[PATCH v2] arm64: Fix task tracing

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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@xxxxxxxxxxxxxx>
---
 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-arm-msm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [Linux for Sparc]     [IETF Annouce]     [Security]     [Bugtraq]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux