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Commit 4cefebb1 authored by Michael Neuling's avatar Michael Neuling Committed by Paul Mackerras
Browse files

[POWERPC] Fix stolen time for SMT without LPAR 



For POWERPC, stolen time accounts for cycles lost to the hypervisor or
PURR cycles attributed to the other SMT thread.  Hence, when a PURR is
available, we should still calculate stolen time, irrespective of being
virtualised.

Signed-off-by: default avatarMichael Neuling <mikey@neuling.org>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent bb807e69

arch/powerpc/kernel/time.c

+1 −1
Original line number Diff line number Diff line
@@ -214,7 +214,6 @@ static void account_process_time(struct pt_regs *regs) 
 	run_posix_cpu_timers(current);

}



#ifdef CONFIG_PPC_SPLPAR

/*

 * Stuff for accounting stolen time.

 */
@@ -279,6 +278,7 @@ void calculate_steal_time(void) 
	pme->purr = purr;

}



#ifdef CONFIG_PPC_SPLPAR

/*

 * Must be called before the cpu is added to the online map when

 * a cpu is being brought up at runtime.

include/asm-powerpc/time.h

+1 −1
Original line number Diff line number Diff line
@@ -232,7 +232,7 @@ extern void account_process_vtime(struct task_struct *tsk); 
#define account_process_vtime(tsk)		do { } while (0)

#endif



#if defined(CONFIG_VIRT_CPU_ACCOUNTING) && defined(CONFIG_PPC_SPLPAR)

#if defined(CONFIG_VIRT_CPU_ACCOUNTING)

extern void calculate_steal_time(void);

extern void snapshot_timebases(void);

#else