perf: Do the big rename: Performance Counters -> Performance Events

Bye-bye Performance Counters, welcome Performance Events!

In the past few months the perfcounters subsystem has grown out its
initial role of counting hardware events, and has become (and is
becoming) a much broader generic event enumeration, reporting, logging,
monitoring, analysis facility.

Naming its core object 'perf_counter' and naming the subsystem
'perfcounters' has become more and more of a misnomer. With pending
code like hw-breakpoints support the 'counter' name is less and
less appropriate.

All in one, we've decided to rename the subsystem to 'performance
events' and to propagate this rename through all fields, variables
and API names. (in an ABI compatible fashion)

The word 'event' is also a bit shorter than 'counter' - which makes
it slightly more convenient to write/handle as well.

Thanks goes to Stephane Eranian who first observed this misnomer and
suggested a rename.

User-space tooling and ABI compatibility is not affected - this patch
should be function-invariant. (Also, defconfigs were not touched to
keep the size down.)

This patch has been generated via the following script:

  FILES=$(find * -type f | grep -vE 'oprofile|[^K]config')

  sed -i \
    -e 's/PERF_EVENT_/PERF_RECORD_/g' \
    -e 's/PERF_COUNTER/PERF_EVENT/g' \
    -e 's/perf_counter/perf_event/g' \
    -e 's/nb_counters/nb_events/g' \
    -e 's/swcounter/swevent/g' \
    -e 's/tpcounter_event/tp_event/g' \
    $FILES

  for N in $(find . -name perf_counter.[ch]); do
    M=$(echo $N | sed 's/perf_counter/perf_event/g')
    mv $N $M
  done

  FILES=$(find . -name perf_event.*)

  sed -i \
    -e 's/COUNTER_MASK/REG_MASK/g' \
    -e 's/COUNTER/EVENT/g' \
    -e 's/\<event\>/event_id/g' \
    -e 's/counter/event/g' \
    -e 's/Counter/Event/g' \
    $FILES

... to keep it as correct as possible. This script can also be
used by anyone who has pending perfcounters patches - it converts
a Linux kernel tree over to the new naming. We tried to time this
change to the point in time where the amount of pending patches
is the smallest: the end of the merge window.

Namespace clashes were fixed up in a preparatory patch - and some
stylistic fallout will be fixed up in a subsequent patch.

( NOTE: 'counters' are still the proper terminology when we deal
  with hardware registers - and these sed scripts are a bit
  over-eager in renaming them. I've undone some of that, but
  in case there's something left where 'counter' would be
  better than 'event' we can undo that on an individual basis
  instead of touching an otherwise nicely automated patch. )

Suggested-by: Stephane Eranian <eranian@google.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Paul Mackerras <paulus@samba.org>
Reviewed-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <linux-arch@vger.kernel.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/arm/include/asm/unistd.h

@@ -390,7 +390,7 @@
 #define __NR_preadv			(__NR_SYSCALL_BASE+361)
 #define __NR_pwritev			(__NR_SYSCALL_BASE+362)
 #define __NR_rt_tgsigqueueinfo		(__NR_SYSCALL_BASE+363)
-#define __NR_perf_counter_open		(__NR_SYSCALL_BASE+364)
+#define __NR_perf_event_open		(__NR_SYSCALL_BASE+364)
 
 /*
  * The following SWIs are ARM private.

arch/arm/kernel/calls.S

@@ -373,7 +373,7 @@
 		CALL(sys_preadv)
 		CALL(sys_pwritev)
 		CALL(sys_rt_tgsigqueueinfo)
-		CALL(sys_perf_counter_open)
+		CALL(sys_perf_event_open)
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted

arch/blackfin/include/asm/unistd.h

@@ -381,7 +381,7 @@
 #define __NR_preadv		366
 #define __NR_pwritev		367
 #define __NR_rt_tgsigqueueinfo	368
-#define __NR_perf_counter_open	369
+#define __NR_perf_event_open	369
 
 #define __NR_syscall		370
 #define NR_syscalls		__NR_syscall

arch/blackfin/mach-common/entry.S

@@ -1620,7 +1620,7 @@ ENTRY(_sys_call_table)
 	.long _sys_preadv
 	.long _sys_pwritev
 	.long _sys_rt_tgsigqueueinfo
-	.long _sys_perf_counter_open
+	.long _sys_perf_event_open
 
 	.rept NR_syscalls-(.-_sys_call_table)/4
 	.long _sys_ni_syscall

arch/frv/Kconfig

@@ -7,7 +7,7 @@ config FRV
 	default y
 	select HAVE_IDE
 	select HAVE_ARCH_TRACEHOOK
-	select HAVE_PERF_COUNTERS
+	select HAVE_PERF_EVENTS
 
 config ZONE_DMA
 	bool

arch/frv/include/asm/perf_counter.h → arch/frv/include/asm/perf_event.h

@@ -1,4 +1,4 @@
-/* FRV performance counter support
+/* FRV performance event support
  *
  * Copyright (C) 2009 Red Hat, Inc. All Rights Reserved.
  * Written by David Howells (dhowells@redhat.com)
@@ -9,9 +9,9 @@
  * 2 of the Licence, or (at your option) any later version.
  */
 
-#ifndef _ASM_PERF_COUNTER_H
-#define _ASM_PERF_COUNTER_H
+#ifndef _ASM_PERF_EVENT_H
+#define _ASM_PERF_EVENT_H
 
-#define PERF_COUNTER_INDEX_OFFSET	0
+#define PERF_EVENT_INDEX_OFFSET	0
 
-#endif /* _ASM_PERF_COUNTER_H */
+#endif /* _ASM_PERF_EVENT_H */

arch/frv/include/asm/unistd.h

@@ -342,7 +342,7 @@
 #define __NR_preadv		333
 #define __NR_pwritev		334
 #define __NR_rt_tgsigqueueinfo	335
-#define __NR_perf_counter_open	336
+#define __NR_perf_event_open	336
 
 #ifdef __KERNEL__
 

arch/frv/kernel/entry.S

@@ -1525,6 +1525,6 @@ sys_call_table:
 	.long sys_preadv
 	.long sys_pwritev
 	.long sys_rt_tgsigqueueinfo	/* 335 */
-	.long sys_perf_counter_open
+	.long sys_perf_event_open
 
 syscall_table_size = (. - sys_call_table)

arch/frv/lib/Makefile

@@ -5,4 +5,4 @@
 lib-y := \
 	__ashldi3.o __lshrdi3.o __muldi3.o __ashrdi3.o __negdi2.o __ucmpdi2.o \
 	checksum.o memcpy.o memset.o atomic-ops.o atomic64-ops.o \
-	outsl_ns.o outsl_sw.o insl_ns.o insl_sw.o cache.o perf_counter.o
+	outsl_ns.o outsl_sw.o insl_ns.o insl_sw.o cache.o perf_event.o

arch/frv/lib/perf_counter.c → arch/frv/lib/perf_event.c

@@ -1,4 +1,4 @@
-/* Performance counter handling
+/* Performance event handling
  *
  * Copyright (C) 2009 Red Hat, Inc. All Rights Reserved.
  * Written by David Howells (dhowells@redhat.com)
@@ -9,11 +9,11 @@
  * 2 of the Licence, or (at your option) any later version.
  */
 
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 
 /*
- * mark the performance counter as pending
+ * mark the performance event as pending
  */
-void set_perf_counter_pending(void)
+void set_perf_event_pending(void)
 {
 }

arch/m68k/include/asm/unistd.h

@@ -335,7 +335,7 @@
 #define __NR_preadv		329
 #define __NR_pwritev		330
 #define __NR_rt_tgsigqueueinfo	331
-#define __NR_perf_counter_open	332
+#define __NR_perf_event_open	332
 
 #ifdef __KERNEL__
 

arch/m68k/kernel/entry.S

@@ -756,5 +756,5 @@ sys_call_table:
 	.long sys_preadv
 	.long sys_pwritev		/* 330 */
 	.long sys_rt_tgsigqueueinfo
-	.long sys_perf_counter_open
+	.long sys_perf_event_open
 

arch/m68knommu/kernel/syscalltable.S

@@ -350,7 +350,7 @@ ENTRY(sys_call_table)
 	.long sys_preadv
 	.long sys_pwritev		/* 330 */
 	.long sys_rt_tgsigqueueinfo
-	.long sys_perf_counter_open
+	.long sys_perf_event_open
 
 	.rept NR_syscalls-(.-sys_call_table)/4
 		.long sys_ni_syscall

arch/microblaze/include/asm/unistd.h

@@ -381,7 +381,7 @@
 #define __NR_preadv		363 /* new */
 #define __NR_pwritev		364 /* new */
 #define __NR_rt_tgsigqueueinfo	365 /* new */
-#define __NR_perf_counter_open	366 /* new */
+#define __NR_perf_event_open	366 /* new */
 
 #define __NR_syscalls		367
 

arch/microblaze/kernel/syscall_table.S

@@ -370,4 +370,4 @@ ENTRY(sys_call_table)
 	.long sys_ni_syscall
 	.long sys_ni_syscall
 	.long sys_rt_tgsigqueueinfo	/* 365 */
-	.long sys_perf_counter_open
+	.long sys_perf_event_open

arch/mips/include/asm/unistd.h

@@ -353,7 +353,7 @@
 #define __NR_preadv			(__NR_Linux + 330)
 #define __NR_pwritev			(__NR_Linux + 331)
 #define __NR_rt_tgsigqueueinfo		(__NR_Linux + 332)
-#define __NR_perf_counter_open		(__NR_Linux + 333)
+#define __NR_perf_event_open		(__NR_Linux + 333)
 #define __NR_accept4			(__NR_Linux + 334)
 
 /*
@@ -664,7 +664,7 @@
 #define __NR_preadv			(__NR_Linux + 289)
 #define __NR_pwritev			(__NR_Linux + 290)
 #define __NR_rt_tgsigqueueinfo		(__NR_Linux + 291)
-#define __NR_perf_counter_open		(__NR_Linux + 292)
+#define __NR_perf_event_open		(__NR_Linux + 292)
 #define __NR_accept4			(__NR_Linux + 293)
 
 /*
@@ -979,7 +979,7 @@
 #define __NR_preadv			(__NR_Linux + 293)
 #define __NR_pwritev			(__NR_Linux + 294)
 #define __NR_rt_tgsigqueueinfo		(__NR_Linux + 295)
-#define __NR_perf_counter_open		(__NR_Linux + 296)
+#define __NR_perf_event_open		(__NR_Linux + 296)
 #define __NR_accept4			(__NR_Linux + 297)
 
 /*

arch/mips/kernel/scall32-o32.S

@@ -581,7 +581,7 @@ einval:	li	v0, -ENOSYS
 	sys	sys_preadv		6	/* 4330 */
 	sys	sys_pwritev		6
 	sys	sys_rt_tgsigqueueinfo	4
-	sys	sys_perf_counter_open	5
+	sys	sys_perf_event_open	5
 	sys	sys_accept4		4
 	.endm
 

arch/mips/kernel/scall64-64.S

@@ -418,6 +418,6 @@ sys_call_table:
 	PTR	sys_preadv
 	PTR	sys_pwritev			/* 5390 */
 	PTR	sys_rt_tgsigqueueinfo
-	PTR	sys_perf_counter_open
+	PTR	sys_perf_event_open
 	PTR	sys_accept4
 	.size	sys_call_table,.-sys_call_table

arch/mips/kernel/scall64-n32.S

@@ -416,6 +416,6 @@ EXPORT(sysn32_call_table)
 	PTR	sys_preadv
 	PTR	sys_pwritev
 	PTR	compat_sys_rt_tgsigqueueinfo	/* 5295 */
-	PTR	sys_perf_counter_open
+	PTR	sys_perf_event_open
 	PTR	sys_accept4
 	.size	sysn32_call_table,.-sysn32_call_table

arch/mips/kernel/scall64-o32.S

@@ -536,6 +536,6 @@ sys_call_table:
 	PTR	compat_sys_preadv		/* 4330 */
 	PTR	compat_sys_pwritev
 	PTR	compat_sys_rt_tgsigqueueinfo
-	PTR	sys_perf_counter_open
+	PTR	sys_perf_event_open
 	PTR	sys_accept4
 	.size	sys_call_table,.-sys_call_table

arch/mn10300/include/asm/unistd.h

@@ -347,7 +347,7 @@
 #define __NR_preadv		334
 #define __NR_pwritev		335
 #define __NR_rt_tgsigqueueinfo	336
-#define __NR_perf_counter_open	337
+#define __NR_perf_event_open	337
 
