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authorFrederic Weisbecker <fweisbec@gmail.com>2012-11-14 00:24:25 +0100
committerFrederic Weisbecker <fweisbec@gmail.com>2012-11-19 16:41:32 +0100
commite3942ba04052364d3c6454103362cafd87456010 (patch)
tree31e5cd4013fd140cb3e50ad6147382798bc88631 /arch/s390/include
parentbcebdf846522056a84ba0b0cba5f5413868c9394 (diff)
downloadblackbird-op-linux-e3942ba04052364d3c6454103362cafd87456010.tar.gz
blackbird-op-linux-e3942ba04052364d3c6454103362cafd87456010.zip
vtime: Consolidate a bit the ctx switch code
On ia64 and powerpc, vtime context switch only consists in flushing system and user pending time, plus a few arch housekeeping. Consolidate that into a generic implementation. s390 is a special case because pending user and system time accounting there is hard to dissociate. So it's keeping its own implementation. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Reviewed-by: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch/s390/include')
-rw-r--r--arch/s390/include/asm/cputime.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h
index 023d5ae24482..d2ff41370c0c 100644
--- a/arch/s390/include/asm/cputime.h
+++ b/arch/s390/include/asm/cputime.h
@@ -14,6 +14,7 @@
#define __ARCH_HAS_VTIME_ACCOUNT
+#define __ARCH_HAS_VTIME_TASK_SWITCH
/* We want to use full resolution of the CPU timer: 2**-12 micro-seconds. */
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