JFS: Threads should exit with complete_and_exit

fs/jfs/jfs_logmgr.c

@@ -2230,8 +2230,7 @@ int jfsIOWait(void *arg)
 	} while (!jfs_stop_threads);
 
 	jfs_info("jfsIOWait being killed!");
-	complete(&jfsIOwait);
-	return 0;
+	complete_and_exit(&jfsIOwait, 0);
 }
 
 /*

fs/jfs/jfs_txnmgr.c

@@ -2842,8 +2842,7 @@ int jfs_lazycommit(void *arg)
 		jfs_err("jfs_lazycommit being killed w/pending transactions!");
 	else
 		jfs_info("jfs_lazycommit being killed\n");
-	complete(&jfsIOwait);
-	return 0;
+	complete_and_exit(&jfsIOwait, 0);
 }
 
 void txLazyUnlock(struct tblock * tblk)
@@ -3044,8 +3043,7 @@ int jfs_sync(void *arg)
 	} while (!jfs_stop_threads);
 
 	jfs_info("jfs_sync being killed");
-	complete(&jfsIOwait);
-	return 0;
+	complete_and_exit(&jfsIOwait, 0);
 }
 
 #if defined(CONFIG_PROC_FS) && defined(CONFIG_JFS_DEBUG)