 #ifdef __KERNEL__
 

arch/mn10300/kernel/entry.S

@@ -723,7 +723,7 @@ ENTRY(sys_call_table)
 	.long sys_preadv
 	.long sys_pwritev		/* 335 */
 	.long sys_rt_tgsigqueueinfo
-	.long sys_perf_counter_open
+	.long sys_perf_event_open
 
 
 nr_syscalls=(.-sys_call_table)/4

arch/parisc/Kconfig

@@ -16,7 +16,7 @@ config PARISC
 	select RTC_DRV_GENERIC
 	select INIT_ALL_POSSIBLE
 	select BUG
-	select HAVE_PERF_COUNTERS
+	select HAVE_PERF_EVENTS
 	select GENERIC_ATOMIC64 if !64BIT
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used

arch/parisc/include/asm/perf_counter.h

@@ -1,7 +0,0 @@
-#ifndef __ASM_PARISC_PERF_COUNTER_H
-#define __ASM_PARISC_PERF_COUNTER_H
-
-/* parisc only supports software counters through this interface. */
-static inline void set_perf_counter_pending(void) { }
-
-#endif /* __ASM_PARISC_PERF_COUNTER_H */

arch/parisc/include/asm/perf_event.h

@@ -0,0 +1,7 @@
+#ifndef __ASM_PARISC_PERF_EVENT_H
+#define __ASM_PARISC_PERF_EVENT_H
+
+/* parisc only supports software events through this interface. */
+static inline void set_perf_event_pending(void) { }
+
+#endif /* __ASM_PARISC_PERF_EVENT_H */

arch/parisc/include/asm/unistd.h

@@ -810,9 +810,9 @@
 #define __NR_preadv		(__NR_Linux + 315)
 #define __NR_pwritev		(__NR_Linux + 316)
 #define __NR_rt_tgsigqueueinfo	(__NR_Linux + 317)
-#define __NR_perf_counter_open	(__NR_Linux + 318)
+#define __NR_perf_event_open	(__NR_Linux + 318)
 
-#define __NR_Linux_syscalls	(__NR_perf_counter_open + 1)
+#define __NR_Linux_syscalls	(__NR_perf_event_open + 1)
 
 
 #define __IGNORE_select		/* newselect */

arch/parisc/kernel/syscall_table.S

@@ -416,7 +416,7 @@
 	ENTRY_COMP(preadv)		/* 315 */
 	ENTRY_COMP(pwritev)
 	ENTRY_COMP(rt_tgsigqueueinfo)
-	ENTRY_SAME(perf_counter_open)
+	ENTRY_SAME(perf_event_open)
 
 	/* Nothing yet */
 

arch/powerpc/Kconfig

@@ -129,7 +129,7 @@ config PPC
 	select HAVE_OPROFILE
 	select HAVE_SYSCALL_WRAPPERS if PPC64
 	select GENERIC_ATOMIC64 if PPC32
-	select HAVE_PERF_COUNTERS
+	select HAVE_PERF_EVENTS
 
 config EARLY_PRINTK
 	bool

arch/powerpc/include/asm/hw_irq.h

@@ -135,43 +135,43 @@ static inline int irqs_disabled_flags(unsigned long flags)
  */
 struct irq_chip;
 
-#ifdef CONFIG_PERF_COUNTERS
+#ifdef CONFIG_PERF_EVENTS
 
 #ifdef CONFIG_PPC64
-static inline unsigned long test_perf_counter_pending(void)
+static inline unsigned long test_perf_event_pending(void)
 {
 	unsigned long x;
 
 	asm volatile("lbz %0,%1(13)"
 		: "=r" (x)
-		: "i" (offsetof(struct paca_struct, perf_counter_pending)));
+		: "i" (offsetof(struct paca_struct, perf_event_pending)));
 	return x;
 }
 
-static inline void set_perf_counter_pending(void)
+static inline void set_perf_event_pending(void)
 {
 	asm volatile("stb %0,%1(13)" : :
 		"r" (1),
-		"i" (offsetof(struct paca_struct, perf_counter_pending)));
+		"i" (offsetof(struct paca_struct, perf_event_pending)));
 }
 
-static inline void clear_perf_counter_pending(void)
+static inline void clear_perf_event_pending(void)
 {
 	asm volatile("stb %0,%1(13)" : :
 		"r" (0),
-		"i" (offsetof(struct paca_struct, perf_counter_pending)));
+		"i" (offsetof(struct paca_struct, perf_event_pending)));
 }
 #endif /* CONFIG_PPC64 */
 
-#else  /* CONFIG_PERF_COUNTERS */
+#else  /* CONFIG_PERF_EVENTS */
 
-static inline unsigned long test_perf_counter_pending(void)
+static inline unsigned long test_perf_event_pending(void)
 {
 	return 0;
 }
 
-static inline void clear_perf_counter_pending(void) {}
-#endif /* CONFIG_PERF_COUNTERS */
+static inline void clear_perf_event_pending(void) {}
+#endif /* CONFIG_PERF_EVENTS */
 
 #endif	/* __KERNEL__ */
 #endif	/* _ASM_POWERPC_HW_IRQ_H */

arch/powerpc/include/asm/paca.h

@@ -122,7 +122,7 @@ struct paca_struct {
 	u8 soft_enabled;		/* irq soft-enable flag */
 	u8 hard_enabled;		/* set if irqs are enabled in MSR */
 	u8 io_sync;			/* writel() needs spin_unlock sync */
-	u8 perf_counter_pending;	/* PM interrupt while soft-disabled */
+	u8 perf_event_pending;	/* PM interrupt while soft-disabled */
 
 	/* Stuff for accurate time accounting */
 	u64 user_time;			/* accumulated usermode TB ticks */

arch/powerpc/include/asm/perf_counter.h → arch/powerpc/include/asm/perf_event.h

@@ -1,5 +1,5 @@
 /*
- * Performance counter support - PowerPC-specific definitions.
+ * Performance event support - PowerPC-specific definitions.
  *
  * Copyright 2008-2009 Paul Mackerras, IBM Corporation.
  *
@@ -12,9 +12,9 @@
 
 #include <asm/hw_irq.h>
 
-#define MAX_HWCOUNTERS		8
+#define MAX_HWEVENTS		8
 #define MAX_EVENT_ALTERNATIVES	8
-#define MAX_LIMITED_HWCOUNTERS	2
+#define MAX_LIMITED_HWEVENTS	2
 
 /*
  * This struct provides the constants and functions needed to
@@ -22,18 +22,18 @@
  */
 struct power_pmu {
 	const char	*name;
-	int		n_counter;
+	int		n_event;
 	int		max_alternatives;
 	unsigned long	add_fields;
 	unsigned long	test_adder;
 	int		(*compute_mmcr)(u64 events[], int n_ev,
 				unsigned int hwc[], unsigned long mmcr[]);
-	int		(*get_constraint)(u64 event, unsigned long *mskp,
+	int		(*get_constraint)(u64 event_id, unsigned long *mskp,
 				unsigned long *valp);
-	int		(*get_alternatives)(u64 event, unsigned int flags,
+	int		(*get_alternatives)(u64 event_id, unsigned int flags,
 				u64 alt[]);
 	void		(*disable_pmc)(unsigned int pmc, unsigned long mmcr[]);
-	int		(*limited_pmc_event)(u64 event);
+	int		(*limited_pmc_event)(u64 event_id);
 	u32		flags;
 	int		n_generic;
 	int		*generic_events;
@@ -61,10 +61,10 @@ struct pt_regs;
 extern unsigned long perf_misc_flags(struct pt_regs *regs);
 extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
 
-#define PERF_COUNTER_INDEX_OFFSET	1
+#define PERF_EVENT_INDEX_OFFSET	1
 
 /*
- * Only override the default definitions in include/linux/perf_counter.h
+ * Only override the default definitions in include/linux/perf_event.h
  * if we have hardware PMU support.
  */
 #ifdef CONFIG_PPC_PERF_CTRS
@@ -73,14 +73,14 @@ extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
 
 /*
  * The power_pmu.get_constraint function returns a 32/64-bit value and
- * a 32/64-bit mask that express the constraints between this event and
+ * a 32/64-bit mask that express the constraints between this event_id and
  * other events.
  *
  * The value and mask are divided up into (non-overlapping) bitfields
  * of three different types:
  *
  * Select field: this expresses the constraint that some set of bits
- * in MMCR* needs to be set to a specific value for this event.  For a
+ * in MMCR* needs to be set to a specific value for this event_id.  For a
  * select field, the mask contains 1s in every bit of the field, and
  * the value contains a unique value for each possible setting of the
  * MMCR* bits.  The constraint checking code will ensure that two events
@@ -102,9 +102,9 @@ extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
  * possible.)  For N classes, the field is N+1 bits wide, and each class
  * is assigned one bit from the least-significant N bits.  The mask has
  * only the most-significant bit set, and the value has only the bit
- * for the event's class set.  The test_adder has the least significant
+ * for the event_id's class set.  The test_adder has the least significant
  * bit set in the field.
  *
- * If an event is not subject to the constraint expressed by a particular
+ * If an event_id is not subject to the constraint expressed by a particular
  * field, then it will have 0 in both the mask and value for that field.
  */

arch/powerpc/include/asm/systbl.h

@@ -322,7 +322,7 @@ SYSCALL_SPU(epoll_create1)
 SYSCALL_SPU(dup3)
 SYSCALL_SPU(pipe2)
 SYSCALL(inotify_init1)
-SYSCALL_SPU(perf_counter_open)
+SYSCALL_SPU(perf_event_open)
 COMPAT_SYS_SPU(preadv)
 COMPAT_SYS_SPU(pwritev)
 COMPAT_SYS(rt_tgsigqueueinfo)

arch/powerpc/include/asm/unistd.h

@@ -341,7 +341,7 @@
 #define __NR_dup3		316
 #define __NR_pipe2		317
 #define __NR_inotify_init1	318
-#define __NR_perf_counter_open	319
+#define __NR_perf_event_open	319
 #define __NR_preadv		320
 #define __NR_pwritev		321
 #define __NR_rt_tgsigqueueinfo	322

arch/powerpc/kernel/Makefile

@@ -97,7 +97,7 @@ obj64-$(CONFIG_AUDIT)		+= compat_audit.o
 
 obj-$(CONFIG_DYNAMIC_FTRACE)	+= ftrace.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)	+= ftrace.o
-obj-$(CONFIG_PPC_PERF_CTRS)	+= perf_counter.o perf_callchain.o
+obj-$(CONFIG_PPC_PERF_CTRS)	+= perf_event.o perf_callchain.o
 obj64-$(CONFIG_PPC_PERF_CTRS)	+= power4-pmu.o ppc970-pmu.o power5-pmu.o \
 				   power5+-pmu.o power6-pmu.o power7-pmu.o
 obj32-$(CONFIG_PPC_PERF_CTRS)	+= mpc7450-pmu.o

arch/powerpc/kernel/asm-offsets.c

@@ -133,7 +133,7 @@ int main(void)
 	DEFINE(PACAKMSR, offsetof(struct paca_struct, kernel_msr));
 	DEFINE(PACASOFTIRQEN, offsetof(struct paca_struct, soft_enabled));
 	DEFINE(PACAHARDIRQEN, offsetof(struct paca_struct, hard_enabled));
-	DEFINE(PACAPERFPEND, offsetof(struct paca_struct, perf_counter_pending));
+	DEFINE(PACAPERFPEND, offsetof(struct paca_struct, perf_event_pending));
 	DEFINE(PACACONTEXTID, offsetof(struct paca_struct, context.id));
 #ifdef CONFIG_PPC_MM_SLICES
 	DEFINE(PACALOWSLICESPSIZE, offsetof(struct paca_struct,

arch/powerpc/kernel/entry_64.S

@@ -556,14 +556,14 @@ ALT_FW_FTR_SECTION_END_IFCLR(FW_FEATURE_ISERIES)
 2:
 	TRACE_AND_RESTORE_IRQ(r5);
 
-#ifdef CONFIG_PERF_COUNTERS
-	/* check paca->perf_counter_pending if we're enabling ints */
+#ifdef CONFIG_PERF_EVENTS
+	/* check paca->perf_event_pending if we're enabling ints */
 	lbz	r3,PACAPERFPEND(r13)
 	and.	r3,r3,r5
 	beq	27f
-	bl	.perf_counter_do_pending
+	bl	.perf_event_do_pending
 27:
-#endif /* CONFIG_PERF_COUNTERS */
+#endif /* CONFIG_PERF_EVENTS */
 
 	/* extract EE bit and use it to restore paca->hard_enabled */
 	ld	r3,_MSR(r1)

arch/powerpc/kernel/irq.c

@@ -53,7 +53,7 @@
 #include <linux/bootmem.h>
 #include <linux/pci.h>
 #include <linux/debugfs.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -138,9 +138,9 @@ notrace void raw_local_irq_restore(unsigned long en)
 	}
 #endif /* CONFIG_PPC_STD_MMU_64 */
 
-	if (test_perf_counter_pending()) {
-		clear_perf_counter_pending();
-		perf_counter_do_pending();
+	if (test_perf_event_pending()) {
+		clear_perf_event_pending();
+		perf_event_do_pending();
 	}
 
