c
+++ b/ipc/msgutil.c
@@ -37,8 +37,6 @@
#endif
};
-atomic_t nr_ipc_ns = ATOMIC_INIT(1);
-
struct msg_msgseg {
struct msg_msgseg *next;
/* the next part of the message follows immediately */
diff --git a/ipc/namespace.c b/ipc/namespace.c
index 04cb07e..d87e6ba 100644
--- a/ipc/namespace.c
+++ b/ipc/namespace.c
@@ -43,7 +43,6 @@
kfree(ns);
return ERR_PTR(err);
}
- atomic_inc(&nr_ipc_ns);
sem_init_ns(ns);
msg_init_ns(ns);
@@ -96,7 +95,6 @@
sem_exit_ns(ns);
msg_exit_ns(ns);
shm_exit_ns(ns);
- atomic_dec(&nr_ipc_ns);
put_user_ns(ns->user_ns);
ns_free_inum(&ns->ns);
