Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936835Ab3DIMd7 (ORCPT ); Tue, 9 Apr 2013 08:33:59 -0400 Received: from wolverine02.qualcomm.com ([199.106.114.251]:15765 "EHLO wolverine02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935438Ab3DIMd6 (ORCPT ); Tue, 9 Apr 2013 08:33:58 -0400 X-IronPort-AV: E=Sophos;i="4.87,438,1363158000"; d="scan'208";a="37011008" From: Christopher Covington To: Will Deacon Cc: Catalin Marinas , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, Christopher Covington Subject: [PATCH v2] arm64: Fix task tracing Date: Tue, 9 Apr 2013 08:33:34 -0400 Message-Id: <1365510814-21343-1-git-send-email-cov@codeaurora.org> X-Mailer: git-send-email 1.8.2 In-Reply-To: <20130408153132.GQ17476@mudshark.cambridge.arm.com> References: <20130408153132.GQ17476@mudshark.cambridge.arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1052 Lines: 31 For accurate accounting pass contextidr_thread_switch the prev task pointer, since cpu_switch_to has at that point changed the the stack pointer. Signed-off-by: Christopher Covington --- arch/arm64/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 0337cdb..a49b25a 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -315,7 +315,7 @@ struct task_struct *__switch_to(struct task_struct *prev, /* the actual thread switch */ last = cpu_switch_to(prev, next); - contextidr_thread_switch(next); + contextidr_thread_switch(prev); return last; } -- Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by the Linux Foundation. -- 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/