 	/*

arch/powerpc/kernel/mpc7450-pmu.c

@@ -9,7 +9,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 #include <linux/string.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <asm/reg.h>
 #include <asm/cputable.h>
 

arch/powerpc/kernel/perf_callchain.c

@@ -10,7 +10,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/sched.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <linux/percpu.h>
 #include <linux/uaccess.h>
 #include <linux/mm.h>

arch/powerpc/kernel/power4-pmu.c

@@ -9,7 +9,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 #include <linux/kernel.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <linux/string.h>
 #include <asm/reg.h>
 #include <asm/cputable.h>

arch/powerpc/kernel/power5+-pmu.c

@@ -9,7 +9,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 #include <linux/kernel.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <linux/string.h>
 #include <asm/reg.h>
 #include <asm/cputable.h>

arch/powerpc/kernel/power5-pmu.c

@@ -9,7 +9,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 #include <linux/kernel.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <linux/string.h>
 #include <asm/reg.h>
 #include <asm/cputable.h>

arch/powerpc/kernel/power6-pmu.c

@@ -9,7 +9,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 #include <linux/kernel.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <linux/string.h>
 #include <asm/reg.h>
 #include <asm/cputable.h>

arch/powerpc/kernel/power7-pmu.c

@@ -9,7 +9,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 #include <linux/kernel.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <linux/string.h>
 #include <asm/reg.h>
 #include <asm/cputable.h>

arch/powerpc/kernel/ppc970-pmu.c

@@ -9,7 +9,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 #include <linux/string.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <asm/reg.h>
 #include <asm/cputable.h>
 

arch/powerpc/kernel/time.c

@@ -53,7 +53,7 @@
 #include <linux/posix-timers.h>
 #include <linux/irq.h>
 #include <linux/delay.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 
 #include <asm/io.h>
 #include <asm/processor.h>
@@ -527,25 +527,25 @@ void __init iSeries_time_init_early(void)
 }
 #endif /* CONFIG_PPC_ISERIES */
 
-#if defined(CONFIG_PERF_COUNTERS) && defined(CONFIG_PPC32)
-DEFINE_PER_CPU(u8, perf_counter_pending);
+#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_PPC32)
+DEFINE_PER_CPU(u8, perf_event_pending);
 
-void set_perf_counter_pending(void)
+void set_perf_event_pending(void)
 {
-	get_cpu_var(perf_counter_pending) = 1;
+	get_cpu_var(perf_event_pending) = 1;
 	set_dec(1);
-	put_cpu_var(perf_counter_pending);
+	put_cpu_var(perf_event_pending);
 }
 
-#define test_perf_counter_pending()	__get_cpu_var(perf_counter_pending)
-#define clear_perf_counter_pending()	__get_cpu_var(perf_counter_pending) = 0
+#define test_perf_event_pending()	__get_cpu_var(perf_event_pending)
+#define clear_perf_event_pending()	__get_cpu_var(perf_event_pending) = 0
 
-#else  /* CONFIG_PERF_COUNTERS && CONFIG_PPC32 */
+#else  /* CONFIG_PERF_EVENTS && CONFIG_PPC32 */
 
-#define test_perf_counter_pending()	0
-#define clear_perf_counter_pending()
+#define test_perf_event_pending()	0
+#define clear_perf_event_pending()
 
-#endif /* CONFIG_PERF_COUNTERS && CONFIG_PPC32 */
+#endif /* CONFIG_PERF_EVENTS && CONFIG_PPC32 */
 
 /*
  * For iSeries shared processors, we have to let the hypervisor
@@ -573,9 +573,9 @@ void timer_interrupt(struct pt_regs * regs)
 	set_dec(DECREMENTER_MAX);
 
 #ifdef CONFIG_PPC32
-	if (test_perf_counter_pending()) {
-		clear_perf_counter_pending();
-		perf_counter_do_pending();
+	if (test_perf_event_pending()) {
+		clear_perf_event_pending();
+		perf_event_do_pending();
 	}
 	if (atomic_read(&ppc_n_lost_interrupts) != 0)
 		do_IRQ(regs);

arch/powerpc/mm/fault.c

@@ -29,7 +29,7 @@
 #include <linux/module.h>
 #include <linux/kprobes.h>
 #include <linux/kdebug.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 
 #include <asm/firmware.h>
 #include <asm/page.h>
@@ -171,7 +171,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
 		die("Weird page fault", regs, SIGSEGV);
 	}
 
-	perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
+	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
 
 	/* When running in the kernel we expect faults to occur only to
 	 * addresses in user space.  All other faults represent errors in the
@@ -312,7 +312,7 @@ good_area:
 	}
 	if (ret & VM_FAULT_MAJOR) {
 		current->maj_flt++;
-		perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
+		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
 				     regs, address);
 #ifdef CONFIG_PPC_SMLPAR
 		if (firmware_has_feature(FW_FEATURE_CMO)) {
@@ -323,7 +323,7 @@ good_area:
 #endif
 	} else {
 		current->min_flt++;
-		perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
+		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
 				     regs, address);
 	}
 	up_read(&mm->mmap_sem);

arch/powerpc/platforms/Kconfig.cputype

@@ -280,9 +280,9 @@ config PPC_HAVE_PMU_SUPPORT
 
 config PPC_PERF_CTRS
        def_bool y
-       depends on PERF_COUNTERS && PPC_HAVE_PMU_SUPPORT
+       depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
        help
-         This enables the powerpc-specific perf_counter back-end.
+         This enables the powerpc-specific perf_event back-end.
 
 config SMP
 	depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE

arch/s390/Kconfig

@@ -94,7 +94,7 @@ config S390
 	select HAVE_KVM if 64BIT
 	select HAVE_ARCH_TRACEHOOK
 	select INIT_ALL_POSSIBLE
-	select HAVE_PERF_COUNTERS
+	select HAVE_PERF_EVENTS
 
 config SCHED_OMIT_FRAME_POINTER
 	bool

arch/s390/include/asm/perf_counter.h

@@ -1,10 +0,0 @@
-/*
- * Performance counter support - s390 specific definitions.
- *
- * Copyright 2009 Martin Schwidefsky, IBM Corporation.
- */
-
-static inline void set_perf_counter_pending(void) {}
-static inline void clear_perf_counter_pending(void) {}
-
-#define PERF_COUNTER_INDEX_OFFSET 0

arch/s390/include/asm/perf_event.h

@@ -0,0 +1,10 @@
+/*
+ * Performance event support - s390 specific definitions.
+ *
+ * Copyright 2009 Martin Schwidefsky, IBM Corporation.
+ */
+
+static inline void set_perf_event_pending(void) {}
+static inline void clear_perf_event_pending(void) {}
+
+#define PERF_EVENT_INDEX_OFFSET 0

arch/s390/include/asm/unistd.h

@@ -268,7 +268,7 @@
 #define	__NR_preadv		328
 #define	__NR_pwritev		329
 #define __NR_rt_tgsigqueueinfo	330
-#define __NR_perf_counter_open	331
+#define __NR_perf_event_open	331
 #define NR_syscalls 332
 
 /* 

arch/s390/kernel/compat_wrapper.S

@@ -1832,11 +1832,11 @@ compat_sys_rt_tgsigqueueinfo_wrapper:
 	llgtr	%r5,%r5			# struct compat_siginfo *
 	jg	compat_sys_rt_tgsigqueueinfo_wrapper # branch to system call
 
-	.globl	sys_perf_counter_open_wrapper
-sys_perf_counter_open_wrapper:
-	llgtr	%r2,%r2			# const struct perf_counter_attr *
+	.globl	sys_perf_event_open_wrapper
+sys_perf_event_open_wrapper:
+	llgtr	%r2,%r2			# const struct perf_event_attr *
 	lgfr	%r3,%r3			# pid_t
 	lgfr	%r4,%r4			# int
 	lgfr	%r5,%r5			# int
 	llgfr	%r6,%r6			# unsigned long
-	jg	sys_perf_counter_open	# branch to system call
+	jg	sys_perf_event_open	# branch to system call

arch/s390/kernel/syscalls.S

@@ -339,4 +339,4 @@ SYSCALL(sys_epoll_create1,sys_epoll_create1,sys_epoll_create1_wrapper)
 SYSCALL(sys_preadv,sys_preadv,compat_sys_preadv_wrapper)
 SYSCALL(sys_pwritev,sys_pwritev,compat_sys_pwritev_wrapper)
 SYSCALL(sys_rt_tgsigqueueinfo,sys_rt_tgsigqueueinfo,compat_sys_rt_tgsigqueueinfo_wrapper) /* 330 */
-SYSCALL(sys_perf_counter_open,sys_perf_counter_open,sys_perf_counter_open_wrapper)
+SYSCALL(sys_perf_event_open,sys_perf_event_open,sys_perf_event_open_wrapper)

arch/s390/mm/fault.c

@@ -10,7 +10,7 @@
  *    Copyright (C) 1995  Linus Torvalds
  */
 
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
@@ -306,7 +306,7 @@ do_exception(struct pt_regs *regs, unsigned long error_code, int write)
 	 * interrupts again and then search the VMAs
 	 */
 	local_irq_enable();
-	perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
+	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
 	down_read(&mm->mmap_sem);
 
 	si_code = SEGV_MAPERR;
@@ -366,11 +366,11 @@ good_area:
 	}
 	if (fault & VM_FAULT_MAJOR) {
 		tsk->maj_flt++;
-		perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
+		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
 				     regs, address);
 	} else {
 		tsk->min_flt++;
-		perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
+		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
 				     regs, address);
 	}
         up_read(&mm->mmap_sem);

arch/sh/Kconfig

@@ -16,7 +16,7 @@ config SUPERH
 	select HAVE_IOREMAP_PROT if MMU
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_DMA_API_DEBUG
-	select HAVE_PERF_COUNTERS
+	select HAVE_PERF_EVENTS
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_BZIP2
 	select HAVE_KERNEL_LZMA

arch/sh/include/asm/perf_counter.h

@@ -1,9 +0,0 @@
-#ifndef __ASM_SH_PERF_COUNTER_H
-#define __ASM_SH_PERF_COUNTER_H
-
-/* SH only supports software counters through this interface. */
-static inline void set_perf_counter_pending(void) {}
-
-#define PERF_COUNTER_INDEX_OFFSET	0
-
-#endif /* __ASM_SH_PERF_COUNTER_H */

arch/sh/include/asm/perf_event.h

@@ -0,0 +1,9 @@
+#ifndef __ASM_SH_PERF_EVENT_H
+#define __ASM_SH_PERF_EVENT_H
+
+/* SH only supports software events through this interface. */
+static inline void set_perf_event_pending(void) {}
+
+#define PERF_EVENT_INDEX_OFFSET	0
+
+#endif /* __ASM_SH_PERF_EVENT_H */

arch/sh/include/asm/unistd_32.h

@@ -344,7 +344,7 @@
 #define __NR_preadv		333
 #define __NR_pwritev		334
 #define __NR_rt_tgsigqueueinfo	335
-#define __NR_perf_counter_open	336
+#define __NR_perf_event_open	336
 
 #define NR_syscalls 337
 

arch/sh/include/asm/unistd_64.h

@@ -384,7 +384,7 @@
 #define __NR_preadv		361
 #define __NR_pwritev		362
 #define __NR_rt_tgsigqueueinfo	363
-#define __NR_perf_counter_open	364
+#define __NR_perf_event_open	364
 
 #ifdef __KERNEL__
 

arch/sh/kernel/syscalls_32.S

@@ -352,4 +352,4 @@ ENTRY(sys_call_table)
 	.long sys_preadv
 	.long sys_pwritev
 	.long sys_rt_tgsigqueueinfo	/* 335 */
-	.long sys_perf_counter_open
+	.long sys_perf_event_open

arch/sh/kernel/syscalls_64.S

@@ -390,4 +390,4 @@ sys_call_table:
 	.long sys_preadv
 	.long sys_pwritev
 	.long sys_rt_tgsigqueueinfo
-	.long sys_perf_counter_open
+	.long sys_perf_event_open

arch/sh/mm/fault_32.c

@@ -15,7 +15,7 @@
 #include <linux/mm.h>
 #include <linux/hardirq.h>
 #include <linux/kprobes.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <asm/io_trapped.h>
 #include <asm/system.h>
 #include <asm/mmu_context.h>
@@ -157,7 +157,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 	if ((regs->sr & SR_IMASK) != SR_IMASK)
 		local_irq_enable();
 
-	perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
+	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
 
 	/*
 	 * If we're in an interrupt, have no user context or are running
@@ -208,11 +208,11 @@ survive:
 	}
 	if (fault & VM_FAULT_MAJOR) {
 		tsk->maj_flt++;
-		perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
+		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
 				     regs, address);
 	} else {
 		tsk->min_flt++;
-		perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
+		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
 				     regs, address);
 	}
 

arch/sh/mm/tlbflush_64.c

@@ -20,7 +20,7 @@
 #include <linux/mman.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <linux/interrupt.h>
 #include <asm/system.h>
 #include <asm/io.h>
@@ -116,7 +116,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess,
 	/* Not an IO address, so reenable interrupts */
 	local_irq_enable();
 
-	perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
+	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
 
 	/*
 	 * If we're in an interrupt or have no user
@@ -201,11 +201,11 @@ survive:
 
 	if (fault & VM_FAULT_MAJOR) {
 		tsk->maj_flt++;
-		perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
+		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
 				     regs, address);
 	} else {
 		tsk->min_flt++;
-		perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
+		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
 				     regs, address);
 	}
 

arch/sparc/Kconfig

@@ -25,7 +25,7 @@ config SPARC
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select RTC_CLASS
 	select RTC_DRV_M48T59
-	select HAVE_PERF_COUNTERS
+	select HAVE_PERF_EVENTS
 	select HAVE_DMA_ATTRS
 	select HAVE_DMA_API_DEBUG
 
@@ -47,7 +47,7 @@ config SPARC64
 	select RTC_DRV_BQ4802
 	select RTC_DRV_SUN4V
 	select RTC_DRV_STARFIRE
-	select HAVE_PERF_COUNTERS
+	select HAVE_PERF_EVENTS
 
 config ARCH_DEFCONFIG
 	string

arch/sparc/include/asm/perf_counter.h

@@ -1,14 +0,0 @@
-#ifndef __ASM_SPARC_PERF_COUNTER_H
-#define __ASM_SPARC_PERF_COUNTER_H
-
-extern void set_perf_counter_pending(void);
-
-#define	PERF_COUNTER_INDEX_OFFSET	0
-
-#ifdef CONFIG_PERF_COUNTERS
-extern void init_hw_perf_counters(void);
-#else
-static inline void init_hw_perf_counters(void)	{ }
-#endif
-
-#endif

arch/sparc/include/asm/perf_event.h

@@ -0,0 +1,14 @@
+#ifndef __ASM_SPARC_PERF_EVENT_H
+#define __ASM_SPARC_PERF_EVENT_H
+
+extern void set_perf_event_pending(void);
+
+#define	PERF_EVENT_INDEX_OFFSET	0
+
+#ifdef CONFIG_PERF_EVENTS
+extern void init_hw_perf_events(void);
+#else
+static inline void init_hw_perf_events(void)	{ }
+#endif
+
+#endif

arch/sparc/include/asm/unistd.h

@@ -395,7 +395,7 @@
 #define __NR_preadv		324
 #define __NR_pwritev		325
 #define __NR_rt_tgsigqueueinfo	326
-#define __NR_perf_counter_open	327
+#define __NR_perf_event_open	327
 
 #define NR_SYSCALLS		328
 

arch/sparc/kernel/Makefile

@@ -104,5 +104,5 @@ obj-$(CONFIG_AUDIT)     += audit.o
 audit--$(CONFIG_AUDIT)  := compat_audit.o
 obj-$(CONFIG_COMPAT)    += $(audit--y)
 
-pc--$(CONFIG_PERF_COUNTERS) := perf_counter.o
+pc--$(CONFIG_PERF_EVENTS) := perf_event.o
 obj-$(CONFIG_SPARC64)	+= $(pc--y)

arch/sparc/kernel/nmi.c

@@ -19,7 +19,7 @@
 #include <linux/delay.h>
 #include <linux/smp.h>
 
-#include <asm/perf_counter.h>
+#include <asm/perf_event.h>
 #include <asm/ptrace.h>
 #include <asm/local.h>
 #include <asm/pcr.h>
@@ -265,7 +265,7 @@ int __init nmi_init(void)
 		}
 	}
 	if (!err)
-		init_hw_perf_counters();
+		init_hw_perf_events();
 
 	return err;
 }

arch/sparc/kernel/pcr.c

@@ -7,7 +7,7 @@
 #include <linux/init.h>
 #include <linux/irq.h>
 
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 
 #include <asm/pil.h>
 #include <asm/pcr.h>
@@ -15,7 +15,7 @@
 
 /* This code is shared between various users of the performance
  * counters.  Users will be oprofile, pseudo-NMI watchdog, and the
- * perf_counter support layer.
+ * perf_event support layer.
  */
 
 #define PCR_SUN4U_ENABLE	(PCR_PIC_PRIV | PCR_STRACE | PCR_UTRACE)
@@ -42,14 +42,14 @@ void deferred_pcr_work_irq(int irq, struct pt_regs *regs)
 
 	old_regs = set_irq_regs(regs);
 	irq_enter();
-#ifdef CONFIG_PERF_COUNTERS
-	perf_counter_do_pending();
+#ifdef CONFIG_PERF_EVENTS
+	perf_event_do_pending();
 #endif
 	irq_exit();
 	set_irq_regs(old_regs);
 }
 
-void set_perf_counter_pending(void)
+void set_perf_event_pending(void)
 {
 	set_softint(1 << PIL_DEFERRED_PCR_WORK);
 }

arch/sparc/kernel/perf_counter.c → arch/sparc/kernel/perf_event.c

@@ -1,8 +1,8 @@
-/* Performance counter support for sparc64.
+/* Performance event support for sparc64.
  *
  * Copyright (C) 2009 David S. Miller <davem@davemloft.net>
  *
- * This code is based almost entirely upon the x86 perf counter
+ * This code is based almost entirely upon the x86 perf event
  * code, which is:
  *
  *  Copyright (C) 2008 Thomas Gleixner <tglx@linutronix.de>
@@ -12,7 +12,7 @@
  *  Copyright (C) 2008-2009 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com>
  */
 
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <linux/kprobes.h>
 #include <linux/kernel.h>
 #include <linux/kdebug.h>
@@ -46,19 +46,19 @@
  * normal code.
  */
 
-#define MAX_HWCOUNTERS			2
+#define MAX_HWEVENTS			2
 #define MAX_PERIOD			((1UL << 32) - 1)
 
 #define PIC_UPPER_INDEX			0
 #define PIC_LOWER_INDEX			1
 
-struct cpu_hw_counters {
-	struct perf_counter	*counters[MAX_HWCOUNTERS];
-	unsigned long		used_mask[BITS_TO_LONGS(MAX_HWCOUNTERS)];
-	unsigned long		active_mask[BITS_TO_LONGS(MAX_HWCOUNTERS)];
+struct cpu_hw_events {
+	struct perf_event	*events[MAX_HWEVENTS];
+	unsigned long		used_mask[BITS_TO_LONGS(MAX_HWEVENTS)];
+	unsigned long		active_mask[BITS_TO_LONGS(MAX_HWEVENTS)];
 	int enabled;
 };
-DEFINE_PER_CPU(struct cpu_hw_counters, cpu_hw_counters) = { .enabled = 1, };
+DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events) = { .enabled = 1, };
 
 struct perf_event_map {
 	u16	encoding;
@@ -87,9 +87,9 @@ static const struct perf_event_map ultra3i_perfmon_event_map[] = {
 	[PERF_COUNT_HW_CACHE_MISSES] = { 0x0009, PIC_UPPER },
 };
 
-static const struct perf_event_map *ultra3i_event_map(int event)
+static const struct perf_event_map *ultra3i_event_map(int event_id)
 {
-	return &ultra3i_perfmon_event_map[event];
+	return &ultra3i_perfmon_event_map[event_id];
 }
 
 static const struct sparc_pmu ultra3i_pmu = {
@@ -111,9 +111,9 @@ static const struct perf_event_map niagara2_perfmon_event_map[] = {
 	[PERF_COUNT_HW_BRANCH_MISSES] = { 0x0202, PIC_UPPER | PIC_LOWER },
 };
 
-static const struct perf_event_map *niagara2_event_map(int event)
+static const struct perf_event_map *niagara2_event_map(int event_id)
 {
-	return &niagara2_perfmon_event_map[event];
+	return &niagara2_perfmon_event_map[event_id];
 }
 
 static const struct sparc_pmu niagara2_pmu = {
@@ -130,13 +130,13 @@ static const struct sparc_pmu niagara2_pmu = {
 
 static const struct sparc_pmu *sparc_pmu __read_mostly;
 
-static u64 event_encoding(u64 event, int idx)
+static u64 event_encoding(u64 event_id, int idx)
 {
 	if (idx == PIC_UPPER_INDEX)
-		event <<= sparc_pmu->upper_shift;
+		event_id <<= sparc_pmu->upper_shift;
 	else
-		event <<= sparc_pmu->lower_shift;
-	return event;
+		event_id <<= sparc_pmu->lower_shift;
+	return event_id;
 }
 
 static u64 mask_for_index(int idx)
@@ -151,7 +151,7 @@ static u64 nop_for_index(int idx)
 			      sparc_pmu->lower_nop, idx);
 }
 
-static inline void sparc_pmu_enable_counter(struct hw_perf_counter *hwc,
+static inline void sparc_pmu_enable_event(struct hw_perf_event *hwc,
 					    int idx)
 {
 	u64 val, mask = mask_for_index(idx);
@@ -160,7 +160,7 @@ static inline void sparc_pmu_enable_counter(struct hw_perf_counter *hwc,
 	pcr_ops->write((val & ~mask) | hwc->config);
 }
 
-static inline void sparc_pmu_disable_counter(struct hw_perf_counter *hwc,
+static inline void sparc_pmu_disable_event(struct hw_perf_event *hwc,
 					     int idx)
 {
 	u64 mask = mask_for_index(idx);
@@ -172,7 +172,7 @@ static inline void sparc_pmu_disable_counter(struct hw_perf_counter *hwc,
 
 void hw_perf_enable(void)
 {
-	struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters);
+	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
 	u64 val;
 	int i;
 
@@ -184,9 +184,9 @@ void hw_perf_enable(void)
 
 	val = pcr_ops->read();
 
-	for (i = 0; i < MAX_HWCOUNTERS; i++) {
-		struct perf_counter *cp = cpuc->counters[i];
-		struct hw_perf_counter *hwc;
+	for (i = 0; i < MAX_HWEVENTS; i++) {
+		struct perf_event *cp = cpuc->events[i];
+		struct hw_perf_event *hwc;
 
 		if (!cp)
 			continue;
@@ -199,7 +199,7 @@ void hw_perf_enable(void)
 
 void hw_perf_disable(void)
 {
-	struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters);
+	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
 	u64 val;
 
 	if (!cpuc->enabled)
@@ -241,8 +241,8 @@ static void write_pmc(int idx, u64 val)
 	write_pic(pic);
 }
 
-static int sparc_perf_counter_set_period(struct perf_counter *counter,
-					 struct hw_perf_counter *hwc, int idx)
+static int sparc_perf_event_set_period(struct perf_event *event,
+					 struct hw_perf_event *hwc, int idx)
 {
 	s64 left = atomic64_read(&hwc->period_left);
 	s64 period = hwc->sample_period;
@@ -268,33 +268,33 @@ static int sparc_perf_counter_set_period(struct perf_counter *counter,
 
 	write_pmc(idx, (u64)(-left) & 0xffffffff);
 
-	perf_counter_update_userpage(counter);
+	perf_event_update_userpage(event);
 
 	return ret;
 }
 
-static int sparc_pmu_enable(struct perf_counter *counter)
+static int sparc_pmu_enable(struct perf_event *event)
 {
-	struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters);
-	struct hw_perf_counter *hwc = &counter->hw;
+	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+	struct hw_perf_event *hwc = &event->hw;
 	int idx = hwc->idx;
 
 	if (test_and_set_bit(idx, cpuc->used_mask))
 		return -EAGAIN;
 
-	sparc_pmu_disable_counter(hwc, idx);
+	sparc_pmu_disable_event(hwc, idx);
 
-	cpuc->counters[idx] = counter;
+	cpuc->events[idx] = event;
 	set_bit(idx, cpuc->active_mask);
 
-	sparc_perf_counter_set_period(counter, hwc, idx);
-	sparc_pmu_enable_counter(hwc, idx);
-	perf_counter_update_userpage(counter);
+	sparc_perf_event_set_period(event, hwc, idx);
+	sparc_pmu_enable_event(hwc, idx);
+	perf_event_update_userpage(event);
 	return 0;
 }
 
-static u64 sparc_perf_counter_update(struct perf_counter *counter,
-				     struct hw_perf_counter *hwc, int idx)
+static u64 sparc_perf_event_update(struct perf_event *event,
+				     struct hw_perf_event *hwc, int idx)
 {
 	int shift = 64 - 32;
 	u64 prev_raw_count, new_raw_count;
@@ -311,79 +311,79 @@ again:
 	delta = (new_raw_count << shift) - (prev_raw_count << shift);
 	delta >>= shift;
 
-	atomic64_add(delta, &counter->count);
+	atomic64_add(delta, &event->count);
 	atomic64_sub(delta, &hwc->period_left);
 
 	return new_raw_count;
 }
 
-static void sparc_pmu_disable(struct perf_counter *counter)
+static void sparc_pmu_disable(struct perf_event *event)
 {
-	struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters);
-	struct hw_perf_counter *hwc = &counter->hw;
+	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+	struct hw_perf_event *hwc = &event->hw;
 	int idx = hwc->idx;
 
 	clear_bit(idx, cpuc->active_mask);
-	sparc_pmu_disable_counter(hwc, idx);
+	sparc_pmu_disable_event(hwc, idx);
 
 	barrier();
 
-	sparc_perf_counter_update(counter, hwc, idx);
-	cpuc->counters[idx] = NULL;
+	sparc_perf_event_update(event, hwc, idx);
+	cpuc->events[idx] = NULL;
 	clear_bit(idx, cpuc->used_mask);
 
-	perf_counter_update_userpage(counter);
+	perf_event_update_userpage(event);
 }
 
-static void sparc_pmu_read(struct perf_counter *counter)
+static void sparc_pmu_read(struct perf_event *event)
 {
-	struct hw_perf_counter *hwc = &counter->hw;
-	sparc_perf_counter_update(counter, hwc, hwc->idx);
+	struct hw_perf_event *hwc = &event->hw;
+	sparc_perf_event_update(event, hwc, hwc->idx);
 }
 
-static void sparc_pmu_unthrottle(struct perf_counter *counter)
+static void sparc_pmu_unthrottle(struct perf_event *event)
 {
-	struct hw_perf_counter *hwc = &counter->hw;
-	sparc_pmu_enable_counter(hwc, hwc->idx);
+	struct hw_perf_event *hwc = &event->hw;
+	sparc_pmu_enable_event(hwc, hwc->idx);
 }
 
-static atomic_t active_counters = ATOMIC_INIT(0);
+static atomic_t active_events = ATOMIC_INIT(0);
 static DEFINE_MUTEX(pmc_grab_mutex);
 
-void perf_counter_grab_pmc(void)
+void perf_event_grab_pmc(void)
 {
-	if (atomic_inc_not_zero(&active_counters))
+	if (atomic_inc_not_zero(&active_events))
 		return;
 
 	mutex_lock(&pmc_grab_mutex);
-	if (atomic_read(&active_counters) == 0) {
+	if (atomic_read(&active_events) == 0) {
 		if (atomic_read(&nmi_active) > 0) {
 			on_each_cpu(stop_nmi_watchdog, NULL, 1);
 			BUG_ON(atomic_read(&nmi_active) != 0);
 		}
-		atomic_inc(&active_counters);
+		atomic_inc(&active_events);
 	}
 	mutex_unlock(&pmc_grab_mutex);
 }
 
-void perf_counter_release_pmc(void)
+void perf_event_release_pmc(void)
 {
-	if (atomic_dec_and_mutex_lock(&active_counters, &pmc_grab_mutex)) {
+	if (atomic_dec_and_mutex_lock(&active_events, &pmc_grab_mutex)) {
 		if (atomic_read(&nmi_active) == 0)
 			on_each_cpu(start_nmi_watchdog, NULL, 1);
 		mutex_unlock(&pmc_grab_mutex);
 	}
 }
 
-static void hw_perf_counter_destroy(struct perf_counter *counter)
+static void hw_perf_event_destroy(struct perf_event *event)
 {
-	perf_counter_release_pmc();
+	perf_event_release_pmc();
 }
 
-static int __hw_perf_counter_init(struct perf_counter *counter)
+static int __hw_perf_event_init(struct perf_event *event)
 {
-	struct perf_counter_attr *attr = &counter->attr;
-	struct hw_perf_counter *hwc = &counter->hw;
+	struct perf_event_attr *attr = &event->attr;
+	struct hw_perf_event *hwc = &event->hw;
 	const struct perf_event_map *pmap;
 	u64 enc;
 
@@ -396,8 +396,8 @@ static int __hw_perf_counter_init(struct perf_counter *counter)
 	if (attr->config >= sparc_pmu->max_events)
 		return -EINVAL;
 
-	perf_counter_grab_pmc();
-	counter->destroy = hw_perf_counter_destroy;
+	perf_event_grab_pmc();
+	event->destroy = hw_perf_event_destroy;
 
 	/* We save the enable bits in the config_base.  So to
 	 * turn off sampling just write 'config', and to enable
@@ -439,16 +439,16 @@ static const struct pmu pmu = {
 	.unthrottle	= sparc_pmu_unthrottle,
 };
 
-const struct pmu *hw_perf_counter_init(struct perf_counter *counter)
+const struct pmu *hw_perf_event_init(struct perf_event *event)
 {
-	int err = __hw_perf_counter_init(counter);
+	int err = __hw_perf_event_init(event);
 
 	if (err)
 		return ERR_PTR(err);
 	return &pmu;
 }
 
-void perf_counter_print_debug(void)
+void perf_event_print_debug(void)
 {
 	unsigned long flags;
 	u64 pcr, pic;
@@ -471,16 +471,16 @@ void perf_counter_print_debug(void)
 	local_irq_restore(flags);
 }
 
-static int __kprobes perf_counter_nmi_handler(struct notifier_block *self,
+static int __kprobes perf_event_nmi_handler(struct notifier_block *self,
 					      unsigned long cmd, void *__args)
 {
 	struct die_args *args = __args;
 	struct perf_sample_data data;
-	struct cpu_hw_counters *cpuc;
+	struct cpu_hw_events *cpuc;
 	struct pt_regs *regs;
 	int idx;
 
-	if (!atomic_read(&active_counters))
+	if (!atomic_read(&active_events))
 		return NOTIFY_DONE;
 
 	switch (cmd) {
@@ -495,32 +495,32 @@ static int __kprobes perf_counter_nmi_handler(struct notifier_block *self,
 
 	data.addr = 0;
 
-	cpuc = &__get_cpu_var(cpu_hw_counters);
-	for (idx = 0; idx < MAX_HWCOUNTERS; idx++) {
-		struct perf_counter *counter = cpuc->counters[idx];
-		struct hw_perf_counter *hwc;
+	cpuc = &__get_cpu_var(cpu_hw_events);
+	for (idx = 0; idx < MAX_HWEVENTS; idx++) {
+		struct perf_event *event = cpuc->events[idx];
+		struct hw_perf_event *hwc;
 		u64 val;
 
 		if (!test_bit(idx, cpuc->active_mask))
 			continue;
-		hwc = &counter->hw;
-		val = sparc_perf_counter_update(counter, hwc, idx);
+		hwc = &event->hw;
+		val = sparc_perf_event_update(event, hwc, idx);
 		if (val & (1ULL << 31))
 			continue;
 
-		data.period = counter->hw.last_period;
-		if (!sparc_perf_counter_set_period(counter, hwc, idx))
+		data.period = event->hw.last_period;
+		if (!sparc_perf_event_set_period(event, hwc, idx))
 			continue;
 
-		if (perf_counter_overflow(counter, 1, &data, regs))
-			sparc_pmu_disable_counter(hwc, idx);
+		if (perf_event_overflow(event, 1, &data, regs))
+			sparc_pmu_disable_event(hwc, idx);
 	}
 
 	return NOTIFY_STOP;
 }
 
-static __read_mostly struct notifier_block perf_counter_nmi_notifier = {
-	.notifier_call		= perf_counter_nmi_handler,
+static __read_mostly struct notifier_block perf_event_nmi_notifier = {
+	.notifier_call		= perf_event_nmi_handler,
 };
 
 static bool __init supported_pmu(void)
@@ -536,9 +536,9 @@ static bool __init supported_pmu(void)
 	return false;
 }
 
-void __init init_hw_perf_counters(void)
+void __init init_hw_perf_events(void)
 {
-	pr_info("Performance counters: ");
+	pr_info("Performance events: ");
 
 	if (!supported_pmu()) {
 		pr_cont("No support for PMU type '%s'\n", sparc_pmu_type);
@@ -547,10 +547,10 @@ void __init init_hw_perf_counters(void)
 
 	pr_cont("Supported PMU type is '%s'\n", sparc_pmu_type);
 
-	/* All sparc64 PMUs currently have 2 counters.  But this simple
-	 * driver only supports one active counter at a time.
+	/* All sparc64 PMUs currently have 2 events.  But this simple
+	 * driver only supports one active event at a time.
 	 */
-	perf_max_counters = 1;
+	perf_max_events = 1;
 
-	register_die_notifier(&perf_counter_nmi_notifier);
+	register_die_notifier(&perf_event_nmi_notifier);
 }

arch/sparc/kernel/systbls_32.S

@@ -82,5 +82,5 @@ sys_call_table:
 /*310*/	.long sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate
 /*315*/	.long sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1
 /*320*/	.long sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv
-/*325*/	.long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_counter_open
+/*325*/	.long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open
 

arch/sparc/kernel/systbls_64.S

@@ -83,7 +83,7 @@ sys_call_table32:
 /*310*/	.word compat_sys_utimensat, compat_sys_signalfd, sys_timerfd_create, sys_eventfd, compat_sys_fallocate
 	.word compat_sys_timerfd_settime, compat_sys_timerfd_gettime, compat_sys_signalfd4, sys_eventfd2, sys_epoll_create1
 /*320*/	.word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, compat_sys_preadv
-	.word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_counter_open
+	.word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open
 
 #endif /* CONFIG_COMPAT */
 
@@ -158,4 +158,4 @@ sys_call_table:
 /*310*/	.word sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate
 	.word sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1
 /*320*/	.word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv
-	.word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_counter_open
+	.word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open

arch/x86/Kconfig

@@ -24,7 +24,7 @@ config X86
 	select HAVE_UNSTABLE_SCHED_CLOCK
 	select HAVE_IDE
 	select HAVE_OPROFILE
-	select HAVE_PERF_COUNTERS if (!M386 && !M486)
+	select HAVE_PERF_EVENTS if (!M386 && !M486)
 	select HAVE_IOREMAP_PROT
 	select HAVE_KPROBES
 	select ARCH_WANT_OPTIONAL_GPIOLIB

arch/x86/ia32/ia32entry.S

@@ -831,5 +831,5 @@ ia32_sys_call_table:
 	.quad compat_sys_preadv
 	.quad compat_sys_pwritev
 	.quad compat_sys_rt_tgsigqueueinfo	/* 335 */
-	.quad sys_perf_counter_open
+	.quad sys_perf_event_open
 ia32_syscall_end:

arch/x86/include/asm/entry_arch.h

@@ -49,7 +49,7 @@ BUILD_INTERRUPT(apic_timer_interrupt,LOCAL_TIMER_VECTOR)
 BUILD_INTERRUPT(error_interrupt,ERROR_APIC_VECTOR)
 BUILD_INTERRUPT(spurious_interrupt,SPURIOUS_APIC_VECTOR)
 
-#ifdef CONFIG_PERF_COUNTERS
+#ifdef CONFIG_PERF_EVENTS
 BUILD_INTERRUPT(perf_pending_interrupt, LOCAL_PENDING_VECTOR)
 #endif
 

arch/x86/include/asm/perf_counter.h → arch/x86/include/asm/perf_event.h

@@ -1,8 +1,8 @@
-#ifndef _ASM_X86_PERF_COUNTER_H
-#define _ASM_X86_PERF_COUNTER_H
+#ifndef _ASM_X86_PERF_EVENT_H
+#define _ASM_X86_PERF_EVENT_H
 
 /*
- * Performance counter hw details:
+ * Performance event hw details:
  */
 
 #define X86_PMC_MAX_GENERIC					8
@@ -43,7 +43,7 @@
 union cpuid10_eax {
 	struct {
 		unsigned int version_id:8;
-		unsigned int num_counters:8;
+		unsigned int num_events:8;
 		unsigned int bit_width:8;
 		unsigned int mask_length:8;
 	} split;
@@ -52,7 +52,7 @@ union cpuid10_eax {
 
 union cpuid10_edx {
 	struct {
-		unsigned int num_counters_fixed:4;
+		unsigned int num_events_fixed:4;
 		unsigned int reserved:28;
 	} split;
 	unsigned int full;
@@ -60,7 +60,7 @@ union cpuid10_edx {
 
 
 /*
- * Fixed-purpose performance counters:
+ * Fixed-purpose performance events:
  */
 
 /*
@@ -87,22 +87,22 @@ union cpuid10_edx {
 /*
  * We model BTS tracing as another fixed-mode PMC.
  *
- * We choose a value in the middle of the fixed counter range, since lower
- * values are used by actual fixed counters and higher values are used
+ * We choose a value in the middle of the fixed event range, since lower
+ * values are used by actual fixed events and higher values are used
  * to indicate other overflow conditions in the PERF_GLOBAL_STATUS msr.
  */
 #define X86_PMC_IDX_FIXED_BTS				(X86_PMC_IDX_FIXED + 16)
 
 
-#ifdef CONFIG_PERF_COUNTERS
-extern void init_hw_perf_counters(void);
-extern void perf_counters_lapic_init(void);
+#ifdef CONFIG_PERF_EVENTS
+extern void init_hw_perf_events(void);
+extern void perf_events_lapic_init(void);
 
-#define PERF_COUNTER_INDEX_OFFSET			0
+#define PERF_EVENT_INDEX_OFFSET			0
 
 #else
-static inline void init_hw_perf_counters(void)		{ }
-static inline void perf_counters_lapic_init(void)	{ }
+static inline void init_hw_perf_events(void)		{ }
+static inline void perf_events_lapic_init(void)	{ }
 #endif
 
-#endif /* _ASM_X86_PERF_COUNTER_H */
+#endif /* _ASM_X86_PERF_EVENT_H */

arch/x86/include/asm/unistd_32.h

@@ -341,7 +341,7 @@
 #define __NR_preadv		333
 #define __NR_pwritev		334
 #define __NR_rt_tgsigqueueinfo	335
-#define __NR_perf_counter_open	336
+#define __NR_perf_event_open	336
 
 #ifdef __KERNEL__
 

arch/x86/include/asm/unistd_64.h

@@ -659,8 +659,8 @@ __SYSCALL(__NR_preadv, sys_preadv)
 __SYSCALL(__NR_pwritev, sys_pwritev)
 #define __NR_rt_tgsigqueueinfo			297
 __SYSCALL(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo)
-#define __NR_perf_counter_open			298
-__SYSCALL(__NR_perf_counter_open, sys_perf_counter_open)
+#define __NR_perf_event_open			298
+__SYSCALL(__NR_perf_event_open, sys_perf_event_open)
 
 #ifndef __NO_STUBS
 #define __ARCH_WANT_OLD_READDIR

arch/x86/kernel/apic/apic.c

@@ -14,7 +14,7 @@
  *	Mikael Pettersson	:	PM converted to driver model.
  */
 
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <linux/kernel_stat.h>
 #include <linux/mc146818rtc.h>
 #include <linux/acpi_pmtmr.h>
@@ -35,7 +35,7 @@
 #include <linux/smp.h>
 #include <linux/mm.h>
 
-#include <asm/perf_counter.h>
+#include <asm/perf_event.h>
 #include <asm/x86_init.h>
 #include <asm/pgalloc.h>
 #include <asm/atomic.h>
@@ -1189,7 +1189,7 @@ void __cpuinit setup_local_APIC(void)
 		apic_write(APIC_ESR, 0);
 	}
 #endif
-	perf_counters_lapic_init();
+	perf_events_lapic_init();
 
 	preempt_disable();
 

arch/x86/kernel/cpu/Makefile

@@ -27,7 +27,7 @@ obj-$(CONFIG_CPU_SUP_CENTAUR)		+= centaur.o
 obj-$(CONFIG_CPU_SUP_TRANSMETA_32)	+= transmeta.o
 obj-$(CONFIG_CPU_SUP_UMC_32)		+= umc.o
 
-obj-$(CONFIG_PERF_COUNTERS)		+= perf_counter.o
+obj-$(CONFIG_PERF_EVENTS)		+= perf_event.o
 
 obj-$(CONFIG_X86_MCE)			+= mcheck/
 obj-$(CONFIG_MTRR)			+= mtrr/

arch/x86/kernel/cpu/common.c

@@ -13,7 +13,7 @@
 #include <linux/io.h>
 
 #include <asm/stackprotector.h>
-#include <asm/perf_counter.h>
+#include <asm/perf_event.h>
 #include <asm/mmu_context.h>
 #include <asm/hypervisor.h>
 #include <asm/processor.h>
@@ -869,7 +869,7 @@ void __init identify_boot_cpu(void)
 #else
 	vgetcpu_set_mode();
 #endif
-	init_hw_perf_counters();
+	init_hw_perf_events();
 }
 
 void __cpuinit identify_secondary_cpu(struct cpuinfo_x86 *c)

arch/x86/kernel/cpu/perfctr-watchdog.c

@@ -20,7 +20,7 @@
 #include <linux/kprobes.h>
 
 #include <asm/apic.h>
-#include <asm/perf_counter.h>
+#include <asm/perf_event.h>
 
 struct nmi_watchdog_ctlblk {
 	unsigned int cccr_msr;

arch/x86/kernel/entry_64.S

@@ -1021,7 +1021,7 @@ apicinterrupt ERROR_APIC_VECTOR \
 apicinterrupt SPURIOUS_APIC_VECTOR \
 	spurious_interrupt smp_spurious_interrupt
 
-#ifdef CONFIG_PERF_COUNTERS
+#ifdef CONFIG_PERF_EVENTS
 apicinterrupt LOCAL_PENDING_VECTOR \
 	perf_pending_interrupt smp_perf_pending_interrupt
 #endif

arch/x86/kernel/irqinit.c

@@ -208,7 +208,7 @@ static void __init apic_intr_init(void)
 	alloc_intr_gate(ERROR_APIC_VECTOR, error_interrupt);
 
 	/* Performance monitoring interrupts: */
-# ifdef CONFIG_PERF_COUNTERS
+# ifdef CONFIG_PERF_EVENTS
 	alloc_intr_gate(LOCAL_PENDING_VECTOR, perf_pending_interrupt);
 # endif
 

arch/x86/kernel/syscall_table_32.S

@@ -335,4 +335,4 @@ ENTRY(sys_call_table)
 	.long sys_preadv
 	.long sys_pwritev
 	.long sys_rt_tgsigqueueinfo	/* 335 */
-	.long sys_perf_counter_open
+	.long sys_perf_event_open

arch/x86/mm/fault.c

@@ -10,7 +10,7 @@
 #include <linux/bootmem.h>		/* max_low_pfn			*/
 #include <linux/kprobes.h>		/* __kprobes, ...		*/
 #include <linux/mmiotrace.h>		/* kmmio_handler, ...		*/
-#include <linux/perf_counter.h>		/* perf_swcounter_event		*/
+#include <linux/perf_event.h>		/* perf_sw_event		*/
 
 #include <asm/traps.h>			/* dotraplinkage, ...		*/
 #include <asm/pgalloc.h>		/* pgd_*(), ...			*/
@@ -1017,7 +1017,7 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	if (unlikely(error_code & PF_RSVD))
 		pgtable_bad(regs, error_code, address);
 
-	perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
+	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
 
 	/*
 	 * If we're in an interrupt, have no user context or are running
@@ -1114,11 +1114,11 @@ good_area:
 
 	if (fault & VM_FAULT_MAJOR) {
 		tsk->maj_flt++;
-		perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
+		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
 				     regs, address);
 	} else {
 		tsk->min_flt++;
-		perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
+		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
 				     regs, address);
 	}
 

arch/x86/oprofile/op_model_ppro.c

@@ -234,11 +234,11 @@ static void arch_perfmon_setup_counters(void)
 	if (eax.split.version_id == 0 && current_cpu_data.x86 == 6 &&
 		current_cpu_data.x86_model == 15) {
 		eax.split.version_id = 2;
-		eax.split.num_counters = 2;
+		eax.split.num_events = 2;
 		eax.split.bit_width = 40;
 	}
 
-	num_counters = eax.split.num_counters;
+	num_counters = eax.split.num_events;
 
 	op_arch_perfmon_spec.num_counters = num_counters;
 	op_arch_perfmon_spec.num_controls = num_counters;

arch/x86/oprofile/op_x86_model.h

@@ -13,7 +13,7 @@
 #define OP_X86_MODEL_H
 
 #include <asm/types.h>
-#include <asm/perf_counter.h>
+#include <asm/perf_event.h>
 
 struct op_msr {
 	unsigned long	addr;

drivers/char/sysrq.c

@@ -26,7 +26,7 @@
 #include <linux/proc_fs.h>
 #include <linux/nmi.h>
 #include <linux/quotaops.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/suspend.h>
@@ -252,7 +252,7 @@ static void sysrq_handle_showregs(int key, struct tty_struct *tty)
 	struct pt_regs *regs = get_irq_regs();
 	if (regs)
 		show_regs(regs);
-	perf_counter_print_debug();
+	perf_event_print_debug();
 }
 static struct sysrq_key_op sysrq_showregs_op = {
 	.handler	= sysrq_handle_showregs,

fs/exec.c

@@ -33,7 +33,7 @@
 #include <linux/string.h>
 #include <linux/init.h>
 #include <linux/pagemap.h>
-#include <linux/perf_counter.h>
+#include <linux/perf_event.h>
 #include <linux/highmem.h>
 #include <linux/spinlock.h>
 #include <linux/key.h>
@@ -923,7 +923,7 @@ void set_task_comm(struct task_struct *tsk, char *buf)
 	task_lock(tsk);
 	strlcpy(tsk->comm, buf, sizeof(tsk->comm));
 	task_unlock(tsk);
-	perf_counter_comm(tsk);
+	perf_event_comm(tsk);
 }
 
 int flush_old_exec(struct linux_binprm * bprm)
@@ -997,7 +997,7 @@ int flush_old_exec(struct linux_binprm * bprm)
 	 * security domain:
 	 */
 	if (!get_dumpable(current->mm))
-		perf_counter_exit_task(current);
+		perf_event_exit_task(current);
 
 	/* An exec changes our domain. We are no longer part of the thread
 	   group */

include/asm-generic/unistd.h

@@ -620,8 +620,8 @@ __SYSCALL(__NR_move_pages, sys_move_pages)
 
 #define __NR_rt_tgsigqueueinfo 240
 __SYSCALL(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo)
-#define __NR_perf_counter_open 241
-__SYSCALL(__NR_perf_counter_open, sys_perf_counter_open)
+#define __NR_perf_event_open 241
+__SYSCALL(__NR_perf_event_open, sys_perf_event_open)
 
 #undef __NR_syscalls
 #define __NR_syscalls 242

include/linux/init_task.h

@@ -106,13 +106,13 @@ extern struct group_info init_groups;
 
 extern struct cred init_cred;
 
-#ifdef CONFIG_PERF_COUNTERS
-# define INIT_PERF_COUNTERS(tsk)					\
-	.perf_counter_mutex = 						\
-		 __MUTEX_INITIALIZER(tsk.perf_counter_mutex),		\
-	.perf_counter_list = LIST_HEAD_INIT(tsk.perf_counter_list),
+#ifdef CONFIG_PERF_EVENTS
+# define INIT_PERF_EVENTS(tsk)					\
+	.perf_event_mutex = 						\
+		 __MUTEX_INITIALIZER(tsk.perf_event_mutex),		\
+	.perf_event_list = LIST_HEAD_INIT(tsk.perf_event_list),
 #else
-# define INIT_PERF_COUNTERS(tsk)
+# define INIT_PERF_EVENTS(tsk)
 #endif
 
 /*
@@ -178,7 +178,7 @@ extern struct cred init_cred;
 	},								\
 	.dirties = INIT_PROP_LOCAL_SINGLE(dirties),			\
 	INIT_IDS							\
-	INIT_PERF_COUNTERS(tsk)						\
+	INIT_PERF_EVENTS(tsk)						\
 	INIT_TRACE_IRQFLAGS						\
 	INIT_LOCKDEP							\
 	INIT_FTRACE_GRAPH						\

include/linux/perf_counter.h → include/linux/perf_event.h

@@ -1,5 +1,5 @@
 /*
- *  Performance counters:
+ *  Performance events:
  *
  *    Copyright (C) 2008-2009, Thomas Gleixner <tglx@linutronix.de>
  *    Copyright (C) 2008-2009, Red Hat, Inc., Ingo Molnar
@@ -11,8 +11,8 @@
  *
  *  For licencing details see kernel-base/COPYING
  */
-#ifndef _LINUX_PERF_COUNTER_H
-#define _LINUX_PERF_COUNTER_H
+#ifndef _LINUX_PERF_EVENT_H
+#define _LINUX_PERF_EVENT_H
 
 #include <linux/types.h>
 #include <linux/ioctl.h>
@@ -36,8 +36,8 @@ enum perf_type_id {
 };
 
 /*
- * Generalized performance counter event types, used by the
- * attr.event_id parameter of the sys_perf_counter_open()
+ * Generalized performance event event_id types, used by the
+ * attr.event_id parameter of the sys_perf_event_open()
  * syscall:
  */
 enum perf_hw_id {
@@ -56,7 +56,7 @@ enum perf_hw_id {
 };
 
 /*
- * Generalized hardware cache counters:
+ * Generalized hardware cache events:
  *
  *       { L1-D, L1-I, LLC, ITLB, DTLB, BPU } x
  *       { read, write, prefetch } x
@@ -89,8 +89,8 @@ enum perf_hw_cache_op_result_id {
 };
 
 /*
- * Special "software" counters provided by the kernel, even if the hardware
- * does not support performance counters. These counters measure various
+ * Special "software" events provided by the kernel, even if the hardware
+ * does not support performance events. These events measure various
  * physical and sw events of the kernel (and allow the profiling of them as
  * well):
  */
@@ -110,7 +110,7 @@ enum perf_sw_ids {
  * Bits that can be set in attr.sample_type to request information
  * in the overflow packets.
  */
-enum perf_counter_sample_format {
+enum perf_event_sample_format {
 	PERF_SAMPLE_IP				= 1U << 0,
 	PERF_SAMPLE_TID				= 1U << 1,
 	PERF_SAMPLE_TIME			= 1U << 2,
@@ -127,7 +127,7 @@ enum perf_counter_sample_format {
 };
 
 /*
- * The format of the data returned by read() on a perf counter fd,
+ * The format of the data returned by read() on a perf event fd,
  * as specified by attr.read_format:
  *
  * struct read_format {
@@ -146,7 +146,7 @@ enum perf_counter_sample_format {
  * 	} && PERF_FORMAT_GROUP
  * };
  */
-enum perf_counter_read_format {
+enum perf_event_read_format {
 	PERF_FORMAT_TOTAL_TIME_ENABLED		= 1U << 0,
 	PERF_FORMAT_TOTAL_TIME_RUNNING		= 1U << 1,
 	PERF_FORMAT_ID				= 1U << 2,
@@ -158,9 +158,9 @@ enum perf_counter_read_format {
 #define PERF_ATTR_SIZE_VER0	64	/* sizeof first published struct */
 
 /*
- * Hardware event to monitor via a performance monitoring counter:
+ * Hardware event_id to monitor via a performance monitoring event:
  */
-struct perf_counter_attr {
+struct perf_event_attr {
 
 	/*
 	 * Major type: hardware/software/tracepoint/etc.
@@ -213,28 +213,28 @@ struct perf_counter_attr {
 };
 
 /*
- * Ioctls that can be done on a perf counter fd:
+ * Ioctls that can be done on a perf event fd:
  */
-#define PERF_COUNTER_IOC_ENABLE		_IO ('$', 0)
-#define PERF_COUNTER_IOC_DISABLE	_IO ('$', 1)
-#define PERF_COUNTER_IOC_REFRESH	_IO ('$', 2)
-#define PERF_COUNTER_IOC_RESET		_IO ('$', 3)
-#define PERF_COUNTER_IOC_PERIOD		_IOW('$', 4, u64)
-#define PERF_COUNTER_IOC_SET_OUTPUT	_IO ('$', 5)
-
-enum perf_counter_ioc_flags {
+#define PERF_EVENT_IOC_ENABLE		_IO ('$', 0)
+#define PERF_EVENT_IOC_DISABLE	_IO ('$', 1)
+#define PERF_EVENT_IOC_REFRESH	_IO ('$', 2)
+#define PERF_EVENT_IOC_RESET		_IO ('$', 3)
+#define PERF_EVENT_IOC_PERIOD		_IOW('$', 4, u64)
+#define PERF_EVENT_IOC_SET_OUTPUT	_IO ('$', 5)
+
+enum perf_event_ioc_flags {
 	PERF_IOC_FLAG_GROUP		= 1U << 0,
 };
 
 /*
  * Structure of the page that can be mapped via mmap
  */
-struct perf_counter_mmap_page {
+struct perf_event_mmap_page {
 	__u32	version;		/* version number of this structure */
 	__u32	compat_version;		/* lowest version this is compat with */
 
 	/*
-	 * Bits needed to read the hw counters in user-space.
+	 * Bits needed to read the hw events in user-space.
 	 *
 	 *   u32 seq;
 	 *   s64 count;
@@ -256,10 +256,10 @@ struct perf_counter_mmap_page {
 	 *       processes.
 	 */
 	__u32	lock;			/* seqlock for synchronization */
-	__u32	index;			/* hardware counter identifier */
-	__s64	offset;			/* add to hardware counter value */
-	__u64	time_enabled;		/* time counter active */
-	__u64	time_running;		/* time counter on cpu */
+	__u32	index;			/* hardware event identifier */
+	__s64	offset;			/* add to hardware event value */
+	__u64	time_enabled;		/* time event active */
+	__u64	time_running;		/* time event on cpu */
 
 		/*
 		 * Hole for extension of the self monitor capabilities
@@ -272,7 +272,7 @@ struct perf_counter_mmap_page {
 	 *
 	 * User-space reading the @data_head value should issue an rmb(), on
 	 * SMP capable platforms, after reading this value -- see
-	 * perf_counter_wakeup().
+	 * perf_event_wakeup().
 	 *
 	 * When the mapping is PROT_WRITE the @data_tail value should be
 	 * written by userspace to reflect the last read data. In this case
@@ -282,11 +282,11 @@ struct perf_counter_mmap_page {
 	__u64	data_tail;		/* user-space written tail */
 };
 
-#define PERF_EVENT_MISC_CPUMODE_MASK		(3 << 0)
-#define PERF_EVENT_MISC_CPUMODE_UNKNOWN		(0 << 0)
-#define PERF_EVENT_MISC_KERNEL			(1 << 0)
-#define PERF_EVENT_MISC_USER			(2 << 0)
-#define PERF_EVENT_MISC_HYPERVISOR		(3 << 0)
+#define PERF_RECORD_MISC_CPUMODE_MASK		(3 << 0)
+#define PERF_RECORD_MISC_CPUMODE_UNKNOWN		(0 << 0)
+#define PERF_RECORD_MISC_KERNEL			(1 << 0)
+#define PERF_RECORD_MISC_USER			(2 << 0)
+#define PERF_RECORD_MISC_HYPERVISOR		(3 << 0)
 
 struct perf_event_header {
 	__u32	type;
@@ -310,7 +310,7 @@ enum perf_event_type {
 	 *	char				filename[];
 	 * };
 	 */
-	PERF_EVENT_MMAP			= 1,
+	PERF_RECORD_MMAP			= 1,
 
 	/*
 	 * struct {
@@ -319,7 +319,7 @@ enum perf_event_type {
 	 * 	u64				lost;
 	 * };
 	 */
-	PERF_EVENT_LOST			= 2,
+	PERF_RECORD_LOST			= 2,
 
 	/*
 	 * struct {
@@ -329,7 +329,7 @@ enum perf_event_type {
 	 *	char				comm[];
 	 * };
 	 */
-	PERF_EVENT_COMM			= 3,
+	PERF_RECORD_COMM			= 3,
 
 	/*
 	 * struct {
@@ -339,7 +339,7 @@ enum perf_event_type {
 	 *	u64				time;
 	 * };
 	 */
-	PERF_EVENT_EXIT			= 4,
+	PERF_RECORD_EXIT			= 4,
 
 	/*
 	 * struct {
@@ -349,8 +349,8 @@ enum perf_event_type {
 	 *	u64				stream_id;
 	 * };
 	 */
-	PERF_EVENT_THROTTLE		= 5,
-	PERF_EVENT_UNTHROTTLE		= 6,
+	PERF_RECORD_THROTTLE		= 5,
+	PERF_RECORD_UNTHROTTLE		= 6,
 
 	/*
 	 * struct {
@@ -360,7 +360,7 @@ enum perf_event_type {
 	 *	{ u64				time;     } && PERF_SAMPLE_TIME
 	 * };
 	 */
-	PERF_EVENT_FORK			= 7,
+	PERF_RECORD_FORK			= 7,
 
 	/*
 	 * struct {
@@ -370,7 +370,7 @@ enum perf_event_type {
 	 * 	struct read_format		values;
 	 * };
 	 */
-	PERF_EVENT_READ			= 8,
+	PERF_RECORD_READ			= 8,
 
 	/*
 	 * struct {
@@ -395,7 +395,7 @@ enum perf_event_type {
 	 * 	#
 	 * 	# That is, the ABI doesn't make any promises wrt to
 	 * 	# the stability of its content, it may vary depending
-	 * 	# on event, hardware, kernel version and phase of
+	 * 	# on event_id, hardware, kernel version and phase of
 	 * 	# the moon.
 	 * 	#
 	 * 	# In other words, PERF_SAMPLE_RAW contents are not an ABI.
@@ -405,9 +405,9 @@ enum perf_event_type {
 	 *	  char                  data[size];}&& PERF_SAMPLE_RAW
 	 * };
 	 */
-	PERF_EVENT_SAMPLE		= 9,
+	PERF_RECORD_SAMPLE		= 9,
 
-	PERF_EVENT_MAX,			/* non-ABI */
+	PERF_RECORD_MAX,			/* non-ABI */
 };
 
 enum perf_callchain_context {
@@ -430,8 +430,8 @@ enum perf_callchain_context {
  * Kernel-internal data types and definitions:
  */
 
-#ifdef CONFIG_PERF_COUNTERS
-# include <asm/perf_counter.h>
+#ifdef CONFIG_PERF_EVENTS
+# include <asm/perf_event.h>
 #endif
 
 #include <linux/list.h>
@@ -459,15 +459,15 @@ struct perf_raw_record {
 struct task_struct;
 
 /**
- * struct hw_perf_counter - performance counter hardware details:
+ * struct hw_perf_event - performance event hardware details:
  */
-struct hw_perf_counter {
-#ifdef CONFIG_PERF_COUNTERS
+struct hw_perf_event {
+#ifdef CONFIG_PERF_EVENTS
 	union {
 		struct { /* hardware */
 			u64		config;
 			unsigned long	config_base;
-			unsigned long	counter_base;
+			unsigned long	event_base;
 			int		idx;
 		};
 		union { /* software */
@@ -487,26 +487,26 @@ struct hw_perf_counter {
 #endif
 };
 
-struct perf_counter;
+struct perf_event;
 
 /**
  * struct pmu - generic performance monitoring unit
  */
 struct pmu {
-	int (*enable)			(struct perf_counter *counter);
-	void (*disable)			(struct perf_counter *counter);
-	void (*read)			(struct perf_counter *counter);
-	void (*unthrottle)		(struct perf_counter *counter);
+	int (*enable)			(struct perf_event *event);
+	void (*disable)			(struct perf_event *event);
+	void (*read)			(struct perf_event *event);
+	void (*unthrottle)		(struct perf_event *event);
 };
 
 /**
- * enum perf_counter_active_state - the states of a counter
+ * enum perf_event_active_state - the states of a event
  */
-enum perf_counter_active_state {
-	PERF_COUNTER_STATE_ERROR	= -2,
-	PERF_COUNTER_STATE_OFF		= -1,
-	PERF_COUNTER_STATE_INACTIVE	=  0,
-	PERF_COUNTER_STATE_ACTIVE	=  1,
+enum perf_event_active_state {
+	PERF_EVENT_STATE_ERROR	= -2,
+	PERF_EVENT_STATE_OFF		= -1,
+	PERF_EVENT_STATE_INACTIVE	=  0,
+	PERF_EVENT_STATE_ACTIVE	=  1,
 };
 
 struct file;
@@ -518,7 +518,7 @@ struct perf_mmap_data {
 	int				nr_locked;	/* nr pages mlocked  */
 
 	atomic_t			poll;		/* POLL_ for wakeups */
-	atomic_t			events;		/* event limit       */
+	atomic_t			events;		/* event_id limit       */
 
 	atomic_long_t			head;		/* write position    */
 	atomic_long_t			done_head;	/* completed head    */
@@ -529,7 +529,7 @@ struct perf_mmap_data {
 
 	long				watermark;	/* wakeup watermark  */
 
-	struct perf_counter_mmap_page   *user_page;
+	struct perf_event_mmap_page   *user_page;
 	void				*data_pages[0];
 };
 
@@ -539,56 +539,56 @@ struct perf_pending_entry {
 };
 
 /**
- * struct perf_counter - performance counter kernel representation:
+ * struct perf_event - performance event kernel representation:
  */
-struct perf_counter {
-#ifdef CONFIG_PERF_COUNTERS
+struct perf_event {
+#ifdef CONFIG_PERF_EVENTS
 	struct list_head		group_entry;
 	struct list_head		event_entry;
 	struct list_head		sibling_list;
 	int				nr_siblings;
-	struct perf_counter		*group_leader;
-	struct perf_counter		*output;
+	struct perf_event		*group_leader;
+	struct perf_event		*output;
 	const struct pmu		*pmu;
 
-	enum perf_counter_active_state	state;
+	enum perf_event_active_state	state;
 	atomic64_t			count;
 
 	/*
-	 * These are the total time in nanoseconds that the counter
+	 * These are the total time in nanoseconds that the event
 	 * has been enabled (i.e. eligible to run, and the task has
-	 * been scheduled in, if this is a per-task counter)
+	 * been scheduled in, if this is a per-task event)
 	 * and running (scheduled onto the CPU), respectively.
 	 *
 	 * They are computed from tstamp_enabled, tstamp_running and
-	 * tstamp_stopped when the counter is in INACTIVE or ACTIVE state.
+	 * tstamp_stopped when the event is in INACTIVE or ACTIVE state.
 	 */
 	u64				total_time_enabled;
 	u64				total_time_running;
 
 	/*
 	 * These are timestamps used for computing total_time_enabled
-	 * and total_time_running when the counter is in INACTIVE or
+	 * and total_time_running when the event is in INACTIVE or
 	 * ACTIVE state, measured in nanoseconds from an arbitrary point
 	 * in time.
-	 * tstamp_enabled: the notional time when the counter was enabled
-	 * tstamp_running: the notional time when the counter was scheduled on
+	 * tstamp_enabled: the notional time when the event was enabled
+	 * tstamp_running: the notional time when the event was scheduled on
 	 * tstamp_stopped: in INACTIVE state, the notional time when the
-	 *	counter was scheduled off.
+	 *	event was scheduled off.
 	 */
 	u64				tstamp_enabled;
 	u64				tstamp_running;
 	u64				tstamp_stopped;
 
-	struct perf_counter_attr	attr;
-	struct hw_perf_counter		hw;
+	struct perf_event_attr	attr;
+	struct hw_perf_event		hw;
 
-	struct perf_counter_context	*ctx;
+	struct perf_event_context	*ctx;
 	struct file			*filp;
 
 	/*
 	 * These accumulate total time (in nanoseconds) that children
-	 * counters have been enabled and running, respectively.
+	 * events have been enabled and running, respectively.
 	 */
 	atomic64_t			child_total_time_enabled;
 	atomic64_t			child_total_time_running;
@@ -598,7 +598,7 @@ struct perf_counter {
 	 */
 	struct mutex			child_mutex;
 	struct list_head		child_list;
-	struct perf_counter		*parent;
+	struct perf_event		*parent;
 
 	int				oncpu;
 	int				cpu;
@@ -623,7 +623,7 @@ struct perf_counter {
 
 	atomic_t			event_limit;
 
-	void (*destroy)(struct perf_counter *);
+	void (*destroy)(struct perf_event *);
 	struct rcu_head			rcu_head;
 
 	struct pid_namespace		*ns;
@@ -632,18 +632,18 @@ struct perf_counter {
 };
 
 /**
- * struct perf_counter_context - counter context structure
+ * struct perf_event_context - event context structure
  *
- * Used as a container for task counters and CPU counters as well:
+ * Used as a container for task events and CPU events as well:
  */
-struct perf_counter_context {
+struct perf_event_context {
 	/*
-	 * Protect the states of the counters in the list,
+	 * Protect the states of the events in the list,
 	 * nr_active, and the list:
 	 */
 	spinlock_t			lock;
 	/*
-	 * Protect the list of counters.  Locking either mutex or lock
+	 * Protect the list of events.  Locking either mutex or lock
 	 * is sufficient to ensure the list doesn't change; to change
 	 * the list you need to lock both the mutex and the spinlock.
 	 */
@@ -651,7 +651,7 @@ struct perf_counter_context {
 
 	struct list_head		group_list;
 	struct list_head		event_list;
-	int				nr_counters;
+	int				nr_events;
 	int				nr_active;
 	int				is_active;
 	int				nr_stat;
@@ -668,7 +668,7 @@ struct perf_counter_context {
 	 * These fields let us detect when two contexts have both
 	 * been cloned (inherited) from a common ancestor.
 	 */
-	struct perf_counter_context	*parent_ctx;
+	struct perf_event_context	*parent_ctx;
 	u64				parent_gen;
 	u64				generation;
 	int				pin_count;
@@ -676,11 +676,11 @@ struct perf_counter_context {
 };
 
