From: Alexey Dobriyan <adobriyan@xxxxxxxxx> Subject: ipc: delete "nr_ipc_ns" Write-only variable. Link: http://lkml.kernel.org/r/20160708214356.GA6785@xxxxxxxxxxxxxxx Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/ipc_namespace.h | 2 -- ipc/msgutil.c | 2 -- ipc/namespace.c | 2 -- 3 files changed, 6 deletions(-) diff -puN include/linux/ipc_namespace.h~ipc-delete-nr_ipc_ns include/linux/ipc_namespace.h --- a/include/linux/ipc_namespace.h~ipc-delete-nr_ipc_ns +++ a/include/linux/ipc_namespace.h @@ -63,8 +63,6 @@ struct ipc_namespace { }; extern struct ipc_namespace init_ipc_ns; -extern atomic_t nr_ipc_ns; - extern spinlock_t mq_lock; #ifdef CONFIG_SYSVIPC diff -puN ipc/msgutil.c~ipc-delete-nr_ipc_ns ipc/msgutil.c --- a/ipc/msgutil.c~ipc-delete-nr_ipc_ns +++ a/ipc/msgutil.c @@ -37,8 +37,6 @@ struct ipc_namespace init_ipc_ns = { #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 -puN ipc/namespace.c~ipc-delete-nr_ipc_ns ipc/namespace.c --- a/ipc/namespace.c~ipc-delete-nr_ipc_ns +++ a/ipc/namespace.c @@ -43,7 +43,6 @@ static struct ipc_namespace *create_ipc_ kfree(ns); return ERR_PTR(err); } - atomic_inc(&nr_ipc_ns); sem_init_ns(ns); msg_init_ns(ns); @@ -96,7 +95,6 @@ static void free_ipc_ns(struct ipc_names 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); _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
