perf_counter tools: Rename output.perf to perf.data

output.perf is only output to perf-record - it's input to
perf-report. So change it to a more direction-neutral name.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Documentation/perf_counter/Documentation/perf-record.txt

@@ -3,7 +3,7 @@ perf-record(1)
 
 NAME
 ----
-perf-record - Run a command and record its profile into output.perf
+perf-record - Run a command and record its profile into perf.data
 
 SYNOPSIS
 --------
@@ -13,7 +13,7 @@ SYNOPSIS
 DESCRIPTION
 -----------
 This command runs a command and gathers a performance counter profile
-from it, into output.perf - without displaying anything.
+from it, into perf.data - without displaying anything.
 
 This file can then be inspected later on, using 'perf report'.
 

Documentation/perf_counter/Documentation/perf-report.txt

@@ -3,7 +3,7 @@ perf-report(1)
 
 NAME
 ----
-perf-report - Read output.perf (created by perf record) and display the profile
+perf-report - Read perf.data (created by perf record) and display the profile
 
 SYNOPSIS
 --------
@@ -19,7 +19,7 @@ OPTIONS
 -------
 -i::
 --input=::
-        Input file name. (default: output.perf)
+        Input file name. (default: perf.data)
 
 Configuration
 -------------

Documentation/perf_counter/builtin-record.c

@@ -19,7 +19,7 @@ static int			nr_cpus				=  0;
 static unsigned int		page_size;
 static unsigned int		mmap_pages			= 16;
 static int			output;
-static const char		*output_name			= "output.perf";
+static const char		*output_name			= "perf.data";
 static int			group				= 0;
 static unsigned int		realtime_prio			= 0;
 static int			system_wide			= 0;

Documentation/perf_counter/builtin-report.c

@@ -18,7 +18,7 @@
 #define SHOW_USER	2
 #define SHOW_HV		4
 
-static char		const *input_name = "output.perf";
+static char		const *input_name = "perf.data";
 static int		input;
 static int		show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV;