diff options
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/util.c | 21 | ||||
| -rw-r--r-- | ipc/util.h | 3 |
2 files changed, 0 insertions, 24 deletions
diff --git a/ipc/util.c b/ipc/util.c index 556884bab698..2428dd44ca97 100644 --- a/ipc/util.c +++ b/ipc/util.c @@ -394,27 +394,6 @@ void ipc_rmid(struct ipc_ids *ids, struct kern_ipc_perm *ipcp) ipcp->deleted = true; } -/** - * ipc_rcu_alloc - allocate ipc space - * @size: size desired - * - * Allocate memory for an ipc object. - * The first member must be struct kern_ipc_perm. - */ -struct kern_ipc_perm *ipc_rcu_alloc(int size) -{ - /* - * We prepend the allocation with the rcu struct - */ - struct kern_ipc_perm *out = kvmalloc(size, GFP_KERNEL); - if (unlikely(!out)) - return NULL; - - memset(out, 0, size); - atomic_set(&out->refcount, 1); - return out; -} - int ipc_rcu_getref(struct kern_ipc_perm *ptr) { return atomic_inc_not_zero(&ptr->refcount); diff --git a/ipc/util.h b/ipc/util.h index 44efbc0b635b..77336c2bdb9c 100644 --- a/ipc/util.h +++ b/ipc/util.h @@ -112,10 +112,7 @@ int ipcperms(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, short flg); * Objects are reference counted, they start with reference count 1. * getref increases the refcount, the putref call that reduces the recount * to 0 schedules the rcu destruction. Caller must guarantee locking. - * - * struct kern_ipc_perm must be the first member in the allocated structure. */ -struct kern_ipc_perm *ipc_rcu_alloc(int size); int ipc_rcu_getref(struct kern_ipc_perm *ptr); void ipc_rcu_putref(struct kern_ipc_perm *ptr, void (*func)(struct rcu_head *head)); |