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.
next prev parent reply other threads:[~2013-04-09 12:33 UTC|newest]
Thread overview: 28+ 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
2013-04-08 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
2013-04-09 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 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 10:45 ` 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 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 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
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