 /**
- * struct perf_counter_cpu_context - per cpu counter context structure
+ * struct perf_event_cpu_context - per cpu event context structure
  */
 struct perf_cpu_context {
-	struct perf_counter_context	ctx;
-	struct perf_counter_context	*task_ctx;
+	struct perf_event_context	ctx;
+	struct perf_event_context	*task_ctx;
 	int				active_oncpu;
 	int				max_pertask;
 	int				exclusive;
@@ -694,7 +694,7 @@ struct perf_cpu_context {
 };
 
 struct perf_output_handle {
-	struct perf_counter	*counter;
+	struct perf_event	*event;
 	struct perf_mmap_data	*data;
 	unsigned long		head;
 	unsigned long		offset;
@@ -704,35 +704,35 @@ struct perf_output_handle {
 	unsigned long		flags;
 };
 
-#ifdef CONFIG_PERF_COUNTERS
+#ifdef CONFIG_PERF_EVENTS
 
 /*
  * Set by architecture code:
  */
-extern int perf_max_counters;
+extern int perf_max_events;
 
-extern const struct pmu *hw_perf_counter_init(struct perf_counter *counter);
+extern const struct pmu *hw_perf_event_init(struct perf_event *event);
 
-extern void perf_counter_task_sched_in(struct task_struct *task, int cpu);
-extern void perf_counter_task_sched_out(struct task_struct *task,
+extern void perf_event_task_sched_in(struct task_struct *task, int cpu);
+extern void perf_event_task_sched_out(struct task_struct *task,
 					struct task_struct *next, int cpu);
-extern void perf_counter_task_tick(struct task_struct *task, int cpu);
-extern int perf_counter_init_task(struct task_struct *child);
-extern void perf_counter_exit_task(struct task_struct *child);
-extern void perf_counter_free_task(struct task_struct *task);
-extern void set_perf_counter_pending(void);
-extern void perf_counter_do_pending(void);
-extern void perf_counter_print_debug(void);
+extern void perf_event_task_tick(struct task_struct *task, int cpu);
+extern int perf_event_init_task(struct task_struct *child);
+extern void perf_event_exit_task(struct task_struct *child);
+extern void perf_event_free_task(struct task_struct *task);
+extern void set_perf_event_pending(void);
+extern void perf_event_do_pending(void);
+extern void perf_event_print_debug(void);
 extern void __perf_disable(void);
 extern bool __perf_enable(void);
 extern void perf_disable(void);
 extern void perf_enable(void);
-extern int perf_counter_task_disable(void);
-extern int perf_counter_task_enable(void);
-extern int hw_perf_group_sched_in(struct perf_counter *group_leader,
+extern int perf_event_task_disable(void);
+extern int perf_event_task_enable(void);
+extern int hw_perf_group_sched_in(struct perf_event *group_leader,
 	       struct perf_cpu_context *cpuctx,
-	       struct perf_counter_context *ctx, int cpu);
-extern void perf_counter_update_userpage(struct perf_counter *counter);
+	       struct perf_event_context *ctx, int cpu);
+extern void perf_event_update_userpage(struct perf_event *event);
 
 struct perf_sample_data {
 	u64				type;
@@ -758,96 +758,96 @@ struct perf_sample_data {
 extern void perf_output_sample(struct perf_output_handle *handle,
 			       struct perf_event_header *header,
 			       struct perf_sample_data *data,
-			       struct perf_counter *counter);
+			       struct perf_event *event);
 extern void perf_prepare_sample(struct perf_event_header *header,
 				struct perf_sample_data *data,
-				struct perf_counter *counter,
+				struct perf_event *event,
 				struct pt_regs *regs);
 
-extern int perf_counter_overflow(struct perf_counter *counter, int nmi,
+extern int perf_event_overflow(struct perf_event *event, int nmi,
 				 struct perf_sample_data *data,
 				 struct pt_regs *regs);
 
 /*
- * Return 1 for a software counter, 0 for a hardware counter
+ * Return 1 for a software event, 0 for a hardware event
  */
-static inline int is_software_counter(struct perf_counter *counter)
+static inline int is_software_event(struct perf_event *event)
 {
-	return (counter->attr.type != PERF_TYPE_RAW) &&
-		(counter->attr.type != PERF_TYPE_HARDWARE) &&
-		(counter->attr.type != PERF_TYPE_HW_CACHE);
+	return (event->attr.type != PERF_TYPE_RAW) &&
+		(event->attr.type != PERF_TYPE_HARDWARE) &&
+		(event->attr.type != PERF_TYPE_HW_CACHE);
 }
 
-extern atomic_t perf_swcounter_enabled[PERF_COUNT_SW_MAX];
+extern atomic_t perf_swevent_enabled[PERF_COUNT_SW_MAX];
 
-extern void __perf_swcounter_event(u32, u64, int, struct pt_regs *, u64);
+extern void __perf_sw_event(u32, u64, int, struct pt_regs *, u64);
 
 static inline void
-perf_swcounter_event(u32 event, u64 nr, int nmi, struct pt_regs *regs, u64 addr)
+perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr)
 {
-	if (atomic_read(&perf_swcounter_enabled[event]))
-		__perf_swcounter_event(event, nr, nmi, regs, addr);
+	if (atomic_read(&perf_swevent_enabled[event_id]))
+		__perf_sw_event(event_id, nr, nmi, regs, addr);
 }
 
-extern void __perf_counter_mmap(struct vm_area_struct *vma);
+extern void __perf_event_mmap(struct vm_area_struct *vma);
 
-static inline void perf_counter_mmap(struct vm_area_struct *vma)
+static inline void perf_event_mmap(struct vm_area_struct *vma)
 {
 	if (vma->vm_flags & VM_EXEC)
-		__perf_counter_mmap(vma);
+		__perf_event_mmap(vma);
 }
 
-extern void perf_counter_comm(struct task_struct *tsk);
-extern void perf_counter_fork(struct task_struct *tsk);
+extern void perf_event_comm(struct task_struct *tsk);
+extern void perf_event_fork(struct task_struct *tsk);
 
 extern struct perf_callchain_entry *perf_callchain(struct pt_regs *regs);
 
-extern int sysctl_perf_counter_paranoid;
-extern int sysctl_perf_counter_mlock;
-extern int sysctl_perf_counter_sample_rate;
+extern int sysctl_perf_event_paranoid;
+extern int sysctl_perf_event_mlock;
+extern int sysctl_perf_event_sample_rate;
 
-extern void perf_counter_init(void);
-extern void perf_tpcounter_event(int event_id, u64 addr, u64 count,
+extern void perf_event_init(void);
+extern void perf_tp_event(int event_id, u64 addr, u64 count,
 				 void *record, int entry_size);
 
 #ifndef perf_misc_flags
-#define perf_misc_flags(regs)	(user_mode(regs) ? PERF_EVENT_MISC_USER : \
-				 PERF_EVENT_MISC_KERNEL)
+#define perf_misc_flags(regs)	(user_mode(regs) ? PERF_RECORD_MISC_USER : \
+				 PERF_RECORD_MISC_KERNEL)
 #define perf_instruction_pointer(regs)	instruction_pointer(regs)
 #endif
 
 extern int perf_output_begin(struct perf_output_handle *handle,
-			     struct perf_counter *counter, unsigned int size,
+			     struct perf_event *event, unsigned int size,
 			     int nmi, int sample);
 extern void perf_output_end(struct perf_output_handle *handle);
 extern void perf_output_copy(struct perf_output_handle *handle,
 			     const void *buf, unsigned int len);
 #else
 static inline void
-perf_counter_task_sched_in(struct task_struct *task, int cpu)		{ }
+perf_event_task_sched_in(struct task_struct *task, int cpu)		{ }
 static inline void
-perf_counter_task_sched_out(struct task_struct *task,
+perf_event_task_sched_out(struct task_struct *task,
 			    struct task_struct *next, int cpu)		{ }
 static inline void
-perf_counter_task_tick(struct task_struct *task, int cpu)		{ }
-static inline int perf_counter_init_task(struct task_struct *child)	{ return 0; }
-static inline void perf_counter_exit_task(struct task_struct *child)	{ }
-static inline void perf_counter_free_task(struct task_struct *task)	{ }
-static inline void perf_counter_do_pending(void)			{ }
-static inline void perf_counter_print_debug(void)			{ }
+perf_event_task_tick(struct task_struct *task, int cpu)		{ }
+static inline int perf_event_init_task(struct task_struct *child)	{ return 0; }
+static inline void perf_event_exit_task(struct task_struct *child)	{ }
+static inline void perf_event_free_task(struct task_struct *task)	{ }
+static inline void perf_event_do_pending(void)			{ }
+static inline void perf_event_print_debug(void)			{ }
 static inline void perf_disable(void)					{ }
 static inline void perf_enable(void)					{ }
-static inline int perf_counter_task_disable(void)	{ return -EINVAL; }
-static inline int perf_counter_task_enable(void)	{ return -EINVAL; }
+static inline int perf_event_task_disable(void)	{ return -EINVAL; }
+static inline int perf_event_task_enable(void)	{ return -EINVAL; }
 
 static inline void
-perf_swcounter_event(u32 event, u64 nr, int nmi,
+perf_sw_event(u32 event_id, u64 nr, int nmi,
 		     struct pt_regs *regs, u64 addr)			{ }
 
-static inline void perf_counter_mmap(struct vm_area_struct *vma)	{ }
-static inline void perf_counter_comm(struct task_struct *tsk)		{ }
-static inline void perf_counter_fork(struct task_struct *tsk)		{ }
-static inline void perf_counter_init(void)				{ }
+static inline void perf_event_mmap(struct vm_area_struct *vma)	{ }
+static inline void perf_event_comm(struct task_struct *tsk)		{ }
+static inline void perf_event_fork(struct task_struct *tsk)		{ }
+static inline void perf_event_init(void)				{ }
 
 #endif
 
@@ -855,4 +855,4 @@ static inline void perf_counter_init(void)				{ }
 	perf_output_copy((handle), &(x), sizeof(x))
 
 #endif /* __KERNEL__ */
-#endif /* _LINUX_PERF_COUNTER_H */
+#endif /* _LINUX_PERF_EVENT_H */

include/linux/prctl.h

@@ -85,7 +85,7 @@
 #define PR_SET_TIMERSLACK 29
 #define PR_GET_TIMERSLACK 30
 
-#define PR_TASK_PERF_COUNTERS_DISABLE		31
-#define PR_TASK_PERF_COUNTERS_ENABLE		32
+#define PR_TASK_PERF_EVENTS_DISABLE		31
+#define PR_TASK_PERF_EVENTS_ENABLE		32
 
 #endif /* _LINUX_PRCTL_H */

include/linux/sched.h

@@ -100,7 +100,7 @@ struct robust_list_head;
 struct bio;
 struct fs_struct;
 struct bts_context;
-struct perf_counter_context;
+struct perf_event_context;
 
 /*
  * List of flags we want to share for kernel threads,
@@ -701,7 +701,7 @@ struct user_struct {
 #endif
 #endif
 
-#ifdef CONFIG_PERF_COUNTERS
+#ifdef CONFIG_PERF_EVENTS
 	atomic_long_t locked_vm;
 #endif
 };
@@ -1449,10 +1449,10 @@ struct task_struct {
 	struct list_head pi_state_list;
 	struct futex_pi_state *pi_state_cache;
 #endif
-#ifdef CONFIG_PERF_COUNTERS
-	struct perf_counter_context *perf_counter_ctxp;
-	struct mutex perf_counter_mutex;
-	struct list_head perf_counter_list;
+#ifdef CONFIG_PERF_EVENTS
+	struct perf_event_context *perf_event_ctxp;
+	struct mutex perf_event_mutex;
+	struct list_head perf_event_list;
 #endif
 #ifdef CONFIG_NUMA
 	struct mempolicy *mempolicy;	/* Protected by alloc_lock */

include/linux/syscalls.h

@@ -55,7 +55,7 @@ struct compat_timeval;
 struct robust_list_head;
 struct getcpu_cache;
 struct old_linux_dirent;
-struct perf_counter_attr;
+struct perf_event_attr;
 
 #include <linux/types.h>
 #include <linux/aio_abi.h>
@@ -885,7 +885,7 @@ asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
 int kernel_execve(const char *filename, char *const argv[], char *const envp[]);
 
 
-asmlinkage long sys_perf_counter_open(
-		struct perf_counter_attr __user *attr_uptr,
+asmlinkage long sys_perf_event_open(
+		struct perf_event_attr __user *attr_uptr,
 		pid_t pid, int cpu, int group_fd, unsigned long flags);
 #endif