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ipc: delete "nr_ipc_ns"

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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>
This commit is contained in:
Alexey Dobriyan 2016-08-02 14:07:32 -07:00 committed by Linus Torvalds
parent a4691deabf
commit 3bd080e4d8
3 changed files with 0 additions and 6 deletions
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2
include/linux/ipc_namespace.h
View file

@ -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

2
ipc/msgutil.c
View file

@ -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 */

2
ipc/namespace.c
View file

@ -43,7 +43,6 @@ static struct ipc_namespace *create_ipc_ns(struct user_namespace *user_ns,
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_namespace *ns)
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);