* [PATCH] ipc: delete "nr_ipc_ns"
@ 2016-07-08 21:43 Alexey Dobriyan
0 siblings, 0 replies; only message in thread
From: Alexey Dobriyan @ 2016-07-08 21:43 UTC (permalink / raw)
To: akpm; +Cc: linux-kernel
Write-only variable.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---
include/linux/ipc_namespace.h | 2 --
ipc/msgutil.c | 2 --
ipc/namespace.c | 2 --
3 files changed, 6 deletions(-)
--- a/include/linux/ipc_namespace.h
+++ b/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
--- a/ipc/msgutil.c
+++ b/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 */
--- a/ipc/namespace.c
+++ b/ipc/namespace.c
@@ -40,7 +40,6 @@ 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);
@@ -95,7 +94,6 @@ 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);
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2016-07-08 21:43 [PATCH] ipc: delete "nr_ipc_ns" Alexey Dobriyan
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