Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:
 "The main changes in this (fairly busy) cycle were:

   - There was a class of scheduler bugs related to forgetting to update
     the rq-clock timestamp which can cause weird and hard to debug
     problems, so there's a new debug facility for this: which uncovered
     a whole lot of bugs which convinced us that we want to keep the
     debug facility.

     (Peter Zijlstra, Matt Fleming)

   - Various cputime related updates: eliminate cputime and use u64
     nanoseconds directly, simplify and improve the arch interfaces,
     implement delayed accounting more widely, etc. - (Frederic
     Weisbecker)

   - Move code around for better structure plus cleanups (Ingo Molnar)

   - Move IO schedule accounting deeper into the scheduler plus related
     changes to improve the situation (Tejun Heo)

   - ... plus a round of sched/rt and sched/deadline fixes, plus other
     fixes, updats and cleanups"

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (85 commits)
  sched/core: Remove unlikely() annotation from sched_move_task()
  sched/autogroup: Rename auto_group.[ch] to autogroup.[ch]
  sched/topology: Split out scheduler topology code from core.c into topology.c
  sched/core: Remove unnecessary #include headers
  sched/rq_clock: Consolidate the ordering of the rq_clock methods
  delayacct: Include <uapi/linux/taskstats.h>
  sched/core: Clean up comments
  sched/rt: Show the 'sched_rr_timeslice' SCHED_RR timeslice tuning knob in milliseconds
  sched/clock: Add dummy clear_sched_clock_stable() stub function
  sched/cputime: Remove generic asm headers
  sched/cputime: Remove unused nsec_to_cputime()
  s390, sched/cputime: Remove unused cputime definitions
  powerpc, sched/cputime: Remove unused cputime definitions
  s390, sched/cputime: Make arch_cpu_idle_time() to return nsecs
  ia64, sched/cputime: Remove unused cputime definitions
  ia64: Convert vtime to use nsec units directly
  ia64, sched/cputime: Move the nsecs based cputime headers to the last arch using it
  sched/cputime: Remove jiffies based cputime
  sched/cputime, vtime: Return nsecs instead of cputime_t to account
  sched/cputime: Complete nsec conversion of tick based accounting
  ...

3 files changed, 12 insertions, 180 deletions

diff --git a/arch/powerpc/include/asm/accounting.h b/arch/powerpc/include/asm/accounting.h
index c133246df467..3abcf98ed2e0 100644
--- a/arch/powerpc/include/asm/accounting.h
+++ b/arch/powerpc/include/asm/accounting.h
@@ -12,9 +12,17 @@
 
 /* Stuff for accurate time accounting */
 struct cpu_accounting_data {
-	unsigned long user_time;	/* accumulated usermode TB ticks */
-	unsigned long system_time;	/* accumulated system TB ticks */
-	unsigned long user_time_scaled;	/* accumulated usermode SPURR ticks */
+	/* Accumulated cputime values to flush on ticks*/
+	unsigned long utime;
+	unsigned long stime;
+	unsigned long utime_scaled;
+	unsigned long stime_scaled;
+	unsigned long gtime;
+	unsigned long hardirq_time;
+	unsigned long softirq_time;
+	unsigned long steal_time;
+	unsigned long idle_time;
+	/* Internal counters */
 	unsigned long starttime;	/* TB value snapshot */
 	unsigned long starttime_user;	/* TB value on exit to usermode */
 	unsigned long startspurr;	/* SPURR value snapshot */
diff --git a/arch/powerpc/include/asm/cputime.h b/arch/powerpc/include/asm/cputime.h
index aa2e6a34b872..99b541865d8d 100644
--- a/arch/powerpc/include/asm/cputime.h
+++ b/arch/powerpc/include/asm/cputime.h
@@ -16,12 +16,7 @@
 #ifndef __POWERPC_CPUTIME_H
 #define __POWERPC_CPUTIME_H
 
-#ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
-#include <asm-generic/cputime.h>
-#ifdef __KERNEL__
-static inline void setup_cputime_one_jiffy(void) { }
-#endif
-#else
+#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
 
 #include <linux/types.h>
 #include <linux/time.h>
@@ -36,65 +31,6 @@ typedef u64 __nocast cputime64_t;
 #define cmpxchg_cputime(ptr, old, new) cmpxchg(ptr, old, new)
 
