linux/arch/m68k
Ingo Molnar cdd6c482c9 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>
2009-09-21 14:28:04 +02:00
..
amiga m68k: cnt reaches -1, not 0 2009-08-26 23:14:49 +02:00
apollo m68k: apollo core - Kill warn_unused_result warnings 2009-01-12 20:56:35 +01:00
atari m68k: atari - Rename "mfp" to "st_mfp" 2009-02-22 09:23:02 -08:00
bvme6000 m68k: Kill several external declarations in source files 2009-01-12 20:56:34 +01:00
configs m68k: Update defconfigs for 2.6.30-rc3 2009-04-22 20:55:12 +02:00
fpsp040 m68k: fix trigraph ignored warning in setox.S 2008-12-28 20:00:05 +01:00
hp300 m68k: hp300 core - Kill warn_unused_result warnings 2009-01-12 20:56:36 +01:00
ifpsp060 Stringify support commas 2008-07-20 17:24:38 -07:00
include/asm perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
kernel perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
lib Stringify support commas 2008-07-20 17:24:38 -07:00
mac m68k: mac - Add SWIM floppy support 2009-03-26 21:15:27 +01:00
math-emu locking, m68k/asm-offsets: Rename signal defines 2009-09-01 09:38:03 +02:00
mm Move FAULT_FLAG_xyz into handle_mm_fault() callers 2009-06-21 13:08:22 -07:00
mvme16x m68k: Kill several external declarations in source files 2009-01-12 20:56:34 +01:00
mvme147 m68k: mvme147 core - Kill warn_unused_result warnings 2009-01-12 20:56:37 +01:00
q40 m68k: Kill several external declarations in source files 2009-01-12 20:56:34 +01:00
sun3 m68k: sun3 core - Kill warn_unused_result warnings 2009-01-12 20:56:38 +01:00
sun3x m68k: Kill several external declarations in source files 2009-01-12 20:56:34 +01:00
tools/amiga Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
install.sh m68k: Add install target 2009-03-26 21:15:26 +01:00
Kconfig trivial: fix then -> than typos in comments and documentation 2009-01-06 11:28:06 +01:00
Kconfig.debug
Makefile m68k: Add install target 2009-03-26 21:15:26 +01:00