3 files changed, 5 insertions, 25 deletions

diff --git a/ipc/sem.c b/ipc/sem.c
index 34193ed..8b929e6 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -689,12 +689,6 @@ static int count_semzcnt (struct sem_array * sma, ushort semnum)
 	return semzcnt;
 }
 
-static void free_un(struct rcu_head *head)
-{
-	struct sem_undo *un = container_of(head, struct sem_undo, rcu);
-	kfree(un);
-}
-
 /* Free a semaphore set. freeary() is called with sem_ids.rw_mutex locked
  * as a writer and the spinlock for this semaphore set hold. sem_ids.rw_mutex
  * remains locked on exit.
@@ -714,7 +708,7 @@ static void freeary(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)
 		un->semid = -1;
 		list_del_rcu(&un->list_proc);
 		spin_unlock(&un->ulp->lock);
-		call_rcu(&un->rcu, free_un);
+		kfree_rcu(un, rcu);
 	}
 
 	/* Wake up all pending processes and let them fail with EIDRM. */
@@ -1612,7 +1606,7 @@ void exit_sem(struct task_struct *tsk)
 		sem_unlock(sma);
 		wake_up_sem_queue_do(&tasks);
 
-		call_rcu(&un->rcu, free_un);
+		kfree_rcu(un, rcu);
 	}
 	kfree(ulp);
 }
diff --git a/ipc/shm.c b/ipc/shm.c
index ab3385a..27884ad 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -277,13 +277,13 @@ static int shm_release(struct inode *ino, struct file *file)
 	return 0;
 }
 
-static int shm_fsync(struct file *file, int datasync)
+static int shm_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 {
 	struct shm_file_data *sfd = shm_file_data(file);
 
 	if (!sfd->file->f_op->fsync)
 		return -EINVAL;
-	return sfd->file->f_op->fsync(sfd->file, datasync);
+	return sfd->file->f_op->fsync(sfd->file, start, end, datasync);
 }
 
 static unsigned long shm_get_unmapped_area(struct file *file,
diff --git a/ipc/util.c b/ipc/util.c
index 5c0d289..75261a3 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -579,19 +579,6 @@ static void ipc_schedule_free(struct rcu_head *head)
 	schedule_work(&sched->work);
 }
 
-/**
- * ipc_immediate_free - free ipc + rcu space
- * @head: RCU callback structure that contains pointer to be freed
- *
- * Free from the RCU callback context.
- */
-static void ipc_immediate_free(struct rcu_head *head)
-{
-	struct ipc_rcu_grace *free =
-		container_of(head, struct ipc_rcu_grace, rcu);
-	kfree(free);
-}
-
 void ipc_rcu_putref(void *ptr)
 {
 	if (--container_of(ptr, struct ipc_rcu_hdr, data)->refcount > 0)
@@ -601,8 +588,7 @@ void ipc_rcu_putref(void *ptr)
 		call_rcu(&container_of(ptr, struct ipc_rcu_grace, data)->rcu,
 				ipc_schedule_free);
 	} else {
-		call_rcu(&container_of(ptr, struct ipc_rcu_grace, data)->rcu,
-				ipc_immediate_free);
+		kfree_rcu(container_of(ptr, struct ipc_rcu_grace, data), rcu);
 	}
 }