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Groups > linux.kernel > #1195448

[RFC][PATCH 3/7] avr32: Remove finish_arch_switch()

From Peter Zijlstra <peterz@infradead.org>
Newsgroups linux.kernel
Subject [RFC][PATCH 3/7] avr32: Remove finish_arch_switch()
Date 2015-07-29 21:30 +0200
Message-ID <pRFd8-AH-17@gated-at.bofh.it> (permalink)
References <pRFd7-AH-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Fold the tracing hook into switch_to() in order to remove
finish_arch_switch().

Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 arch/avr32/include/asm/switch_to.h |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

--- a/arch/avr32/include/asm/switch_to.h
+++ b/arch/avr32/include/asm/switch_to.h
@@ -15,11 +15,13 @@
  */
 #ifdef CONFIG_OWNERSHIP_TRACE
 #include <asm/ocd.h>
-#define finish_arch_switch(prev)			\
+#define ocd_switch(prev, next)				\
 	do {						\
 		ocd_write(PID, prev->pid);		\
-		ocd_write(PID, current->pid);		\
+		ocd_write(PID, next->pid);		\
 	} while(0)
+#else
+#define ocd_switch(prev, next)
 #endif
 
 /*
@@ -38,6 +40,7 @@ extern struct task_struct *__switch_to(s
 				       struct cpu_context *);
 #define switch_to(prev, next, last)					\
 	do {								\
+		ocd_switch(prev, next);					\
 		last = __switch_to(prev, &prev->thread.cpu_context + 1,	\
 				   &next->thread.cpu_context);		\
 	} while (0)


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Thread

[RFC][PATCH 0/7] sched: Remove finish_arch_switch() Peter Zijlstra <peterz@infradead.org> - 2015-07-29 21:30 +0200
  [RFC][PATCH 3/7] avr32: Remove finish_arch_switch() Peter Zijlstra <peterz@infradead.org> - 2015-07-29 21:30 +0200
    Re: [RFC][PATCH 3/7] avr32: Remove finish_arch_switch() Hans-Christian Egtvedt <egtvedt@samfundet.no> - 2015-07-30 07:50 +0200
  [RFC][PATCH 4/7] score: Remove finish_arch_switch() Peter Zijlstra <peterz@infradead.org> - 2015-07-29 21:30 +0200
  [RFC][PATCH 7/7] sched: Remove finish_arch_switch() Peter Zijlstra <peterz@infradead.org> - 2015-07-29 21:30 +0200
  Re: [RFC][PATCH 0/7] sched: Remove finish_arch_switch() Peter Zijlstra <peterz@infradead.org> - 2015-07-30 12:00 +0200

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