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From: Christopher Covington <cov@codeaurora.org>
To: Will Deacon <will.deacon@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-arm-msm@vger.kernel.org,
	Christopher Covington <cov@codeaurora.org>
Subject: [PATCH v2] arm64: Fix task tracing
Date: Tue,  9 Apr 2013 08:33:34 -0400	[thread overview]
Message-ID: <1365510814-21343-1-git-send-email-cov@codeaurora.org> (raw)
In-Reply-To: <20130408153132.GQ17476@mudshark.cambridge.arm.com>

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 <cov@codeaurora.org>
---
 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.

WARNING: multiple messages have this Message-ID (diff)
From: cov@codeaurora.org (Christopher Covington)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] arm64: Fix task tracing
Date: Tue,  9 Apr 2013 08:33:34 -0400	[thread overview]
Message-ID: <1365510814-21343-1-git-send-email-cov@codeaurora.org> (raw)
In-Reply-To: <20130408153132.GQ17476@mudshark.cambridge.arm.com>

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 <cov@codeaurora.org>
---
 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.

  reply	other threads:[~2013-04-09 12:33 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-03 18:01 [PATCH] arm64: Fix task tracing Christopher Covington
2013-04-03 18:01 ` Christopher Covington
2013-04-03 18:04 ` Will Deacon
2013-04-03 18:04   ` Will Deacon
2013-04-03 18:04   ` Will Deacon
2013-04-08 14:42   ` Christopher Covington
2013-04-08 14:42     ` Christopher Covington
2013-04-08 14:42     ` Christopher Covington
2013-04-08 15:31     ` Will Deacon
2013-04-08 15:31       ` Will Deacon
2013-04-08 15:31       ` Will Deacon
2013-04-09 12:33       ` Christopher Covington [this message]
2013-04-09 12:33         ` [PATCH v2] " Christopher Covington
2013-04-10 11:41         ` Will Deacon
2013-04-10 11:41           ` Will Deacon
2013-04-10 11:41           ` Will Deacon
2013-04-10 13:12           ` Christopher Covington
2013-04-10 13:12             ` Christopher Covington
2013-04-10 13:12             ` Christopher Covington
2013-04-15 10:11         ` Catalin Marinas
2013-04-15 10:11           ` Catalin Marinas
2013-04-15 10:11           ` Catalin Marinas
2013-04-15 10:45           ` Will Deacon
2013-04-15 10:45             ` Will Deacon
2013-04-15 10:45             ` Will Deacon
2013-04-15 10:58             ` Catalin Marinas
2013-04-15 10:58               ` Catalin Marinas
2013-04-15 10:58               ` Catalin Marinas
2013-04-15 11:43               ` Catalin Marinas
2013-04-15 11:43                 ` Catalin Marinas
2013-04-15 11:43                 ` Catalin Marinas
2013-04-15 13:09                 ` Christopher Covington
2013-04-15 13:09                   ` Christopher Covington
2013-04-15 13:09                   ` Christopher Covington
2013-04-15 15:23                   ` Catalin Marinas
2013-04-15 15:23                     ` Catalin Marinas
2013-04-15 15:23                     ` Catalin Marinas
2013-04-15 13:19                 ` Will Deacon
2013-04-15 13:19                   ` Will Deacon
2013-04-15 13:19                   ` Will Deacon

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