 #ifdef __KERNEL__
-
-/*
- * One jiffy in timebase units computed during initialization
- */
-extern cputime_t cputime_one_jiffy;
-
-/*
- * Convert cputime <-> jiffies
- */
-extern u64 __cputime_jiffies_factor;
-
-static inline unsigned long cputime_to_jiffies(const cputime_t ct)
-{
-	return mulhdu((__force u64) ct, __cputime_jiffies_factor);
-}
-
-static inline cputime_t jiffies_to_cputime(const unsigned long jif)
-{
-	u64 ct;
-	unsigned long sec;
-
-	/* have to be a little careful about overflow */
-	ct = jif % HZ;
-	sec = jif / HZ;
-	if (ct) {
-		ct *= tb_ticks_per_sec;
-		do_div(ct, HZ);
-	}
-	if (sec)
-		ct += (cputime_t) sec * tb_ticks_per_sec;
-	return (__force cputime_t) ct;
-}
-
-static inline void setup_cputime_one_jiffy(void)
-{
-	cputime_one_jiffy = jiffies_to_cputime(1);
-}
-
-static inline cputime64_t jiffies64_to_cputime64(const u64 jif)
-{
-	u64 ct;
-	u64 sec = jif;
-
-	/* have to be a little careful about overflow */
-	ct = do_div(sec, HZ);
-	if (ct) {
-		ct *= tb_ticks_per_sec;
-		do_div(ct, HZ);
-	}
-	if (sec)
-		ct += (u64) sec * tb_ticks_per_sec;
-	return (__force cputime64_t) ct;
-}
-
-static inline u64 cputime64_to_jiffies64(const cputime_t ct)
-{
-	return mulhdu((__force u64) ct, __cputime_jiffies_factor);
-}
-
 /*
  * Convert cputime <-> microseconds
  */
@@ -105,117 +41,6 @@ static inline unsigned long cputime_to_usecs(const cputime_t ct)
 	return mulhdu((__force u64) ct, __cputime_usec_factor);
 }
 
-static inline cputime_t usecs_to_cputime(const unsigned long us)
-{
-	u64 ct;
-	unsigned long sec;
-
-	/* have to be a little careful about overflow */
-	ct = us % 1000000;
-	sec = us / 1000000;
-	if (ct) {
-		ct *= tb_ticks_per_sec;
-		do_div(ct, 1000000);
-	}
-	if (sec)
-		ct += (cputime_t) sec * tb_ticks_per_sec;
-	return (__force cputime_t) ct;
-}
-
-#define usecs_to_cputime64(us)		usecs_to_cputime(us)
-
-/*
- * Convert cputime <-> seconds
- */
-extern u64 __cputime_sec_factor;
-
-static inline unsigned long cputime_to_secs(const cputime_t ct)
-{
-	return mulhdu((__force u64) ct, __cputime_sec_factor);
-}
-
-static inline cputime_t secs_to_cputime(const unsigned long sec)
-{
-	return (__force cputime_t)((u64) sec * tb_ticks_per_sec);
-}
-
-/*
- * Convert cputime <-> timespec
- */
-static inline void cputime_to_timespec(const cputime_t ct, struct timespec *p)
-{
-	u64 x = (__force u64) ct;
-	unsigned int frac;
-
-	frac = do_div(x, tb_ticks_per_sec);
-	p->tv_sec = x;
-	x = (u64) frac * 1000000000;
-	do_div(x, tb_ticks_per_sec);
-	p->tv_nsec = x;
-}
-
-static inline cputime_t timespec_to_cputime(const struct timespec *p)
-{
-	u64 ct;
-
-	ct = (u64) p->tv_nsec * tb_ticks_per_sec;
-	do_div(ct, 1000000000);
-	return (__force cputime_t)(ct + (u64) p->tv_sec * tb_ticks_per_sec);
-}
-
-/*
- * Convert cputime <-> timeval
- */
-static inline void cputime_to_timeval(const cputime_t ct, struct timeval *p)
-{
-	u64 x = (__force u64) ct;
-	unsigned int frac;
-
-	frac = do_div(x, tb_ticks_per_sec);
-	p->tv_sec = x;
-	x = (u64) frac * 1000000;
-	do_div(x, tb_ticks_per_sec);
-	p->tv_usec = x;
-}
-
-static inline cputime_t timeval_to_cputime(const struct timeval *p)
-{
-	u64 ct;
-
-	ct = (u64) p->tv_usec * tb_ticks_per_sec;
-	do_div(ct, 1000000);
-	return (__force cputime_t)(ct + (u64) p->tv_sec * tb_ticks_per_sec);
-}
-
-/*
- * Convert cputime <-> clock_t (units of 1/USER_HZ seconds)
- */
-extern u64 __cputime_clockt_factor;
-
-static inline unsigned long cputime_to_clock_t(const cputime_t ct)
-{
-	return mulhdu((__force u64) ct, __cputime_clockt_factor);
-}
-
-static inline cputime_t clock_t_to_cputime(const unsigned long clk)
-{
-	u64 ct;
-	unsigned long sec;
-
-	/* have to be a little careful about overflow */
-	ct = clk % USER_HZ;
-	sec = clk / USER_HZ;
-	if (ct) {
-		ct *= tb_ticks_per_sec;
-		do_div(ct, USER_HZ);
-	}
-	if (sec)
-		ct += (u64) sec * tb_ticks_per_sec;
-	return (__force cputime_t) ct;
-}
-
-#define cputime64_to_clock_t(ct)	cputime_to_clock_t((cputime_t)(ct))
-
 /*
  * PPC64 uses PACA which is task independent for storing accounting data while
  * PPC32 uses struct thread_info, therefore at task switch the accounting data
diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index 6a6792bb39fb..708c3e592eeb 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -187,7 +187,6 @@ struct paca_struct {
 
 	/* Stuff for accurate time accounting */
 	struct cpu_accounting_data accounting;
-	u64 stolen_time;		/* TB ticks taken by hypervisor */
 	u64 dtl_ridx;			/* read index in dispatch log */
 	struct dtl_entry *dtl_curr;	/* pointer corresponding to dtl_ridx */