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From: Peter Zijlstra <peterz@infradead.org>
To: mingo@kernel.org, linux-kernel@vger.kernel.org
Cc: will.deacon@arm.com, linux@arm.linux.org.uk, ralf@linux-mips.org,
	egtvedt@samfundet.no, michael@amarulasolutions.com,
	cmetcalf@ezchip.com, peterz@infradead.org
Subject: [RFC][PATCH 3/7] avr32: Remove finish_arch_switch()
Date: Wed, 29 Jul 2015 21:08:51 +0200	[thread overview]
Message-ID: <20150729191659.847539750@infradead.org> (raw)
In-Reply-To: <20150729190848.678796654@infradead.org>

[-- Attachment #1: peterz-avr32-finish_arch_switch.patch --]
[-- Type: text/plain, Size: 1016 bytes --]

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)



  parent reply	other threads:[~2015-07-29 19:21 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-29 19:08 [RFC][PATCH 0/7] sched: " Peter Zijlstra
2015-07-29 19:08 ` [RFC][PATCH 1/7] arm: Remove finish_arch_switch Peter Zijlstra
2015-08-04  7:39   ` Ingo Molnar
2015-08-04  8:26     ` Russell King - ARM Linux
2015-08-04  8:32       ` Will Deacon
2015-07-29 19:08 ` [RFC][PATCH 2/7] MIPS: Get rid of finish_arch_switch() Peter Zijlstra
2015-07-29 19:08 ` Peter Zijlstra [this message]
2015-07-30  5:40   ` [RFC][PATCH 3/7] avr32: Remove finish_arch_switch() Hans-Christian Egtvedt
2015-07-29 19:08 ` [RFC][PATCH 4/7] score: " Peter Zijlstra
2015-07-29 19:08 ` [RFC][PATCH 5/7] sh: Fold finish_arch_switch() into switch_to() Peter Zijlstra
2015-07-29 19:08 ` [RFC][PATCH 6/7] Remove finish_arch_switch Peter Zijlstra
2015-07-29 19:08 ` [RFC][PATCH 7/7] sched: Remove finish_arch_switch() Peter Zijlstra
2015-07-30  9:50 ` [RFC][PATCH 0/7] " Peter Zijlstra
2015-07-31  8:51   ` Ingo Molnar

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