Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754198AbbHXLVJ (ORCPT ); Mon, 24 Aug 2015 07:21:09 -0400 Received: from mail-yk0-f174.google.com ([209.85.160.174]:32907 "EHLO mail-yk0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754026AbbHXLUs (ORCPT ); Mon, 24 Aug 2015 07:20:48 -0400 From: Kevin Hao To: Michael Ellerman Cc: Benjamin Herrenschmidt , Peter Zijlstra , Ingo Molnar , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 1/6] jump_label: make it possible for the archs to invoke jump_label_init() much earlier Date: Mon, 24 Aug 2015 19:20:23 +0800 Message-Id: <1440415228-8006-2-git-send-email-haokexin@gmail.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1440415228-8006-1-git-send-email-haokexin@gmail.com> References: <1440415228-8006-1-git-send-email-haokexin@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 945 Lines: 33 For some archs (such as powerpc) would want to invoke jump_label_init() in a much earlier stage. So check static_key_initialized in order to make sure this function run only once. Signed-off-by: Kevin Hao --- v2: No change. kernel/jump_label.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/jump_label.c b/kernel/jump_label.c index f7dd15d537f9..cfc7d7b65432 100644 --- a/kernel/jump_label.c +++ b/kernel/jump_label.c @@ -205,6 +205,9 @@ void __init jump_label_init(void) struct static_key *key = NULL; struct jump_entry *iter; + if (static_key_initialized) + return; + jump_label_lock(); jump_label_sort_entries(iter_start, iter_stop); -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/